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Zhang Y, Guo B, Zhai F, Jiang W. Multiple harmonics control of edge pseudomagnetoplasmons in strained grapheme. OPTICS EXPRESS 2018; 26:33453-33462. [PMID: 30645497 DOI: 10.1364/oe.26.033453] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 11/30/2018] [Indexed: 06/09/2023]
Abstract
Valley-resolved edge plasmons are relevant to nano-optics at subwavelength scales. However, less attention has been paid to their tunable properties in time domain. In this work we investigate edge pseudomagnetoplasmons in a strained graphene modulated by multiple harmonics with frequency in the THz regime. The edge plasmon is described by a set of nonlinear hydrodynamic equations, which are self-consistently solved by the flux-corrected transport method. Without the applied voltage, there exist two unidirectional-propagating edge-plasmon modes with weak valley polarization P. It is demonstrated that by varying the amplitude of multiple harmonics one can alter both the amplitude and the polarity of the valley polarization in the edge plasmon. One can achieve a full valley polarization P=1 at the instant of half cycle of the multiple harmonics and P=-1 at the instant of one cycle. The edge-plasmon density and the transverse velocity vanish for the frozen valley.
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2
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Idrisov EG, Levkivskyi IP, Sukhorukov EV. Dephasing in a Mach-Zehnder Interferometer by an Ohmic Contact. PHYSICAL REVIEW LETTERS 2018; 121:026802. [PMID: 30085740 DOI: 10.1103/physrevlett.121.026802] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Indexed: 06/08/2023]
Abstract
We study dephasing in an electronic Mach-Zehnder (MZ) interferometer based on quantum Hall edge states by a micrometer-sized Ohmic contact embedded in one of its arms. We find that at the filling factor ν=1, as well as in the case where an Ohmic contact is connected to a MZ interferometer by a quantum point contact that transmits only one electron channel, the phase coherence may not be fully suppressed. Namely, if the voltage bias Δμ and the temperature T are small compared to the charging energy of the Ohmic contact E_{C}, the free fermion picture is manifested, and the visibility saturates at its maximum value. At large biases, Δμ≫E_{C}, the visibility decays in a power-law manner.
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Affiliation(s)
- Edvin G Idrisov
- Département de Physique Théorique, Université de Genève, CH-1211 Genève 4, Switzerland
- Physics and Materials Science Research Unit, University of Luxembourg, L-1511 Luxembourg, Luxembourg
| | - Ivan P Levkivskyi
- Theoretische Physik, ETH Zurich, CH-8093 Zurich, Switzerland
- Institute of Ecology and Evolution, University of Bern, CH-3012 Bern, Switzerland
- Department of Computational Biology, University of Lausanne, CH-1011 Lausanne, Switzerland
| | - Eugene V Sukhorukov
- Département de Physique Théorique, Université de Genève, CH-1211 Genève 4, Switzerland
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3
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Rosenblatt A, Lafont F, Levkivskyi I, Sabo R, Gurman I, Banitt D, Heiblum M, Umansky V. Transmission of heat modes across a potential barrier. Nat Commun 2017; 8:2251. [PMID: 29269780 PMCID: PMC5740138 DOI: 10.1038/s41467-017-02433-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 11/30/2017] [Indexed: 11/08/2022] Open
Abstract
Controlling the transmission of electrical current using a quantum point contact constriction paved a way to a large variety of experiments in mesoscopic physics. The increasing interest in heat transfer in such systems fosters questions about possible manipulations of quantum heat modes that do not carry net charge (neutral modes). Here we study the transmission of upstream neutral modes through a quantum point contact in fractional hole-conjugate quantum Hall states. Employing two different measurement techniques, we were able to render the relative spatial distribution of these chargeless modes with their charged counterparts. In these states, which were found to harbor more than one downstream charge mode, the upstream neutral modes are found to flow with the inner charge mode-as theoretically predicted. These results unveil a universal upstream heat current structure and open the path for more complex engineering of heat flows and cooling mechanisms in quantum nano-electronic devices.
