Reduction of the low-temperature bulk gap in samarium hexaboride under high magnetic fields
Abstract
SmB6 exhibits a small (15–20 meV) band gap at low temperatures due to hybridized d and f electrons, a tiny (3 meV) transport activation energy EA above 4 K, and surface states accessible to transport below 2 K. We study its magnetoresistance in 60-T pulsed fields between 1.5 and 4 K. The response of the nearly T independent surface states (which show no Shubnikov–de Haas oscillations) is distinct from that of the activated bulk. EA shrinks by 50% under fields up to 60 T. Data up to 93 T suggest that this trend continues beyond 100 T, in contrast to previous explanations. It rules out emerging theories to explain observed exotic magnetic quantum oscillations.
- Authors:
-
[2];
- Univ. of Michigan, Ann Arbor, MI (United States). Dept. of Physics
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of California, Irvine, CA (United States). Dept. of Physics and Astronomy
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- OSTI Identifier:
- 1369188
- Alternate Identifier(s):
- OSTI ID: 1363837
- Report Number(s):
- LA-UR-16-28420
Journal ID: ISSN 2469-9950; TRN: US1702756
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 95; Journal Issue: 24; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; High Magnetic Field Science
Citation Formats
Wolgast, S., Jaime, Marcelo, Balakirev, Fedor Fedorovich, Eo, Y. S., Sun, K., Kurdak, C., Kim, D.-J., and Fisk, Z. Reduction of the low-temperature bulk gap in samarium hexaboride under high magnetic fields. United States: N. p., 2017.
Web. doi:10.1103/PhysRevB.95.245112.
Wolgast, S., Jaime, Marcelo, Balakirev, Fedor Fedorovich, Eo, Y. S., Sun, K., Kurdak, C., Kim, D.-J., & Fisk, Z. Reduction of the low-temperature bulk gap in samarium hexaboride under high magnetic fields. United States. https://doi.org/10.1103/PhysRevB.95.245112
Wolgast, S., Jaime, Marcelo, Balakirev, Fedor Fedorovich, Eo, Y. S., Sun, K., Kurdak, C., Kim, D.-J., and Fisk, Z. Tue .
"Reduction of the low-temperature bulk gap in samarium hexaboride under high magnetic fields". United States. https://doi.org/10.1103/PhysRevB.95.245112. https://www.osti.gov/servlets/purl/1369188.
@article{osti_1369188,
title = {Reduction of the low-temperature bulk gap in samarium hexaboride under high magnetic fields},
author = {Wolgast, S. and Jaime, Marcelo and Balakirev, Fedor Fedorovich and Eo, Y. S. and Sun, K. and Kurdak, C. and Kim, D.-J. and Fisk, Z.},
abstractNote = {SmB6 exhibits a small (15–20 meV) band gap at low temperatures due to hybridized d and f electrons, a tiny (3 meV) transport activation energy EA above 4 K, and surface states accessible to transport below 2 K. We study its magnetoresistance in 60-T pulsed fields between 1.5 and 4 K. The response of the nearly T independent surface states (which show no Shubnikov–de Haas oscillations) is distinct from that of the activated bulk. EA shrinks by 50% under fields up to 60 T. Data up to 93 T suggest that this trend continues beyond 100 T, in contrast to previous explanations. It rules out emerging theories to explain observed exotic magnetic quantum oscillations.},
doi = {10.1103/PhysRevB.95.245112},
journal = {Physical Review B},
number = 24,
volume = 95,
place = {United States},
year = {Tue Jun 13 00:00:00 EDT 2017},
month = {Tue Jun 13 00:00:00 EDT 2017}
}
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Works referenced in this record:
Fractionalized Fermi liquid on the surface of a topological Kondo insulator
journal, March 2016
- Thomson, Alex; Sachdev, Subir
- Physical Review B, Vol. 93, Issue 12
Quantum Oscillations without a Fermi Surface and the Anomalous de Haas–van Alphen Effect
journal, September 2015
- Knolle, Johannes; Cooper, Nigel R.
- Physical Review Letters, Vol. 115, Issue 14
Topological Kondo Insulators
journal, March 2010
- Dzero, Maxim; Sun, Kai; Galitski, Victor
- Physical Review Letters, Vol. 104, Issue 10
Surface and bulk electronic structure of the strongly correlated system SmB and implications for a topological Kondo insulator
journal, September 2013
- Xu, N.; Shi, X.; Biswas, P. K.
