1
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Sahakyan M, Tran V. The density functional theory study of substitution effect in antiferromagnetic USn05Sb15. J SOLID STATE CHEM 2022. [DOI: 10.1016/j.jssc.2022.123174] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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2
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Giannakis I, Leshen J, Kavai M, Ran S, Kang CJ, Saha SR, Zhao Y, Xu Z, Lynn JW, Miao L, Wray LA, Kotliar G, Butch NP, Aynajian P. Orbital-selective Kondo lattice and enigmatic f electrons emerging from inside the antiferromagnetic phase of a heavy fermion. SCIENCE ADVANCES 2019; 5:eaaw9061. [PMID: 31667341 PMCID: PMC6799987 DOI: 10.1126/sciadv.aaw9061] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2019] [Accepted: 09/25/2019] [Indexed: 05/25/2023]
Abstract
Novel electronic phenomena frequently form in heavy-fermions because of the mutual localized and itinerant nature of f-electrons. On the magnetically ordered side of the heavy-fermion phase diagram, f-moments are expected to be localized and decoupled from the Fermi surface. It remains ambiguous whether Kondo lattice can develop inside the magnetically ordered phase. Using spectroscopic imaging with scanning tunneling microscope, complemented by neutron scattering, x-ray absorption spectroscopy, and dynamical mean field theory, we probe the electronic states in antiferromagnetic USb2. We visualize a large gap in the antiferromagnetic phase within which Kondo hybridization develops below ~80 K. Our calculations indicate the antiferromagnetism and Kondo lattice to reside predominantly on different f-orbitals, promoting orbital selectivity as a new conception into how these phenomena coexist in heavy-fermions. Finally, at 45 K, we find a novel first order-like transition through abrupt emergence of nontrivial 5f-electronic states that may resemble the "hidden-order" phase of URu2Si2.
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Affiliation(s)
- Ioannis Giannakis
- Department of Physics, Applied Physics, and Astronomy, Binghamton University, Binghamton, NY 13902, USA
| | - Justin Leshen
- Department of Physics, Applied Physics, and Astronomy, Binghamton University, Binghamton, NY 13902, USA
| | - Mariam Kavai
- Department of Physics, Applied Physics, and Astronomy, Binghamton University, Binghamton, NY 13902, USA
| | - Sheng Ran
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
- Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD 20742, USA
| | - Chang-Jong Kang
- Department of Physics and Astronomy, Rutgers University, NJ 08854, USA
| | - Shanta R. Saha
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
- Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD 20742, USA
| | - Y. Zhao
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
- Department of Materials Science and Engineering, University of Maryland, College Park, MD 20742, USA
| | - Z. Xu
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - J. W. Lynn
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Lin Miao
- Department of Physics, New York University, New York, NY 10003, USA
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - L. Andrew Wray
- Department of Physics, New York University, New York, NY 10003, USA
| | - Gabriel Kotliar
- Department of Physics and Astronomy, Rutgers University, NJ 08854, USA
- Condensed Matter Physics and Materials Science Department, Brookhaven National Laboratory, Upton, NY 11973, USA
| | - Nicholas P. Butch
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
- Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD 20742, USA
| | - Pegor Aynajian
- Department of Physics, Applied Physics, and Astronomy, Binghamton University, Binghamton, NY 13902, USA
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3
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Chen QY, Luo XB, Xie DH, Li ML, Ji XY, Zhou R, Huang YB, Zhang W, Feng W, Zhang Y, Huang L, Hao QQ, Liu Q, Zhu XG, Liu Y, Zhang P, Lai XC, Si Q, Tan SY. Orbital-Selective Kondo Entanglement and Antiferromagnetic Order in USb_{2}. PHYSICAL REVIEW LETTERS 2019; 123:106402. [PMID: 31573295 DOI: 10.1103/physrevlett.123.106402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2019] [Revised: 07/22/2019] [Indexed: 06/10/2023]
Abstract
In heavy-fermion compounds, the dual character of f electrons underlies their rich and often exotic properties like fragile heavy quasiparticles, a variety of magnetic orders and unconventional superconductivity. 5f-electron actinide materials provide a rich setting to elucidate the larger and outstanding issue of the competition between magnetic order and Kondo entanglement and, more generally, the interplay among different channels of interactions in correlated electron systems. Here, by using angle-resolved photoemission spectroscopy, we present the detailed electronic structure of USb_{2} and observe two different kinds of nearly flat bands in the antiferromagnetic state of USb_{2}. Polarization-dependent measurements show that these electronic states are derived from 5f orbitals with different characters; in addition, further temperature-dependent measurements reveal that one of them is driven by the Kondo correlations between the 5f electrons and conduction electrons, while the other reflects the dominant role of the magnetic order. Our results on the low-energy electronic excitations of USb_{2} implicate orbital selectivity as an important new ingredient for the competition between Kondo correlations and magnetic order and, by extension, in the rich landscape of quantum phases for strongly correlated f electron systems.