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Affiliation(s)
- Amir Rosenblatt
- Braun Center for Submicron Research, Dept. of Condensed Matter physics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Fabien Lafont
- Braun Center for Submicron Research, Dept. of Condensed Matter physics, Weizmann Institute of Science, Rehovot, 76100, Israel.
| | - Ivan Levkivskyi
- Institute of Ecology and Evolution, University of Bern, CH-3012, Bern, Switzerland
| | - Ron Sabo
- Braun Center for Submicron Research, Dept. of Condensed Matter physics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Itamar Gurman
- Braun Center for Submicron Research, Dept. of Condensed Matter physics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Daniel Banitt
- Braun Center for Submicron Research, Dept. of Condensed Matter physics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Moty Heiblum
- Braun Center for Submicron Research, Dept. of Condensed Matter physics, Weizmann Institute of Science, Rehovot, 76100, Israel
| | - Vladimir Umansky
- Braun Center for Submicron Research, Dept. of Condensed Matter physics, Weizmann Institute of Science, Rehovot, 76100, Israel
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4
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Jin D, Lu L, Wang Z, Fang C, Joannopoulos JD, Soljačić M, Fu L, Fang NX. Topological magnetoplasmon. Nat Commun 2016; 7:13486. [PMID: 27892453 PMCID: PMC5148233 DOI: 10.1038/ncomms13486] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Accepted: 10/03/2016] [Indexed: 11/09/2022] Open
Abstract
Classical wave fields are real-valued, ensuring the wave states at opposite frequencies and momenta to be inherently identical. Such a particle–hole symmetry can open up new possibilities for topological phenomena in classical systems. Here we show that the historically studied two-dimensional (2D) magnetoplasmon, which bears gapped bulk states and gapless one-way edge states near-zero frequency, is topologically analogous to the 2D topological p+ip superconductor with chiral Majorana edge states and zero modes. We further predict a new type of one-way edge magnetoplasmon at the interface of opposite magnetic domains, and demonstrate the existence of zero-frequency modes bounded at the peripheries of a hollow disk. These findings can be readily verified in experiment, and can greatly enrich the topological phases in bosonic and classical systems. The two dimensional magnetoplasmon edge state has been observed for a long time, but its nature is yet to be uncovered. Here, Jin et al. report that such a state is actually topological protected, analogous to the chiral Majorana edge state in a p-wave topological superconductor.
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Affiliation(s)
- Dafei Jin
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Ling Lu
- Institute of Physics, Chinese Academy of Sciences/Beijing National Laboratory for Condensed Matter Physics, Beijing 100190, China.,Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Zhong Wang
- Institute for Advanced Study, Tsinghua University, Beijing 100084, China.,Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
| | - Chen Fang
- Institute of Physics, Chinese Academy of Sciences/Beijing National Laboratory for Condensed Matter Physics, Beijing 100190, China.,Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - John D Joannopoulos
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Marin Soljačić
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Liang Fu
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Nicholas X Fang
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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5
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Kumada N, Roulleau P, Roche B, Hashisaka M, Hibino H, Petković I, Glattli DC. Resonant edge magnetoplasmons and their decay in graphene. PHYSICAL REVIEW LETTERS 2014; 113:266601. [PMID: 25615366 DOI: 10.1103/physrevlett.113.266601] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2014] [Indexed: 06/04/2023]
Abstract
We investigate resonant edge magnetoplasmons (EMPs) and their decay in graphene by high-frequency electronic measurements. From EMP resonances in disk shaped graphene, we show that the dispersion relation of EMPs is nonlinear due to interactions, giving rise to the intrinsic decay of EMP wave packets. We also identify extrinsic dissipation mechanisms due to interaction with localized states in bulk graphene from the decay time of EMP wave packets. We indicate that, owing to the linear band structure and the sharp edge potential, EMP dissipation in graphene can be lower than that in GaAs systems.
