Massive Suppression of Proximity Pairing in Topological (Bi1-xSbx)2Te3 Films on Niobium

Hlevyack, Joseph A.; Najafzadeh, Sahand; Lin, Meng-Kai; Hashimoto, Takahiro; Nagashima, Tsubaki; Tsuzuki, Akihiro; Fukushima, Akiko; Bareille, Cédric; Bai, Yang; Chen, Peng; Liu, Ro-Ya; Li, Yao; Flötotto, David; Avila, José; Eckstein, James N.; Shin, Shik; Okazaki, Kozo; Chiang, T. -C.

doi:10.1103/PhysRevLett.124.236402

Massive Suppression of Proximity Pairing in Topological ${({Bi}_{1 - x} {Sb}_{x})}_{2} {Te}_{3}$ Films on Niobium

Journal Article · Fri Jun 12 00:00:00 EDT 2020 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.124.236402· OSTI ID:1633111

^[1]; Najafzadeh, Sahand ^[2]; ^[3]; Hashimoto, Takahiro ^[2]; Nagashima, Tsubaki ^[2]; Tsuzuki, Akihiro ^[2]; Fukushima, Akiko ^[2]; Bareille, Cédric ^[2]; Bai, Yang ^[3]; ^[4]; Liu, Ro-Ya ^[5]; ^[3]; Flötotto, David ^[6]; Avila, José ^[7]; ^[3]; Shin, Shik ^[2]; Okazaki, Kozo ^[2]; ^[3]

Univ. of Illinois at Urbana-Champaign, IL (United States); University of Illinois at Urbana-Champaign
Univ. of Tokyo (Japan)
Univ. of Illinois at Urbana-Champaign, IL (United States)
Univ. of Illinois at Urbana-Champaign, IL (United States); Shanghai Jiao Tong Univ. (China)
Univ. of Illinois at Urbana-Champaign, IL (United States); Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States)
Univ. of Münster (Germany)
Univ. Paris-Saclay, Gif-sur-Yvette (France); Synchrotron SOLEIL, Paris (France)

Interfacing bulk conducting topological Bi₂Se₃ films with s-wave superconductors initiates strong superconducting order in the nontrivial surface states. Yet, bulk insulating topological (Bi_1-xSb_x)₂Te₃ films on bulk Nb instead exhibit a giant attenuation of surface superconductivity, even for films only two-layers thick. This massive suppression of proximity pairing is shown by ultrahigh-resolution band mappings and by contrasting quantified superconducting gaps with those of heavily n-doped topological Bi₂Se₃/Nb. The results underscore the limitations of using superconducting proximity effects to realize topological superconductivity in nearly intrinsic systems.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Illinois at Urbana-Champaign, IL (United States)

Sponsoring Organization:: Army Research Office (ARO); French National Research Agency (ANR); National Science Foundation (NSF); USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22). Materials Sciences & Engineering Division

Grant/Contract Number:: FG02-07ER46383

OSTI ID:: 1633111

Journal Information:: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 23 Vol. 124; ISSN 0031-9007; ISSN PRLTAO

Publisher:: American Physical Society (APS)Copyright Statement

Country of Publication:: United States

Language:: English

References (37)

