Low-temperature conducting state in two candidate topological Kondo insulators: SmB6 and Ce3Bi4Pt3

Wakeham, N.; Rosa, P. F.  S.; Wang, Y. Q.; Kang, M.; Fisk, Z.; Ronning, F.; Thompson, J. D.

doi:10.1103/PhysRevB.94.035127

Title: Low-temperature conducting state in two candidate topological Kondo insulators: ${SmB}_{6}$ and ${Ce}_{3} {Bi}_{4} {Pt}_{3}$

Abstract

We have investigated the low temperature conducting state of two Kondo insulators, SmB₆ and Ce₃Bi₄Pt₃, which have been theoretically predicted to host topological surface states. Through comparison of the speci c heat of as-grown and powdered single crystals of SmB₆, we show that the residual term that is linear in temperature is not dominated by any surface state contribution, but rather is a bulk property. In Ce₃Bi₄Pt₃, we find that the Hall coefficient is independent of sample thickness, which indicates that conduction at low temperatures is dominated by the bulk of the sample, and not by a surface state. The low temperature resistivity of Ce₃Bi₄Pt₃ is found to monotonically decrease with low concentrations of disorder introduced through ion-irradiation. This is in contrast to SmB₆, which is again indicative of the contrasting origins of the low temperature conduction. In SmB₆, we also show that the effect of low concentrations of irradiation damage of the surface with Fe⁺ ions is qualitatively consistent with damage with non-magnetic ions.

Authors:

Wakeham, N. ^[1]; Rosa, P. F. S. ^[1]; Wang, Y. Q. ^[1]; Kang, M. ^[1]; Fisk, Z. ^[2]; Ronning, F. ^[1]; Thompson, J. D. ^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Univ. of California, Irvine, CA (United States)

Publication Date:: 2016-07-12

Research Org.:: Los Alamos National Lab. (LANL), Los Alamos, NM (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1414091

Alternate Identifier(s):: OSTI ID: 1261700

Report Number(s):: LA-UR-16-22744
Journal ID: ISSN 2469-9950; PRBMDO; TRN: US1800626

Grant/Contract Number:: AC52-06NA25396

Resource Type:: Accepted Manuscript

Journal Name:: Physical Review B

Additional Journal Information:: Journal Volume: 94; Journal Issue: 3; Journal ID: ISSN 2469-9950

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

Subject:: 36 MATERIALS SCIENCE

Citation Formats


                    Wakeham, N., Rosa, P. F.  S., Wang, Y. Q., Kang, M., Fisk, Z., Ronning, F., and Thompson, J. D.. Low-temperature conducting state in two candidate topological Kondo insulators: SmB6 and Ce3Bi4Pt3.  United States: N. p., 2016. 
Web.  https://doi.org/10.1103/PhysRevB.94.035127.

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                    Wakeham, N., Rosa, P. F.  S., Wang, Y. Q., Kang, M., Fisk, Z., Ronning, F., & Thompson, J. D.. Low-temperature conducting state in two candidate topological Kondo insulators: SmB6 and Ce3Bi4Pt3.  United States.  https://doi.org/10.1103/PhysRevB.94.035127

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                    Wakeham, N., Rosa, P. F.  S., Wang, Y. Q., Kang, M., Fisk, Z., Ronning, F., and Thompson, J. D.. Tue .  
"Low-temperature conducting state in two candidate topological Kondo insulators: SmB6 and Ce3Bi4Pt3".  United States.  https://doi.org/10.1103/PhysRevB.94.035127.  https://www.osti.gov/servlets/purl/1414091.

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@article{osti_1414091,

  title        = {Low-temperature conducting state in two candidate topological Kondo insulators: SmB6 and Ce3Bi4Pt3},

  author       = {Wakeham, N. and Rosa, P. F.  S. and Wang, Y. Q. and Kang, M. and Fisk, Z. and Ronning, F. and Thompson, J. D.},

  abstractNote = {We have investigated the low temperature conducting state of two Kondo insulators, SmB6 and Ce3Bi4Pt3, which have been theoretically predicted to host topological surface states. Through comparison of the speci c heat of as-grown and powdered single crystals of SmB6, we show that the residual term that is linear in temperature is not dominated by any surface state contribution, but rather is a bulk property. In Ce3Bi4Pt3, we find that the Hall coefficient is independent of sample thickness, which indicates that conduction at low temperatures is dominated by the bulk of the sample, and not by a surface state. The low temperature resistivity of Ce3Bi4Pt3 is found to monotonically decrease with low concentrations of disorder introduced through ion-irradiation. This is in contrast to SmB6, which is again indicative of the contrasting origins of the low temperature conduction. In SmB6, we also show that the effect of low concentrations of irradiation damage of the surface with Fe+ ions is qualitatively consistent with damage with non-magnetic ions.},

  doi          = {10.1103/PhysRevB.94.035127},

  journal      = {Physical Review B},

  number       = 3,

  volume       = 94,

  place        = {United States},

  year         = {2016},

  month        = {7}

}

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Works referenced in this record:

The effect of magnetic and non-magnetic ion damage on the surface state in SmB6
journal, February 2016

Wakeham, N.; Wen, J.; Wang, Y. Q.
Journal of Magnetism and Magnetic Materials, Vol. 400
DOI: 10.1016/j.jmmm.2015.07.045

Closing the spin gap in the Kondo insulator Ce3Bi4Pt3 at high magnetic fields
journal, May 2000

Jaime, Marcelo; Movshovich, Roman; Stewart, Gregory R.
Nature, Vol. 405, Issue 6783
DOI: 10.1038/35012027

Topological Kondo Insulators
journal, March 2010

Dzero, Maxim; Sun, Kai; Galitski, Victor
Physical Review Letters, Vol. 104, Issue 10
DOI: 10.1103/PhysRevLett.104.106408

Insulator-to-metal transition in SmB6 induced by neutron irradiation
journal, September 2007

Karkin, A.; Akshentsev, Yu.; Goshchitskii, B.
Physica C: Superconductivity, Vol. 460-462
DOI: 10.1016/j.physc.2007.04.080

The birth of topological insulators
journal, March 2010

Moore, Joel E.
Nature, Vol. 464, Issue 7286
DOI: 10.1038/nature08916

Effects of doping in Kondo insulators (invited)
journal, May 1994

Schlottmann, P.
Journal of Applied Physics, Vol. 75, Issue 10
DOI: 10.1063/1.356720

Topological surface state in the Kondo insulator samarium hexaboride
journal, March 2014

Kim, D. J.; Xia, J.; Fisk, Z.
Nature Materials, Vol. 13, Issue 5
DOI: 10.1038/nmat3913

Modification and Control of Topological Insulator Surface States Using Surface Disorder
journal, June 2015

Sacksteder, Vincent; Ohtsuki, Tomi; Kobayashi, Koji
Physical Review Applied, Vol. 3, Issue 6
DOI: 10.1103/PhysRevApplied.3.064006

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
DOI: 10.1038/srep03150

Surface state reconstruction in ion-damaged ${SmB}_{6}$
journal, February 2015

Wakeham, N.; Wang, Y. Q.; Fisk, Z.
Physical Review B, Vol. 91, Issue 8
DOI: 10.1103/PhysRevB.91.085107

Valence Fluctuating State in SmB ₆
journal, May 1979

Kasuya, T.; Takegahara, K.; Fujita, T.
Le Journal de Physique Colloques, Vol. 40, Issue C5
DOI: 10.1051/jphyscol:19795107

Specific heat of GE 7031 varnish (4 – 18 K)
journal, October 1971

Cude, J. L.; Finegold, L.
Cryogenics, Vol. 11, Issue 5
DOI: 10.1016/0011-2275(71)90039-7

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
DOI: 10.1038/ncomms3991

Topological Insulator Materials
journal, October 2013

Ando, Yoichi
Journal of the Physical Society of Japan, Vol. 82, Issue 10, Article No. 102001
DOI: 10.7566/JPSJ.82.102001

Topological Insulators in Three Dimensions
journal, March 2007

Fu, Liang; Kane, C. L.; Mele, E. J.
Physical Review Letters, Vol. 98, Issue 10, Article No. 106803
DOI: 10.1103/PhysRevLett.98.106803

Topological surface states protected from backscattering by chiral spin texture
journal, August 2009

Roushan, Pedram; Seo, Jungpil; Parker, Colin V.
Nature, Vol. 460, Issue 7259, p. 1106-1109
DOI: 10.1038/nature08308

A new exotic state in an old material: a tale of SmB6
journal, September 2013

Dzero, M.; Galitski, V.
Journal of Experimental and Theoretical Physics, Vol. 117, Issue 3
DOI: 10.1134/S1063776113110083

Correlation between Bulk Thermodynamic Measurements and the Low-Temperature-Resistance Plateau in ${SmB}_{6}$
journal, July 2014

Phelan, W. A.; Koohpayeh, S. M.; Cottingham, P.
Physical Review X, Vol. 4, Issue 3
DOI: 10.1103/PhysRevX.4.031012