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Affiliation(s)
- N Kumada
- NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi 243-0198, Japan and Nanoelectronics Group, Service de Physique de l'Etat Condensé, IRAMIS/DSM (CNRS URA 2464), CEA Saclay, F-91191 Gif-sur-Yvette, France
| | - P Roulleau
- Nanoelectronics Group, Service de Physique de l'Etat Condensé, IRAMIS/DSM (CNRS URA 2464), CEA Saclay, F-91191 Gif-sur-Yvette, France
| | - B Roche
- Nanoelectronics Group, Service de Physique de l'Etat Condensé, IRAMIS/DSM (CNRS URA 2464), CEA Saclay, F-91191 Gif-sur-Yvette, France
| | - M Hashisaka
- Department of Physics, Tokyo Institute of Technology, Ookayama, Meguro, Tokyo 152-8551, Japan
| | - H Hibino
- NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi 243-0198, Japan
| | - I Petković
- Nanoelectronics Group, Service de Physique de l'Etat Condensé, IRAMIS/DSM (CNRS URA 2464), CEA Saclay, F-91191 Gif-sur-Yvette, France
| | - D C Glattli
- Nanoelectronics Group, Service de Physique de l'Etat Condensé, IRAMIS/DSM (CNRS URA 2464), CEA Saclay, F-91191 Gif-sur-Yvette, France
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6
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Bocquillon E, Freulon V, Berroir J.M, Degiovanni P, Plaçais B, Cavanna A, Jin Y, Fève G. Separation of neutral and charge modes in one-dimensional chiral edge channels. Nat Commun 2013; 4:1839. [DOI: 10.1038/ncomms2788] [Citation(s) in RCA: 100] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2012] [Accepted: 03/22/2013] [Indexed: 11/09/2022] Open
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7
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Petković I, Williams FIB, Bennaceur K, Portier F, Roche P, Glattli DC. Carrier drift velocity and edge magnetoplasmons in graphene. PHYSICAL REVIEW LETTERS 2013; 110:016801. [PMID: 23383820 DOI: 10.1103/physrevlett.110.016801] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Indexed: 06/01/2023]
Abstract
We investigate electron dynamics at the graphene edge by studying the propagation of collective edge magnetoplasmon excitations. By timing the travel of narrow wave packets on picosecond time scales around exfoliated samples, we find chiral propagation with low attenuation at a velocity that is quantized on Hall plateaus. We extract the carrier drift contribution from the edge magnetoplasmon propagation and find it to be slightly less than the Fermi velocity, as expected for an abrupt edge. We also extract the characteristic length for Coulomb interaction at the edge and find it to be smaller than that for soft depletion-edge systems.
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Affiliation(s)
- I Petković
- Service de Physique de l'État Condensé, Commissariat à l'Énergie Atomique, 91191 Gif-sur-Yvette, France.
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8
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Kumada N, Tanabe S, Hibino H, Kamata H, Hashisaka M, Muraki K, Fujisawa T. Plasmon transport in graphene investigated by time-resolved electrical measurements. Nat Commun 2013; 4:1363. [PMID: 23322051 PMCID: PMC3562445 DOI: 10.1038/ncomms2353] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2012] [Accepted: 12/03/2012] [Indexed: 11/08/2022] Open
Abstract
Plasmons, which are collective charge oscillations, could provide a means of confining electromagnetic field to nanoscale structures. Recently, plasmonics using graphene have attracted interest, particularly because of the tunable plasmon dispersion, which will be useful for tunable frequency in cavity applications. However, the carrier density dependence of the dispersion is weak (proportional to n(1/4)) and it is difficult to tune the frequency over orders of magnitude. Here, by exploiting electronic excitation and detection, we carry out time-resolved measurements of a charge pulse travelling in a plasmon mode in graphene corresponding to the gigahertz range. We demonstrate that the plasmon velocity can be changed over two orders of magnitude by applying a magnetic field B and by screening the plasmon electric field with a gate metal; at high B, edge magnetoplasmons, which are plasmons localized at the sample edge, are formed and their velocity depends on B, n and the gate screening effect.
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Affiliation(s)
- N Kumada
- NTT Basic Research Laboratories, NTT Corporation, 3-1 Morinosato-Wakamiya, Atsugi, Kanagawa 243-0198, Japan.