Observations of a Metal-Insulator Transition and Strong Surface States in Bi _{2- x} Sb _x Se ₃ Thin Films Zhang, Cheng; Yuan, Xiang; Wang, Kai Advanced Materials, Vol. 26, Issue 41 https://doi.org/10.1002/adma.201402299	journal	September 2014
Exploring Topological Superconductivity in Topological Materials Li, Yupeng; Xu, Zhu‐An Advanced Quantum Technologies, Vol. 2, Issue 9 https://doi.org/10.1002/qute.201800112	journal	July 2019
Proximity Effect From an Andreev Perspective Klapwijk, T. M. Journal of Superconductivity, Vol. 17, Issue 5 https://doi.org/10.1007/s10948-004-0773-0	journal	October 2004
Gate-tuned normal and superconducting transport at the surface of a topological insulator Sacépé, Benjamin; Oostinga, Jeroen B.; Li, Jian Nature Communications, Vol. 2, Issue 1 https://doi.org/10.1038/ncomms1586	journal	September 2011
Band structure engineering in (Bi1−xSbx)2Te3 ternary topological insulators Zhang, Jinsong; Chang, Cui-Zu; Zhang, Zuocheng Nature Communications, Vol. 2, Issue 1 https://doi.org/10.1038/ncomms1588	journal	September 2011
Topological insulators in Bi₂Se₃, Bi₂Te₃ and Sb₂Te₃ with a single Dirac cone on the surface Zhang, Haijun; Liu, Chao-Xing; Qi, Xiao-Liang Nature Physics, Vol. 5, Issue 6, p. 438-442 https://doi.org/10.1038/nphys1270	journal	May 2009
Crossover of the three-dimensional topological insulator Bi2Se3 to the two-dimensional limit Zhang, Yi; He, Ke; Chang, Cui-Zu Nature Physics, Vol. 6, Issue 8 https://doi.org/10.1038/nphys1689	journal	June 2010
Observation of topological order in a superconducting doped topological insulator Wray, L. Andrew; Xu, Su-Yang; Xia, Yuqi Nature Physics, Vol. 6, Issue 11 https://doi.org/10.1038/nphys1762	journal	September 2010
Momentum-space imaging of Cooper pairing in a half-Dirac-gas topological superconductor Xu, Su-Yang; Alidoust, Nasser; Belopolski, Ilya Nature Physics, Vol. 10, Issue 12 https://doi.org/10.1038/nphys3139	journal	November 2014
Proximity-effect-induced Superconducting Gap in Topological Surface States – A Point Contact Spectroscopy Study of NbSe2/Bi2Se3 Superconductor-Topological Insulator Heterostructures Dai, Wenqing; Richardella, Anthony; Du, Renzhong Scientific Reports, Vol. 7, Issue 1 https://doi.org/10.1038/s41598-017-07990-3	journal	August 2017
Possible transport evidence for three-dimensional topological superconductivity in doped β-PdBi2 Kolapo, Ayo; Li, Tingxin; Hosur, Pavan Scientific Reports, Vol. 9, Issue 1 https://doi.org/10.1038/s41598-019-48906-7	journal	August 2019
Substitution-induced spin-splitted surface states in topological insulator (Bi1−xSbx)2Te3 He, Xiaoyue; Li, Hui; Chen, Lan Scientific Reports, Vol. 5, Issue 1 https://doi.org/10.1038/srep08830	journal	March 2015
Tuning the Dirac point to the Fermi level in the ternary topological insulator (Bi ₁₋ _x Sb _x ) ₂ Te ₃ Kellner, Jens; Eschbach, Markus; Kampmeier, Jörn Applied Physics Letters, Vol. 107, Issue 25 https://doi.org/10.1063/1.4938394	journal	December 2015
Large-scale uniform bilayer graphene prepared by vacuum graphitization of 6H-SiC(0001) substrates Wang, Qingyan; Zhang, Wenhao; Wang, Lili Journal of Physics: Condensed Matter, Vol. 25, Issue 9 https://doi.org/10.1088/0953-8984/25/9/095002	journal	January 2013
Topological superconductors: a review Sato, Masatoshi; Ando, Yoichi Reports on Progress in Physics, Vol. 80, Issue 7 https://doi.org/10.1088/1361-6633/aa6ac7	journal	May 2017
Topological limit of ultrathin quasi-free-standing Bi 2 Te 3 films grown on Si(111) Liu, Yang; Bian, Guang; Miller, T. Physical Review B, Vol. 85, Issue 19 https://doi.org/10.1103/PhysRevB.85.195442	journal	May 2012
Fermi-level electronic structure of a topological-insulator/cuprate-superconductor based heterostructure in the superconducting proximity effect regime Xu, Su-Yang; Liu, Chang; Richardella, Anthony Physical Review B, Vol. 90, Issue 8 https://doi.org/10.1103/PhysRevB.90.085128	journal	August 2014
Superconducting proximity effect in a topological insulator using Fe(Te, Se) Zhao, He; Rachmilowitz, Bryan; Ren, Zheng Physical Review B, Vol. 97, Issue 22 https://doi.org/10.1103/PhysRevB.97.224504	journal	June 2018
Superconducting Proximity Effect and Majorana Fermions at the Surface of a Topological Insulator Fu, Liang; Kane, C. L. Physical Review Letters, Vol. 100, Issue 9 https://doi.org/10.1103/PhysRevLett.100.096407	journal	March 2008
