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Fei F, Zhang S, Zhang M, Shah SA, Song F, Wang X, Wang B. The Material Efforts for Quantized Hall Devices Based on Topological Insulators. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1904593. [PMID: 31840308 DOI: 10.1002/adma.201904593] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2019] [Revised: 09/09/2019] [Indexed: 06/10/2023]
Abstract
A topological insulator (TI) is a kind of novel material hosting a topological band structure and plenty of exotic topological quantum effects. Achieving quantized electrical transport, including the quantum Hall effect (QHE) and the quantum anomalous Hall effect (QAHE), is an important aspect of realizing quantum devices based on TI materials. Intense efforts are made in this field, in which the most essential research is based on the optimization of realistic TI materials. Herein, the TI material development process is reviewed, focusing on the realization of quantized transport. Especially, for QHE, the strategies to increase the surface transport ratio and decrease the threshold magnetic field of QHE are examined. For QAHE, the evolution history of magnetic TIs is introduced, and the recently discovered magnetic TI candidates with intrinsic magnetizations are discussed in detail. Moreover, future research perspectives on these novel topological quantum effects are also evaluated.
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Affiliation(s)
- Fucong Fei
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing, 210093, China
| | - Shuai Zhang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing, 210093, China
| | - Minhao Zhang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing, 210093, China
| | - Syed Adil Shah
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing, 210093, China
| | - Fengqi Song
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing, 210093, China
| | - Xuefeng Wang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Electronic Science and Engineering, Nanjing University, Nanjing, 210093, China
| | - Baigeng Wang
- National Laboratory of Solid State Microstructures, Collaborative Innovation Center of Advanced Microstructures, School of Physics, Nanjing University, Nanjing, 210093, China
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Yang M, Couturaud O, Desrat W, Consejo C, Kazazis D, Yakimova R, Syväjärvi M, Goiran M, Béard J, Frings P, Pierre M, Cresti A, Escoffier W, Jouault B. Puddle-Induced Resistance Oscillations in the Breakdown of the Graphene Quantum Hall Effect. PHYSICAL REVIEW LETTERS 2016; 117:237702. [PMID: 27982608 DOI: 10.1103/physrevlett.117.237702] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Indexed: 06/06/2023]
Abstract
We report on the stability of the quantum Hall plateau in wide Hall bars made from a chemically gated graphene film grown on SiC. The ν=2 quantized plateau appears from fields B≃5 T and persists up to B≃80 T. At high current density, in the breakdown regime, the longitudinal resistance oscillates with a 1/B periodicity and an anomalous phase, which we relate to the presence of additional electron reservoirs. The high field experimental data suggest that these reservoirs induce a continuous increase of the carrier density up to the highest available magnetic field, thus enlarging the quantum plateaus. These in-plane inhomogeneities, in the form of high carrier density graphene pockets, modulate the quantum Hall effect breakdown and decrease the breakdown current.
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Affiliation(s)
- M Yang
- Laboratoire National des Champs Magnétiques Intenses, EMFL-LNCMI, INSA, UPS, CNRS UPR 3228, Université de Toulouse, 143 avenue de Rangueil, 31400 Toulouse, France
| | - O Couturaud
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier, 34095 Montpellier, France
| | - W Desrat
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier, 34095 Montpellier, France
| | - C Consejo
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier, 34095 Montpellier, France
| | - D Kazazis
- Centre de Nanosciences et de Nanotechnologies, CNRS, Université Paris-Sud, Université Paris-Saclay, C2N Marcoussis, 91460 Marcoussis, France
- Laboratory for Micro and Nanotechnology, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland
| | - R Yakimova
- Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden
| | - M Syväjärvi
- Department of Physics, Chemistry and Biology, Linköping University, SE-58183 Linköping, Sweden