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9
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Levkivskyi IP, Sukhorukov EV. Shot-noise thermometry of the quantum Hall edge States. PHYSICAL REVIEW LETTERS 2012; 109:246806. [PMID: 23368365 DOI: 10.1103/physrevlett.109.246806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Indexed: 06/01/2023]
Abstract
We use the nonequilibrium bosonization technique to investigate the effects of the Coulomb interaction on quantum Hall edge states at a filling factor ν=2, partitioned by a quantum point contact (QPC). We find that, due to the integrability of charge dynamics, edge states evolve to a nonequilibrium stationary state with a number of specific features. In particular, the noise temperature Θ of a weak backscattering current between edge channels is linear in voltage bias applied at the QPC, independently of the interaction strength. In addition, it is a nonanalytical function of the QPC transparency T and scales as Θ proportional Tln(1/T) at T << 1. Our predictions are confirmed by exact numerical calculations.
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Affiliation(s)
- Ivan P Levkivskyi
- Département de Physique Théorique, Université de Genève, CH-1211 Genève 4, Switzerland
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10
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Altimiras C, le Sueur H, Gennser U, Anthore A, Cavanna A, Mailly D, Pierre F. Chargeless heat transport in the fractional quantum Hall regime. PHYSICAL REVIEW LETTERS 2012; 109:026803. [PMID: 23030194 DOI: 10.1103/physrevlett.109.026803] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2012] [Indexed: 06/01/2023]
Abstract
We demonstrate a direct approach to investigate heat transport in the fractional quantum Hall regime. At a filling factor of ν=4/3, we inject power at quantum point contacts and detect the related heating from the activated current through a quantum dot. The experiment reveals a chargeless heat transport from a significant heating that occurs upstream of the power injection point, in the absence of a concomitant electrical current. By tuning in situ the edge path, we show that the chargeless heat transport does not follow the reverse direction of the electrical current path along the edge. This unexpected heat conduction, whose mechanism remains to be elucidated, may play an important role in the physics of the fractional quantum Hall regime.
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Affiliation(s)
- C Altimiras
- CNRS/Université Paris Diderot (Sorbonne Paris Cité), Laboratoire de Photonique et de Nanostructures (LPN), Route de Nozay, 91460 Marcoussis, France
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11
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Altimiras C, le Sueur H, Gennser U, Cavanna A, Mailly D, Pierre F. Tuning energy relaxation along quantum Hall channels. PHYSICAL REVIEW LETTERS 2010; 105:226804. [PMID: 21231413 DOI: 10.1103/physrevlett.105.226804] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Indexed: 05/30/2023]
Abstract
The chiral edge channels in the quantum Hall regime are considered ideal ballistic quantum channels, and have quantum information processing potentialities. Here, we demonstrate experimentally, at a filling factor of ν(L)=2, the efficient tuning of the energy relaxation that limits quantum coherence and permits the return toward equilibrium. Energy relaxation along an edge channel is controllably enhanced by increasing its transmission toward a floating Ohmic contact, in quantitative agreement with predictions. Moreover, by forming a closed inner edge channel loop, we freeze energy exchanges in the outer channel. This result also elucidates the inelastic mechanisms at work at ν(L)=2, informing us, in particular, that those within the outer edge channel are negligible.
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Affiliation(s)
- C Altimiras
- CNRS, Laboratoire de Photonique et de Nanostructures—Phynano Team, route de Nozay, 91460 Marcoussis, France
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12
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le Sueur H, Altimiras C, Gennser U, Cavanna A, Mailly D, Pierre F. Energy relaxation in the integer quantum Hall regime. PHYSICAL REVIEW LETTERS 2010; 105:056803. [PMID: 20867945 DOI: 10.1103/physrevlett.105.056803] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2010] [Indexed: 05/29/2023]
Abstract
We investigate the energy exchanges along an electronic quantum channel realized in the integer quantum Hall regime at a filling factor of νL=2. One of the two edge channels is driven out of equilibrium and the resulting electronic energy distribution is measured in the outer channel, after several propagation lengths 0.8 μm≤L≤30 μm. Whereas there are no discernible energy transfers toward thermalized states, we find efficient energy redistribution between the two channels without particle exchanges. At long distances L≥10 μm, the measured energy distribution is a hot Fermi function whose temperature is lower than expected for two interacting channels, which suggests the contribution of extra degrees of freedom. The observed short energy relaxation length challenges the usual description of quantum Hall excitations as quasiparticles localized in one edge channel.