Time-Reversal-Invariant Topological Superconductors and Superfluids in Two and Three Dimensions Qi, Xiao-Liang; Hughes, Taylor L.; Raghu, S. Physical Review Letters, Vol. 102, Issue 18 https://doi.org/10.1103/PhysRevLett.102.187001	journal	May 2009
Observation of Time-Reversal-Protected Single-Dirac-Cone Topological-Insulator States in Bi 2 Te 3 and Sb 2 Te 3 Hsieh, D.; Xia, Y.; Qian, D. Physical Review Letters, Vol. 103, Issue 14 https://doi.org/10.1103/PhysRevLett.103.146401	journal	September 2009
Interfacial Protection of Topological Surface States in Ultrathin Sb Films Bian, Guang; Wang, Xiaoxiong; Liu, Yang Physical Review Letters, Vol. 108, Issue 17 https://doi.org/10.1103/PhysRevLett.108.176401	journal	April 2012
Unconventional Josephson Effect in Hybrid Superconductor-Topological Insulator Devices Williams, J. R.; Bestwick, A. J.; Gallagher, P. Physical Review Letters, Vol. 109, Issue 5 https://doi.org/10.1103/PhysRevLett.109.056803	journal	July 2012
Artificial Topological Superconductor by the Proximity Effect Xu, Jin-Peng; Liu, Canhua; Wang, Mei-Xiao Physical Review Letters, Vol. 112, Issue 21 https://doi.org/10.1103/PhysRevLett.112.217001	journal	May 2014
Absence of a Proximity Effect for a Thin-Films of a Bi 2 Se 3 Topological Insulator Grown on Top of a Bi 2 Sr 2 CaCu 2 O 8 + δ Cuprate Superconductor Yilmaz, T.; Pletikosić, I.; Weber, A. P. Physical Review Letters, Vol. 113, Issue 6 https://doi.org/10.1103/PhysRevLett.113.067003	journal	August 2014
Unconventional Superconductivity in the BiS 2 -Based Layered Superconductor NdO 0.71 F 0.29 BiS 2 Ota, Yuichi; Okazaki, Kozo; Yamamoto, Haruyoshi Q. Physical Review Letters, Vol. 118, Issue 16 https://doi.org/10.1103/PhysRevLett.118.167002	journal	April 2017
Edge Quantum Criticality and Emergent Supersymmetry in Topological Phases Li, Zi-Xiang; Jiang, Yi-Fan; Yao, Hong Physical Review Letters, Vol. 119, Issue 10 https://doi.org/10.1103/PhysRevLett.119.107202	journal	September 2017
Colloquium: Topological insulators Hasan, M. Z.; Kane, C. L. Reviews of Modern Physics, Vol. 82, Issue 4, p. 3045-3067 https://doi.org/10.1103/RevModPhys.82.3045	journal	November 2010
Superconducting pairing of topological surface states in bismuth selenide films on niobium Flötotto, David; Ota, Yuichi; Bai, Yang Science Advances, Vol. 4, Issue 4 https://doi.org/10.1126/sciadv.aar7214	journal	April 2018
Superconductivity with twofold symmetry in Bi 2 Te 3 /FeTe 0.55 Se 0.45 heterostructures Chen, Mingyang; Chen, Xiaoyu; Yang, Huan Science Advances, Vol. 4, Issue 6 https://doi.org/10.1126/sciadv.aat1084	journal	June 2018
The Coexistence of Superconductivity and Topological Order in the Bi ₂ Se ₃ Thin Films Wang, Mei-Xiao; Liu, Canhua; Xu, Jin-Peng Science, Vol. 336, Issue 6077 https://doi.org/10.1126/science.1216466	journal	March 2012
Octet-Line Node Structure of Superconducting Order Parameter in KFe2As2 Okazaki, K.; Ota, Y.; Kotani, Y. Science, Vol. 337, Issue 6100 https://doi.org/10.1126/science.1222793	journal	September 2012
Emergent Space-Time Supersymmetry at the Boundary of a Topological Phase Grover, T.; Sheng, D. N.; Vishwanath, A. Science, Vol. 344, Issue 6181 https://doi.org/10.1126/science.1248253	journal	April 2014
Observation of topological superconductivity on the surface of an iron-based superconductor Zhang, Peng; Yaji, Koichiro; Hashimoto, Takahiro Science, Vol. 360, Issue 6385 https://doi.org/10.1126/science.aan4596	journal	March 2018
Electronic properties and quantum transport in Graphene-based nanostructures Dubois, S. M. -M.; Zanolli, Z.; Declerck, X. The European Physical Journal B, Vol. 72, Issue 1 https://doi.org/10.1140/epjb/e2009-00327-8	journal	October 2009
Dirac Cones in Graphene, Interlayer Interaction in Layered Materials, and the Band Gap in MoS2 Yakovkin, Ivan Crystals, Vol. 6, Issue 11 https://doi.org/10.3390/cryst6110143	journal	November 2016
Growth and characterization of MBE-grown (Bi ₁₋ _x Sb _x ) ₂ Se ₃ topological insulator Liu, Yuhung; Chong, Cheongwei; Chen, Weichuan Japanese Journal of Applied Physics, Vol. 56, Issue 7 https://doi.org/10.7567/JJAP.56.070311	journal	June 2017

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