| | - M Goiran
- Laboratoire National des Champs Magnétiques Intenses, EMFL-LNCMI, INSA, UPS, CNRS UPR 3228, Université de Toulouse, 143 avenue de Rangueil, 31400 Toulouse, France
| | - J Béard
- Laboratoire National des Champs Magnétiques Intenses, EMFL-LNCMI, INSA, UPS, CNRS UPR 3228, Université de Toulouse, 143 avenue de Rangueil, 31400 Toulouse, France
| | - P Frings
- Laboratoire National des Champs Magnétiques Intenses, EMFL-LNCMI, INSA, UPS, CNRS UPR 3228, Université de Toulouse, 143 avenue de Rangueil, 31400 Toulouse, France
| | - M Pierre
- Laboratoire National des Champs Magnétiques Intenses, EMFL-LNCMI, INSA, UPS, CNRS UPR 3228, Université de Toulouse, 143 avenue de Rangueil, 31400 Toulouse, France
| | - A Cresti
- Université Grenoble Alpes, IMEP-LAHC, F-38000 Grenoble, France
- CNRS, IMEP-LAHC, F-38000 Grenoble, France
| | - W Escoffier
- Laboratoire National des Champs Magnétiques Intenses, EMFL-LNCMI, INSA, UPS, CNRS UPR 3228, Université de Toulouse, 143 avenue de Rangueil, 31400 Toulouse, France
| | - B Jouault
- Laboratoire Charles Coulomb (L2C), UMR 5221 CNRS-Université de Montpellier, 34095 Montpellier, France
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Quantum Hall resistance standards from graphene grown by chemical vapour deposition on silicon carbide. Nat Commun 2015; 6:6806. [PMID: 25891533 PMCID: PMC4410644 DOI: 10.1038/ncomms7806] [Citation(s) in RCA: 67] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2014] [Accepted: 02/27/2015] [Indexed: 11/14/2022] Open
Abstract
Replacing GaAs by graphene to realize more practical quantum Hall resistance
standards (QHRS), accurate to within 10−9 in relative
value, but operating at lower magnetic fields than 10 T, is an ongoing
goal in metrology. To date, the required accuracy has been reported, only few times,
in graphene grown on SiC by Si sublimation, under higher magnetic fields. Here, we
report on a graphene device grown by chemical vapour deposition on SiC, which
demonstrates such accuracies of the Hall resistance from 10 T up to
19 T at 1.4 K. This is explained by a quantum Hall effect with
low dissipation, resulting from strongly localized bulk states at the magnetic
length scale, over a wide magnetic field range. Our results show that graphene-based
QHRS can replace their GaAs counterparts by operating in as-convenient cryomagnetic
conditions, but over an extended magnetic field range. They rely on a promising
hybrid and scalable growth method and a fabrication process achieving
low-electron-density devices. The quantum Hall effect in GaAs-based devices defines
resistance standards accurate to within one part in 10−9 at
magnetic fields close to 10 T. Here, Lafont et al. demonstrate such
accuracies over an extended magnetic field range at 1.4 K in chemically
vapour-deposited graphene on silicon carbide.
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Dodoo-Amoo NA, Saeed K, Mistry D, Khanna SP, Li L, Linfield EH, Davies AG, Cunningham JE. Non-universality of scaling exponents in quantum Hall transitions. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2014; 26:475801. [PMID: 25351842 DOI: 10.1088/0953-8984/26/47/475801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
We have investigated experimentally the scaling behaviour of quantum Hall transitions in GaAs/AlGaAs heterostructures of a range of mobility, carrier concentration, and spacer layer width. All three critical scaling exponents γ, κ and p were determined independently for each sample. We measure the localization length exponent to be γ ≈ 2.3, in good agreement with expected predictions from scaling theory, but κ and p are found to possess non-universal values. Results obtained for κ range from κ = 0.16 ± 0.02 to κ = 0.67 ± 0.02, and are found to be Landau level (LL) dependent, whereas p is found to decrease with increasing sample mobility. Our results demonstrate the existence of two transport regimes in the LL conductivity peak; universality is found within the quantum coherent transport regime present in the tails of the conductivity peak, but is absent within the classical transport regime found close to the critical point at the centre of the conductivity peak. We explain these results using a percolation model and show that the critical scaling exponent depends on certain important length scales that correspond to the microscopic description of electron transport in the bulk of a two-dimensional electron system.