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Affiliation(s)
- H le Sueur
- CNRS, Laboratoire de Photonique et de Nanostructures (LPN)-Phynano team, route de Nozay, 91460 Marcoussis, France
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13
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Mishchenko EG, Shytov AV, Silvestrov PG. Guided plasmons in graphene p-n junctions. PHYSICAL REVIEW LETTERS 2010; 104:156806. [PMID: 20482009 DOI: 10.1103/physrevlett.104.156806] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/01/2010] [Indexed: 05/29/2023]
Abstract
Spatial separation of electrons and holes in graphene gives rise to the existence of plasmon waves confined to the boundary region. A theory of such guided plasmon modes within hydrodynamics of electron-hole liquid is developed. For plasmon wavelengths smaller than the size of charged domains, plasmon dispersion is found to be omega proportional to q(1/4). The frequency, velocity, and direction of propagation of guided plasmon modes can be easily controlled by the external electric field. In the presence of a magnetic field, a spectrum of additional gapless magnetoplasmon excitations is obtained. Our findings indicate that graphene is a promising material for nanoplasmonics.
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Affiliation(s)
- E G Mishchenko
- Department of Physics and Astronomy, University of Utah, Salt Lake City, Utah 84112, USA
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14
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Papa E, Stroh T. Metal-insulator transition tuned by external gates in Hall systems with constrictions. PHYSICAL REVIEW LETTERS 2006; 97:046801. [PMID: 16907604 DOI: 10.1103/physrevlett.97.046801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2005] [Indexed: 05/11/2023]
Abstract
The nature of a metal-insulator transition tuned by external gates in quantum Hall systems with point constrictions, as reported in recent experiments [S. Roddaro, Phys. Rev. Lett. 95, 156804 (2005)10.1103/PhysRevLett.95.156804], is examined. We attribute this phenomenon to a splitting of the integer edge into conducting and insulating stripes, the latter wide enough to allow for the stability of the edge structure. Interchannel impurity scattering and interchannel Coulomb interactions do not destabilize this picture.
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Affiliation(s)
- Emiliano Papa
- Department of Physics, University of Virginia, Charlottesville, Virginia 22904-4714, USA
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15
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D'Agosta R, Vignale G, Raimondi R. Temperature dependence of the tunneling amplitude between quantum hall edges. PHYSICAL REVIEW LETTERS 2005; 94:086801. [PMID: 15783914 DOI: 10.1103/physrevlett.94.086801] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/02/2004] [Indexed: 05/24/2023]
Abstract
Recent experiments have studied the tunneling current between the edges of a fractional quantum Hall liquid as a function of temperature and voltage. The results of the experiment are puzzling because at "high" temperature (600-900 mK) the behavior of the tunneling conductance is consistent with the theory of tunneling between chiral Luttinger liquids, but at low temperature it strongly deviates from that prediction dropping to zero with decreasing temperature. In this Letter we suggest a possible explanation of this behavior in terms of the strong temperature dependence of the tunneling amplitude.
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Affiliation(s)
- Roberto D'Agosta
- NEST-INFM and Department of Physics and Astronomy, University of Missouri-Columbia, Columbia, MO 65211, USA.