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Affiliation(s)
- Q Y Chen
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - X B Luo
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - D H Xie
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - M L Li
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - X Y Ji
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - R Zhou
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - Y B Huang
- Shanghai Institute of Applied Physics, CAS, Shanghai, 201204, China
| | - W Zhang
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - W Feng
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - Y Zhang
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - L Huang
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - Q Q Hao
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - Q Liu
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - X G Zhu
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - Y Liu
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - P Zhang
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - X C Lai
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
| | - Q Si
- Department of Physics and Astronomy and Rice Center for Quantum Materials, Rice University, Houston, Texas 77005, USA
| | - S Y Tan
- Science and Technology on Surface Physics and Chemistry Laboratory, Mianyang 621908, China
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4
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Miao L, Basak R, Ran S, Xu Y, Kotta E, He H, Denlinger JD, Chuang YD, Zhao Y, Xu Z, Lynn JW, Jeffries JR, Saha SR, Giannakis I, Aynajian P, Kang CJ, Wang Y, Kotliar G, Butch NP, Wray LA. High temperature singlet-based magnetism from Hund's rule correlations. Nat Commun 2019; 10:644. [PMID: 30733441 PMCID: PMC6367396 DOI: 10.1038/s41467-019-08497-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2018] [Accepted: 01/10/2019] [Indexed: 11/24/2022] Open
Abstract
Uranium compounds can manifest a wide range of fascinating many-body phenomena, and are often thought to be poised at a crossover between localized and itinerant regimes for 5f electrons. The antiferromagnetic dipnictide USb2 has been of recent interest due to the discovery of rich proximate phase diagrams and unusual quantum coherence phenomena. Here, linear-dichroic X-ray absorption and elastic neutron scattering are used to characterize electronic symmetries on uranium in USb2 and isostructural UBi2. Of these two materials, only USb2 is found to enable strong Hund’s rule alignment of local magnetic degrees of freedom, and to undergo distinctive changes in local atomic multiplet symmetry across the magnetic phase transition. Theoretical analysis reveals that these and other anomalous properties of the material may be understood by attributing it as the first known high temperature realization of a singlet ground state magnet, in which magnetism occurs through a process that resembles exciton condensation. Electrons in uranium-based materials are often on the border between localised and itinerant behaviour, which can lead to unusual magnetic behaviour. Here the authors combine experiment and theory to show that USb2 may be an unusually high temperature example of a singlet-ground-state magnet.
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Affiliation(s)
- Lin Miao
- Department of Physics, New York University, New York, NY, 10003, USA.,Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Rourav Basak
- Department of Physics, New York University, New York, NY, 10003, USA
| | - Sheng Ran
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - Yishuai Xu
- Department of Physics, New York University, New York, NY, 10003, USA
| | - Erica Kotta
- Department of Physics, New York University, New York, NY, 10003, USA
| | - Haowei He
- Department of Physics, New York University, New York, NY, 10003, USA
| | - Jonathan D Denlinger
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Yi-De Chuang
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 94720, USA
| | - Y Zhao
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA.,Department of Materials Science and Engineering, University of Maryland, College Park, MD, 20742, USA
| | - Z Xu
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - J W Lynn
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA
| | - J R Jeffries
- Materials Science Division, Lawrence Livermore National Laboratory, Livermore, CA, 94550, USA
| | - S R Saha
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA.,Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD, 20742, USA
| | - Ioannis Giannakis
- Department of Physics, Applied Physics and Astronomy, Binghamton University, Binghamton, NY, 13902, USA
| | - Pegor Aynajian
- Department of Physics, Applied Physics and Astronomy, Binghamton University, Binghamton, NY, 13902, USA
| | - Chang-Jong Kang
- Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, 08854-8019, USA
| | - Yilin Wang
- Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, NY, 11973, USA
| | - Gabriel Kotliar
- Department of Physics and Astronomy, Rutgers University, Piscataway, NJ, 08854-8019, USA
| | - Nicholas P Butch
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, MD, 20899, USA.,Center for Nanophysics and Advanced Materials, Department of Physics, University of Maryland, College Park, MD, 20742, USA
| | - L Andrew Wray
- Department of Physics, New York University, New York, NY, 10003, USA.