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Affiliation(s)
- N A Dodoo-Amoo
- School of Electronic and Electrical Engineering, University of Leeds, Woodhouse Lane, Leeds, LS2 9JT,UK
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Zhang H, Bekyarova E, Huang JW, Zhao Z, Bao W, Wang F, Haddon RC, Lau CN. Aryl functionalization as a route to band gap engineering in single layer graphene devices. NANO LETTERS 2011; 11:4047-4051. [PMID: 21875083 DOI: 10.1021/nl200803q] [Citation(s) in RCA: 70] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Chemical functionalization is a promising route to band gap engineering of graphene. We chemically grafted nitrophenyl groups onto exfoliated single-layer graphene sheets in the form of substrate-supported or free-standing films. Our transport measurements demonstrate that nonsuspended functionalized graphene behaves as a granular metal, with variable range hopping transport and a mobility gap ∼0.1 eV at low temperature. For suspended graphene that allows functionalization on both surfaces, we demonstrate tuning of its electronic properties from a granular metal to a semiconductor in which transport occurs via thermal activation over a transport gap ∼80 meV from 4 to 300 K. This noninvasive and scalable functionalization technique paves the way for CMOS-compatible band gap engineering of graphene electronic devices.
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Affiliation(s)
- Hang Zhang
- Department of Physics and Astronomy, University of California , Riverside, California 92521, United States
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Steele GA, Ashoori RC, Pfeiffer LN, West KW. Imaging transport resonances in the quantum Hall effect. PHYSICAL REVIEW LETTERS 2005; 95:136804. [PMID: 16197165 DOI: 10.1103/physrevlett.95.136804] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/13/2005] [Indexed: 05/04/2023]
Abstract
We use a scanning capacitance probe to image transport in the quantum Hall system. Applying a dc bias voltage to the tip induces a ring-shaped incompressible strip (IS) in the 2D electron system (2DES) that moves with the tip. At certain tip positions, short-range disorder in the 2DES creates a quantum dot island in the IS. These islands enable resonant tunneling across the IS, enhancing its conductance by more than 4 orders of magnitude. The images provide a quantitative measure of disorder and suggest resonant tunneling as the primary mechanism for transport across ISs.
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Affiliation(s)
- G A Steele
- Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
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7
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Li W, Csáthy GA, Tsui DC, Pfeiffer LN, West KW. Scaling and universality of integer quantum Hall plateau-to-plateau transitions. PHYSICAL REVIEW LETTERS 2005; 94:206807. [PMID: 16090272 DOI: 10.1103/physrevlett.94.206807] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2004] [Indexed: 05/03/2023]
Abstract
We have investigated the integer quantum Hall plateau-to-plateau transition in two-dimensional electrons confined to AlxGa(1-x)As-Al0.33Ga0.67As heterostructures over a broad range of Al concentration x. For x between 0.65% and 1.6%, where the dominant contribution to disorder is from the short-range alloy potential fluctuations, we observe a perfect power-law scaling in the temperature range from 30 mK to 1 K with a critical exponent kappa = 0.42 +/- 0.01.
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Affiliation(s)
- Wanli Li
- Department of Physics, Princeton University, Princeton, New Jersey 08544, USA
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8
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Yang CL, Zudov MA, Knuuttila TA, Du RR, Pfeiffer LN, West KW. Observation of microwave-induced zero-conductance state in Corbino rings of a two-dimensional electron system. PHYSICAL REVIEW LETTERS 2003; 91:096803. [PMID: 14525201 DOI: 10.1103/physrevlett.91.096803] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2003] [Indexed: 05/24/2023]
Abstract
Using Corbino samples we have observed oscillatory dc conductance in a high-mobility two-dimensional electron system when it is subjected to crossed microwave and magnetic fields. At the strongest of the oscillation minima the conductance is found to be vanishingly small, indicating a macroscopic insulating state associated with this minimum. With increasing voltage bias, a crossover from Ohmic to electron-heating regime is observed.