- Physical Review B, Vol. 88, Issue 12
Pulsed magnetic field study of the spin gap in intermediate valence compound SmB 6
journal, October 2009
- Flachbart, K.; Bartkowiak, M.; Demishev, S.
- Physica B: Condensed Matter, Vol. 404, Issue 19
Two-dimensional Fermi surfaces in Kondo insulator SmB 6
journal, December 2014
- Li, G.; Xiang, Z.; Yu, F.
- Science, Vol. 346, Issue 6214
Sm : Kondo Insulator or Exotic Metal?
journal, February 1995
- Cooley, J. C.; Aronson, M. C.; Fisk, Z.
- Physical Review Letters, Vol. 74, Issue 9
Ground state formation in intermediate valent SmB6
journal, January 2001
- Flachbart, K.
- Physica B: Condensed Matter, Vol. 293, Issue 3-4
An electron paramagnetic resonance study on Sm 3+ and Yb 3+ in KY 3 F 10 crystals
journal, September 2000
- Yamaga, M.; Honda, M.; Wells, J-P R.
- Journal of Physics: Condensed Matter, Vol. 12, Issue 40
Surface Hall Effect and Nonlocal Transport in SmB6: Evidence for Surface Conduction
journal, November 2013
- Kim, D. J.; Thomas, S.; Grant, T.
- Scientific Reports, Vol. 3, Issue 1
Field-Induced Metallic State in YbB 12 under High Magnetic Field
journal, November 1988
- Sugiyama, Kiyohiro; Iga, Fumitoshi; Kasaya, Mitsuo
- Journal of the Physical Society of Japan, Vol. 57, Issue 11
One-dimensional edge state transport in a topological Kondo insulator
journal, November 2015
- Nakajima, Yasuyuki; Syers, Paul; Wang, Xiangfeng
- Nature Physics, Vol. 12, Issue 3
Magnetic and Semiconducting Properties of Sm
journal, February 1969
- Menth, A.; Buehler, E.; Geballe, T. H.
- Physical Review Letters, Vol. 22, Issue 7
Properties of the in-gap states in SmB6
journal, March 2001
- Gabáni, S.; Flachbart, K.; Konovalova, E.
- Solid State Communications, Vol. 117, Issue 11
Unconventional Fermi surface in an insulating state
journal, July 2015
- Tan, B. S.; Hsu, Y. - T.; Zeng, B.
- Science, Vol. 349, Issue 6245
Surface electronic structure of the topological Kondo-insulator candidate correlated electron system SmB6
journal, December 2013
- Neupane, M.; Alidoust, N.; Xu, S-Y.
- Nature Communications, Vol. 4, Issue 1
Magnetotransport measurements of the surface states of samarium hexaboride using Corbino structures
journal, September 2015
- Wolgast, S.; Eo, Y. S.; Öztürk, T.
- Physical Review B, Vol. 92, Issue 11
Magnetoresistance evidence of a surface state and a field-dependent insulating state in the Kondo insulator
journal, May 2015
- Chen, F.; Shang, C.; Jin, Z.
- Physical Review B, Vol. 91, Issue 20
Correlated Topological Insulators with Mixed Valence
journal, February 2013
- Lu, Feng; Zhao, JianZhou; Weng, Hongming
- Physical Review Letters, Vol. 110, Issue 9
Weak antilocalization and linear magnetoresistance in the surface state of
journal, November 2016
- Thomas, S.; Kim, D. J.; Chung, S. B.
- Physical Review B, Vol. 94, Issue 20
Tuning Bulk and Surface Conduction in the Proposed Topological Kondo Insulator
journal, March 2015
- Syers, Paul; Kim, Dohun; Fuhrer, Michael S.
- Physical Review Letters, Vol. 114, Issue 9
SmB 6 : A Promising Candidate for a Topological Insulator
journal, December 2011
- Takimoto, Tetsuya
- Journal of the Physical Society of Japan, Vol. 80, Issue 12
Quantum Oscillation in Narrow-Gap Topological Insulators
journal, January 2016
- Zhang, Long; Song, Xue-Yang; Wang, Fa
- Physical Review Letters, Vol. 116, Issue 4
Low-temperature surface conduction in the Kondo insulator SmB
journal, November 2013
- Wolgast, Steven; Kurdak, Çağlıyan; Sun, Kai
- Physical Review B, Vol. 88, Issue 18
Kondo Breakdown and Quantum Oscillations in
journal, January 2016
- Erten, Onur; Ghaemi, Pouyan; Coleman, Piers
- Physical Review Letters, Vol. 116, Issue 4
Photoionization hole burning and nonlinear Zeeman effect in CaF_2:Sm^2+
journal, January 1984
- Macfarlane, R. M.; Shelby, R. M.