Tuning Bulk and Surface Conduction in the Proposed Topological Kondo Insulator ${SmB}_{6}$
journal, March 2015

Syers, Paul; Kim, Dohun; Fuhrer, Michael S.
Physical Review Letters, Vol. 114, Issue 9
DOI: 10.1103/PhysRevLett.114.096601

Growth of single crystals from metallic fluxes
journal, June 1992

Canfield, P. C.; Fisk, Z.
Philosophical Magazine B, Vol. 65, Issue 6
DOI: 10.1080/13642819208215073

SRIM – The stopping and range of ions in matter (2010)
journal, June 2010

Ziegler, James F.; Ziegler, M. D.; Biersack, J. P.
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 268, Issue 11-12
DOI: 10.1016/j.nimb.2010.02.091

Destruction of the gap in the intermediate valence compound SmB6 by neutron irradiation
journal, October 1983

Morillo, Joseph; de Novion, Charles-Henri; Jun, Jan
Solid State Communications, Vol. 48, Issue 4
DOI: 10.1016/0038-1098(83)90730-5

Low-temperature surface conduction in the Kondo insulator SmB $_{6}$
journal, November 2013

Wolgast, Steven; Kurdak, Çağlıyan; Sun, Kai
Physical Review B, Vol. 88, Issue 18
DOI: 10.1103/PhysRevB.88.180405

Kondo Breakdown and Quantum Oscillations in ${SmB}_{6}$
journal, January 2016

Erten, Onur; Ghaemi, Pouyan; Coleman, Piers
Physical Review Letters, Vol. 116, Issue 4
DOI: 10.1103/PhysRevLett.116.046403

Topological Kondo Insulators
journal, March 2016

Dzero, Maxim; Xia, Jing; Galitski, Victor
Annual Review of Condensed Matter Physics, Vol. 7, Issue 1
DOI: 10.1146/annurev-conmatphys-031214-014749

Studies of the Kondo insulator Ce3Bi4Pt3 in 61 T pulsed magnetic fields
journal, May 1995

Boebinger, G. S.; Passner, A.; Canfield, P. C.
Physica B: Condensed Matter, Vol. 211, Issue 1-4
DOI: 10.1016/0921-4526(94)00992-5

Scanning tunneling spectroscopy and surface quasiparticle interference in models for the strongly correlated topological insulators ${SmB}_{6}$ and ${PuB}_{6}$
journal, November 2014

Baruselli, Pier Paolo; Vojta, Matthias
Physical Review B, Vol. 90, Issue 20
DOI: 10.1103/PhysRevB.90.201106

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
DOI: 10.1038/ncomms5566

Fate of topological-insulator surface states under strong disorder
journal, May 2012

Schubert, Gerald; Fehske, Holger; Fritz, Lars
Physical Review B, Vol. 85, Issue 20
DOI: 10.1103/PhysRevB.85.201105

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
DOI: 10.1038/ncomms4010

Works referencing / citing this record:

Mixed-valence insulators with neutral Fermi surfaces
journal, May 2018

Chowdhury, Debanjan; Sodemann, Inti; Senthil, T.
Nature Communications, Vol. 9, Issue 1
DOI: 10.1038/s41467-018-04163-2

Magnetic field-tuned Fermi liquid in a Kondo insulator
journal, December 2019

Kushwaha, Satya K.; Chan, Mun K.; Park, Joonbum
Nature Communications, Vol. 10, Issue 1
DOI: 10.1038/s41467-019-13421-w

Topological phase transition in the archetypal $f$ -electron correlated system of cerium
journal, November 2019

Kim, Junwon; Ryu, Dong-Choon; Kang, Chang-Jong
Physical Review B, Vol. 100, Issue 19
DOI: 10.1103/physrevb.100.195138

Pressure-driven valence increase and metallization in the Kondo insulator ${Ce}_{3} {Bi}_{4} {Pt}_{3}$
journal, December 2019

Campbell, Daniel J.; Brubaker, Zachary E.; Roncaioli, Connor
Physical Review B, Vol. 100, Issue 23
DOI: 10.1103/physrevb.100.235133

Anomalous three-dimensional bulk ac conduction within the Kondo gap of ${SmB}_{6}$ single crystals
journal, October 2016

Laurita, N. J.; Morris, C. M.; Koohpayeh, S. M.
Physical Review B, Vol. 94, Issue 16
DOI: 10.1103/physrevb.94.165154