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Affiliation(s)
- C L Yang
- Department of Physics, University of Utah, Salt Lake City, UT 84112, USA
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9
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Possanzini C, Fletcher R, Coleridge PT, Feng Y, Williams RL, Maan JC. Diffusion thermopower of a two-dimensional hole gas in SiGe in a quantum Hall insulating state. PHYSICAL REVIEW LETTERS 2003; 90:176601. [PMID: 12786087 DOI: 10.1103/physrevlett.90.176601] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2002] [Indexed: 05/24/2023]
Abstract
Both the temperature dependence of resistivity and thermopower of a two-dimensional hole gas in SiGe show a reentrant metal-insulator transition at filling factor nu=1.5, but with strikingly different behavior of the two coefficients. As the temperature is decreased in the insulating state, the resistivity diverges exponentially while the thermopower decreases rapidly, suggesting that the insulating state is due to the presence of a mobility edge rather than a gap at the Fermi energy.
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Affiliation(s)
- C Possanzini
- Research Institute for Materials, High Field Magnet Laboratory, University of Nijmegen, Toernooiveld 1, 6525 ED Nijmegen, The Netherlands
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10
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Hohls F, Zeitler U, Haug RJ. High frequency conductivity in the quantum hall regime. PHYSICAL REVIEW LETTERS 2001; 86:5124-5127. [PMID: 11384437 DOI: 10.1103/physrevlett.86.5124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2000] [Indexed: 05/23/2023]
Abstract
We have measured the complex conductivity sigma(xx) of a two-dimensional electron system in the quantum Hall regime up to frequencies of 6 GHz at electron temperatures below 100 mK. Using both its imaginary and real part we show that sigma(xx) can be scaled to a single function for different frequencies and several transitions between plateaus in the quantum Hall effect. Additionally, the conductivity in the variable-range hopping regime is used for a direct evaluation of the localization length xi. Even for large filling factor distances deltanu from the critical point we find xi approximately equals deltanu(-gamma) with a scaling exponent gamma = 2.3.
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Affiliation(s)
- F Hohls
- Institut für Festkörperphysik, Universität Hannover, Applestrasse 2, 30167 Hannover, Germany.
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11
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Wong LW, Jiang HW, Schaff WJ. Universality and phase diagram around half-filled Landau levels. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:R17323-R17326. [PMID: 9985948 DOI: 10.1103/physrevb.54.r17323] [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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12
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Sorensen ES, MacDonald AH. Integer quantum Hall effect in double-layer systems. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 54:10675-10687. [PMID: 9984864 DOI: 10.1103/physrevb.54.10675] [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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13
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Chow E, Wei HP, Girvin SM, Shayegan M. Phonon Emission from a 2D Electron Gas: Evidence of Transition to the Hydrodynamic Regime. PHYSICAL REVIEW LETTERS 1996; 77:1143-1146. [PMID: 10063001 DOI: 10.1103/physrevlett.77.1143] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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14
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Polyakov DG. Spin-flip scattering in the quantum Hall regime. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:15777-15788. [PMID: 9983414 DOI: 10.1103/physrevb.53.15777] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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15
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Heinonen O, Johnson MD. Integer quantum Hall effect for hard-core bosons and a failure of bosonic Chern-Simons mean-field theories for electrons at a half-filled Landau level. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:1517-1521. [PMID: 9983614 DOI: 10.1103/physrevb.53.1517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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16
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Ruzin IM, Cooper NR, Halperin BI. Nonuniversal behavior of finite quantum Hall systems as a result of weak macroscopic inhomogeneities. PHYSICAL REVIEW. B, CONDENSED MATTER 1996; 53:1558-1572. [PMID: 9983619 DOI: 10.1103/physrevb.53.1558] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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17