- Optics Letters, Vol. 9, Issue 12
Energy gap of intermediate-valent studied by point-contact spectroscopy
journal, August 2001
- Flachbart, K.; Gloos, K.; Konovalova, E.
- Physical Review B, Vol. 64, Issue 8
Low-energy electrodynamics of
journal, January 1999
- Gorshunov, B.; Sluchanko, N.; Volkov, A.
- Physical Review B, Vol. 59, Issue 3
Momentum-dependent hybridization gap and dispersive in-gap state of the Kondo semiconductor SmB
journal, August 2012
- Miyazaki, Hidetoshi; Hajiri, Tetsuya; Ito, Takahiro
- Physical Review B, Vol. 86, Issue 7
Chemical potential asymmetry and quantum oscillations in insulators
journal, September 2016
- Pal, Hridis K.; Piéchon, Frédéric; Fuchs, Jean-Noël
- Physical Review B, Vol. 94, Issue 12
Direct observation of the spin texture in SmB6 as evidence of the topological Kondo insulator
journal, July 2014
- Xu, N.; Biswas, P. K.; Dil, J. H.
- Nature Communications, Vol. 5, Issue 1
High Field Gap Closure in the Kondo Insulator SmB6
journal, February 1999
- Cooley, J. C.; Mielke, C. H.; Hults, W. L.
- Journal of Superconductivity, Vol. 12, Issue 1, p. 171-173
Polarized laser excitation, electron paramagnetic resonance, and crystal-field analyses of -doped
journal, August 1999
- Wells, J. -P. R.; Yamaga, M.; Han, T. P. J.
- Physical Review B, Vol. 60, Issue 6
Hybridization, Inter-Ion Correlation, and Surface States in the Kondo Insulator
journal, February 2013
- Zhang, Xiaohang; Butch, N. P.; Syers, P.
- Physical Review X, Vol. 3, Issue 1
Ultrahigh-resolution and angle-resolved photoemission study of SmB6
journal, June 2002
- Nozawa, S.; Tsukamoto, T.; Kanai, K.
- Journal of Physics and Chemistry of Solids, Vol. 63, Issue 6-8
Observation of possible topological in-gap surface states in the Kondo insulator SmB6 by photoemission
journal, December 2013
- Jiang, J.; Li, S.; Zhang, T.
- Nature Communications, Vol. 4, Issue 1
Large low-temperature Hall effect and resistivity in mixed-valent Sm
journal, December 1979
- Allen, J. W.; Batlogg, B.; Wachter, P.
- Physical Review B, Vol. 20, Issue 12
Topological Kondo Insulators
journal, March 2016
- Dzero, Maxim; Xia, Jing; Galitski, Victor
- Annual Review of Condensed Matter Physics, Vol. 7, Issue 1
Surface electronic structure of the topological Kondo insulator candidate correlated electron system SmB6
text, January 2013
- Neupane, Madhab; Alidoust, Nasser; Xu, SuYang
- arXiv
Quantum oscillations without a Fermi surface and the anomalous de Haas-van Alphen effect
text, January 2015
- Knolle, Johannes; Cooper, Nigel R.
- arXiv
Unconventional Fermi surface in an insulating state
text, January 2015
- Tan, B. S.; Hsu, Y. -T.; Zeng, B.
- arXiv
Fractionalized Fermi liquid on the surface of a topological Kondo insulator
text, January 2015
- Thomson, Alex; Sachdev, Subir
- arXiv
Chemical potential asymmetry and quantum oscillations in insulators
text, January 2016
- Pal, Hridis K.; Piéchon, Frédéric; Fuchs, Jean-Noël
- arXiv
Works referencing / citing this record:
Perfect Andreev reflection due to the Klein paradox in a topological superconducting state
journal, June 2019
- Lee, Seunghun; Stanev, Valentin; Zhang, Xiaohang
- Nature, Vol. 570, Issue 7761
Fermi surfaces in Kondo insulators
journal, March 2018
- Liu, Hsu; Hartstein, Máté; Wallace, Gregory J.
- Journal of Physics: Condensed Matter, Vol. 30, Issue 16