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5
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Ghasemikhah E, Jalali Asadabadi S, Ahmad I, Yazdani-Kacoei M. Ab initio studies of electric field gradients and magnetic properties of uranium dipnicties. RSC Adv 2015. [DOI: 10.1039/c5ra02881g] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
In this paper, we explore the electric field gradients (EFGs) at 238U sites for antiferromagnetic UX2 (X = P, As, Sb, Bi) dipnicties using LDA, LDA + U, GGA, GGA + U, and EECE schemes in the presence of spin–orbit coupling.
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Affiliation(s)
- E. Ghasemikhah
- Department of Physics
- Faculty of Science
- University of Isfahan (UI)
- Isfahan 81746-73441
- Iran
| | - S. Jalali Asadabadi
- Department of Physics
- Faculty of Science
- University of Isfahan (UI)
- Isfahan 81746-73441
- Iran
| | - Iftikhar Ahmad
- Center for Computational Materials Science
- University of Malakand
- Chakdara
- Pakistan
- Department of Physics
| | - M. Yazdani-Kacoei
- Department of Physics
- Faculty of Science
- University of Isfahan (UI)
- Isfahan 81746-73441
- Iran
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6
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Qi J, Durakiewicz T, Trugman SA, Zhu JX, Riseborough PS, Baumbach R, Bauer ED, Gofryk K, Meng JQ, Joyce JJ, Taylor AJ, Prasankumar RP. Measurement of two low-temperature energy gaps in the electronic structure of antiferromagnetic USb2 using ultrafast optical spectroscopy. PHYSICAL REVIEW LETTERS 2013; 111:057402. [PMID: 23952443 DOI: 10.1103/physrevlett.111.057402] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2013] [Indexed: 06/02/2023]
Abstract
Ultrafast optical spectroscopy is used to study the antiferromagnetic f-electron system USb(2). We observe the opening of two charge gaps at low temperatures (</~45 K), arising from renormalization of the electronic structure. Analysis of our data indicates that one gap is due to hybridization between localized f-electron and conduction electron bands, while band renormalization involving magnons leads to the emergence of the second gap. These experiments thus enable us to shed light on the complex electronic structure emerging at the Fermi surface in f-electron systems.
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Affiliation(s)
- J Qi
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
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7
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Wells DM, Ringe E, Kaczorowski D, Gnida D, André G, Haire RG, Ellis DE, Ibers JA. Structure, Properties, and Theoretical Electronic Structure of UCuOP and NpCuOP. Inorg Chem 2010; 50:576-89. [DOI: 10.1021/ic101665g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Daniel M. Wells
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
- Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - Emilie Ringe
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - D. Kaczorowski
- Institue of Low Temperature and Structure Research, Polish Academy of Sciences, 50-950 Wroclaw, Poland
| | - D. Gnida
- Institue of Low Temperature and Structure Research, Polish Academy of Sciences, 50-950 Wroclaw, Poland
| | - G. André
- Laboratoire Léon Brillouin, CE-Saclay, 91191 Gif sur Yvette Cedex, France
| | - Richard G. Haire
- Chemical Science Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Donald E. Ellis
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
- Materials Research Center, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
- Department of Physics & Astronomy, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
| | - James A. Ibers
- Department of Chemistry, Northwestern University, 2145 Sheridan Road, Evanston, Illinois 60208-3113, United States
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8
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Aoki D, Bourdarot F, Hassinger E, Knebel G, Miyake A, Raymond S, Taufour V, Flouquet J. Field re-entrant hidden-order phase under pressure in URu2Si2. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2010; 22:164205. [PMID: 21386411 DOI: 10.1088/0953-8984/22/16/164205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
We succeeded in growing high quality single crystals of URu(2)Si(2) and performed thermal expansion measurements under pressure. Applying a magnetic field along the [001] direction in the tetragonal structure, the so-called hidden-order phase reappears after the suppression of the antiferromagnetic phase above the critical pressure P(x). We determined the pressure-temperature-field phase diagram for the paramagnetic, hidden-order and antiferromagnetic states for the [Formula: see text] direction. We also present the temperature dependence of the upper critical field H(c2) for [Formula: see text] and [100] determined by the AC specific heat measurements, corresponding to the bulk superconductivity in a high quality single crystal.
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Affiliation(s)
- D Aoki
- INAC/SPSMS, CEA-Grenoble, 17 rue des Martyrs, F-38054 Grenoble, France.
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9
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Tran V, Bukowski Z, Ste¸pień-Damm J, Troć R. Antiferromagnetic ordering with an anisotropy reversal in. J SOLID STATE CHEM 2006. [DOI: 10.1016/j.jssc.2006.01.072] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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