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Chow E, Wei HP. Experiments on inelastic scattering in the integer quantum Hall effect. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:13749-13752. [PMID: 9980580 DOI: 10.1103/physrevb.52.13749] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Brandes T. Inelastic scattering, multifractality, and scaling in the integer quantum Hall effect. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:8391-8399. [PMID: 9979843 DOI: 10.1103/physrevb.52.8391] [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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Hanna CB, Arovas DP, Mullen K, Girvin SM. Effect of spin degeneracy on scaling in the quantum Hall regime. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 52:5221-5232. [PMID: 9981707 DOI: 10.1103/physrevb.52.5221] [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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Cleve B, Hartenstein B, Baranovskii SD, Scheidler M, Thomas P, Baessler H. High-field hopping transport in band tails of disordered semiconductors. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:16705-16713. [PMID: 9978676 DOI: 10.1103/physrevb.51.16705] [Citation(s) in RCA: 21] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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21
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Bleibaum O, Böttger H, Bryksin VV, Schulz F. Hopping transport in a magnetic field: Kadanoff-Baym-Keldysh approach and magnetoconductivity. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:14020-14034. [PMID: 9978327 DOI: 10.1103/physrevb.51.14020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Kravchenko SV, Mason WE, Bowker GE, Furneaux JE, Pudalov VM, D'Iorio M. Scaling of an anomalous metal-insulator transition in a two-dimensional system in silicon at B=0. PHYSICAL REVIEW. B, CONDENSED MATTER 1995; 51:7038-7045. [PMID: 9977262 DOI: 10.1103/physrevb.51.7038] [Citation(s) in RCA: 215] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Glozman I, Johnson C, Jiang H. Fate of the Delocalized States in a Vanishing Magnetic Field. PHYSICAL REVIEW LETTERS 1995; 74:594-597. [PMID: 10058797 DOI: 10.1103/physrevlett.74.594] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Wei HP, Engel LW, Tsui DC. Current scaling in the integer quantum Hall effect. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:14609-14612. [PMID: 9975690 DOI: 10.1103/physrevb.50.14609] [Citation(s) in RCA: 41] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Polyakov DG, Shklovskii BI. Activated conductivity in the quantum Hall effect. PHYSICAL REVIEW LETTERS 1994; 73:1150-1153. [PMID: 10057637 DOI: 10.1103/physrevlett.73.1150] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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26
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Lee DK, Chalker JT, Ko DY. Localization in a random magnetic field: The semiclassical limit. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:5272-5285. [PMID: 9976868 DOI: 10.1103/physrevb.50.5272] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Boisen A, Boggild P, Kristensen A, Lindelof PE. Nonlinear current-voltage characteristics at quantum Hall resistance minima. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:1957-1960. [PMID: 9976390 DOI: 10.1103/physrevb.50.1957] [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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Dykhne AM, Ruzin IM. Theory of the fractional quantum Hall effect: The two-phase model. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 50:2369-2379. [PMID: 9976455 DOI: 10.1103/physrevb.50.2369] [Citation(s) in RCA: 57] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Brandes T, Schweitzer L, Kramer B. Multifractal wave functions and inelastic scattering in the integer quantum Hall effect. PHYSICAL REVIEW LETTERS 1994; 72:3582-3585. [PMID: 10056236 DOI: 10.1103/physrevlett.72.3582] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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30
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Aleiner IL, Shklovskii BI. Effect of screening of the Coulomb interaction on the conductivity in the quantum Hall regime. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:13721-13727. [PMID: 10010316 DOI: 10.1103/physrevb.49.13721] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Shimshoni E, Sondhi SL. Quantum Hall effect in Coulomb drag: Interlayer friction in strong magnetic fields. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:11484-11487. [PMID: 10010011 DOI: 10.1103/physrevb.49.11484] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Laikhtman B. Anomalous classical diffusion of high mobility 2D electron gas in magnetic field. PHYSICAL REVIEW LETTERS 1994; 72:1060-1063. [PMID: 10056607 DOI: 10.1103/physrevlett.72.1060] [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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Geim AK, Main PC, Taboryski R, Veje E, Carmona HA, Brown CV, Foster TJ, Eaves L. Reflection of ballistic electrons from diffusive regions. PHYSICAL REVIEW. B, CONDENSED MATTER 1994; 49:2265-2268. [PMID: 10011054 DOI: 10.1103/physrevb.49.2265] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Polyakov DG, Shklovskii BI. Conductivity-peak broadening in the quantum Hall regime. PHYSICAL REVIEW. B, CONDENSED MATTER 1993; 48:11167-11175. [PMID: 10007424 DOI: 10.1103/physrevb.48.11167] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Yang S, MacDonald AH. Coulomb gaps in a strong magnetic field. PHYSICAL REVIEW LETTERS 1993; 70:4110-4113. [PMID: 10054049 DOI: 10.1103/physrevlett.70.4110] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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