Quantum spin fluctuations in the bulk insulating state of pure and Fe-doped ${SmB}_{6}$
journal, June 2017

Akintola, K.; Pal, A.; Potma, M.
Physical Review B, Vol. 95, Issue 24
DOI: 10.1103/physrevb.95.245107

Isosbestic points in doped $Sm B_{6}$ as features of universality and property tuning
journal, September 2017

Orendáč, Mat.; Gabáni, S.; Pristáš, G.
Physical Review B, Vol. 96, Issue 11
DOI: 10.1103/physrevb.96.115101

Quantum oscillations in insulators with neutral Fermi surfaces
journal, January 2018

Sodemann, Inti; Chowdhury, Debanjan; Senthil, T.
Physical Review B, Vol. 97, Issue 4
DOI: 10.1103/physrevb.97.045152

Physical properties of ${Sm}_{x} B_{6}$ single crystals
journal, January 2019

Stankiewicz, Jolanta; Evangelisti, Marco; Rosa, Priscila F. S.
Physical Review B, Vol. 99, Issue 4
DOI: 10.1103/physrevb.99.045138

Kondo Insulator to Semimetal Transformation Tuned by Spin-Orbit Coupling
journal, June 2017

Dzsaber, S.; Prochaska, L.; Sidorenko, A.
Physical Review Letters, Vol. 118, Issue 24
DOI: 10.1103/physrevlett.118.246601

Quantum Oscillation from In-Gap States and a Non-Hermitian Landau Level Problem
journal, July 2018

Shen, Huitao; Fu, Liang
Physical Review Letters, Vol. 121, Issue 2
DOI: 10.1103/physrevlett.121.026403

Quantum Oscillations in Flux-Grown ${SmB}_{6}$ with Embedded Aluminum
journal, April 2019

Thomas, S. M.; Ding, Xiaxin; Ronning, F.
Physical Review Letters, Vol. 122, Issue 16
DOI: 10.1103/physrevlett.122.166401

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Title: Low-temperature conducting state in two candidate topological Kondo insulators: SmB 6 and Ce 3 Bi 4 Pt 3

Abstract

Citation Formats

The effect of magnetic and non-magnetic ion damage on the surface state in SmB6 journal, February 2016

Closing the spin gap in the Kondo insulator Ce3Bi4Pt3 at high magnetic fields journal, May 2000

Topological Kondo Insulators journal, March 2010

Insulator-to-metal transition in SmB6 induced by neutron irradiation journal, September 2007

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Specific heat of GE 7031 varnish (4 – 18 K) journal, October 1971

Surface electronic structure of the topological Kondo-insulator candidate correlated electron system SmB6 journal, December 2013

Topological Insulator Materials journal, October 2013

Topological Insulators in Three Dimensions journal, March 2007

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Studies of the Kondo insulator Ce3Bi4Pt3 in 61 T pulsed magnetic fields journal, May 1995

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Title: Low-temperature conducting state in two candidate topological Kondo insulators: ${SmB}_{6}$ and ${Ce}_{3} {Bi}_{4} {Pt}_{3}$

The effect of magnetic and non-magnetic ion damage on the surface state in SmB6
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Closing the spin gap in the Kondo insulator Ce3Bi4Pt3 at high magnetic fields
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Topological Kondo Insulators
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Insulator-to-metal transition in SmB6 induced by neutron irradiation
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The birth of topological insulators
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Effects of doping in Kondo insulators (invited)
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Topological surface state in the Kondo insulator samarium hexaboride
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Modification and Control of Topological Insulator Surface States Using Surface Disorder
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Surface Hall Effect and Nonlocal Transport in SmB6: Evidence for Surface Conduction
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Surface state reconstruction in ion-damaged ${SmB}_{6}$
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Valence Fluctuating State in SmB ₆
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Specific heat of GE 7031 varnish (4 – 18 K)
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Surface electronic structure of the topological Kondo-insulator candidate correlated electron system SmB6
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Topological Insulator Materials
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Growth of single crystals from metallic fluxes
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SRIM – The stopping and range of ions in matter (2010)
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Destruction of the gap in the intermediate valence compound SmB6 by neutron irradiation
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Low-temperature surface conduction in the Kondo insulator SmB $_{6}$
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Topological Kondo Insulators
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Studies of the Kondo insulator Ce3Bi4Pt3 in 61 T pulsed magnetic fields
journal, May 1995

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Direct observation of the spin texture in SmB6 as evidence of the topological Kondo insulator
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Observation of possible topological in-gap surface states in the Kondo insulator SmB6 by photoemission
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