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16
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Sukhodub G, Hohls F, Haug RJ. Observation of an interedge magnetoplasmon mode in a degenerate two-dimensional electron gas. PHYSICAL REVIEW LETTERS 2004; 93:196801. [PMID: 15600861 DOI: 10.1103/physrevlett.93.196801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2004] [Indexed: 05/24/2023]
Abstract
We study the propagation of edge magnetoplasmons by time-resolved current measurements in a sample which allows for selective detection of edge states in the quantum Hall regime. At filling factors close to nu=3 we observe two decoupled modes of edge excitations, one of which is related to the innermost compressible strip and is identified as an interedge magnetoplasmon mode. From the analysis of the propagation velocities of each mode the internal spatial parameters of the edge structure are derived.
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Affiliation(s)
- G Sukhodub
- Institut für Festkörperphysik, Universität Hannover, Appelstrasse 2, D-30167 Hannover, Germany.
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17
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Kukushkin IV, Akimov MY, Smet JH, Mikhailov SA, von Klitzing K, Aleiner IL, Falko VI. New type of B-periodic magneto-oscillations in a two-dimensional electron system induced by microwave irradiation. PHYSICAL REVIEW LETTERS 2004; 92:236803. [PMID: 15245184 DOI: 10.1103/physrevlett.92.236803] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2003] [Indexed: 05/24/2023]
Abstract
We observe a new type of magneto-oscillations in the photovoltage and the longitudinal resistance of a two-dimensional electron system. The oscillations are induced by microwave radiation and are periodic in magnetic field. The period is determined by the microwave frequency, the electron density, and the distance between potential probes. The phenomenon is accounted for by interference of coherently excited edge magnetoplasmons in the contact regions and offers perspectives for developing new tunable microwave and terahertz detection schemes and spectroscopic techniques.
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Affiliation(s)
- I V Kukushkin
- Max-Planck-Institut für Festkörperforschung, Heisenbergstrasse 1, D-70569 Stuttgart, Germany
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18
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Conti S, Vignale G. Collective modes and electronic spectral function in smooth edges of quantum hall systems. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:R14309-R14312. [PMID: 9985514 DOI: 10.1103/physrevb.54.r14309] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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19
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Ernst G, Haug RJ, Kuhl J, Eberl K. Acoustic Edge Modes of the Degenerate Two-Dimensional Electron Gas Studied by Time-Resolved Magnetotransport Measurements. PHYSICAL REVIEW LETTERS 1996; 77:4245-4248. [PMID: 10062485 DOI: 10.1103/physrevlett.77.4245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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20
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Reboredo FA, Proetto CR. Magnetoplasmons in a ring-shaped two-dimensional electron gas. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:12617-12620. [PMID: 9982925 DOI: 10.1103/physrevb.53.12617] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Zaremba E. Magnetoplasma excitations in electron rings. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:R10512-R10515. [PMID: 9982719 DOI: 10.1103/physrevb.53.r10512] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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22
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Elliott PL, Pakes CI, Skrbek L, Vinen WF. Novel edge magnetoplasmons in a two-dimensional sheet of 4He+ ions. PHYSICAL REVIEW LETTERS 1995; 75:3713-3715. [PMID: 10059708 DOI: 10.1103/physrevlett.75.3713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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23
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Aleiner IL, Yue D, Glazman LI. Acoustic excitations of a confined two-dimensional electron liquid in a magnetic field. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:13467-13474. [PMID: 9978150 DOI: 10.1103/physrevb.51.13467] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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24
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Aleiner IL, Baranger HU, Glazman LI. Tunneling into a Two-Dimensional Electron Liquid in a Weak Magnetic Field. PHYSICAL REVIEW LETTERS 1995; 74:3435-3438. [PMID: 10058200 DOI: 10.1103/physrevlett.74.3435] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Kirichek OI, Sommerfeld PK, Monarkha YP, Peters PJ, Kovdrya YZ, Steijaert PP. Observation of novel edge excitations of a two-dimensional electron liquid on helium in a magnetic field. PHYSICAL REVIEW LETTERS 1995; 74:1190-1193. [PMID: 10058957 DOI: 10.1103/physrevlett.74.1190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Xia X, Quinn JJ. Edge magnetoplasmons of two-dimensional electron-gas systems. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:11187-11189. [PMID: 9975233 DOI: 10.1103/physrevb.50.11187] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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