Observation of surface states on heavily indium-doped SnTe(111), a superconducting topological crystalline insulator

C. M. Polley; V. Jovic; T. Y. Su; M. Saghir; D. Newby; B. J. Kowalski; R. Jakiela; A. Barcz; M. Guziewicz; Balasubramanian Thiagarajan; G. Balakrishnan; J. Laverock; K. E. Smith

doi:10.1103/PhysRevB.93.075132

Observation of surface states on heavily indium-doped SnTe(111), a superconducting topological crystalline insulator

C. M. Polley, V. Jovic, T. Y. Su, M. Saghir, D. Newby, B. J. Kowalski, R. Jakiela, A. Barcz, M. Guziewicz, Balasubramanian Thiagarajan, G. Balakrishnan, J. Laverock, K. E. Smith

MAX IV Laboratory

Research output: Contribution to journal › Article › peer-review

Abstract

The topological crystalline insulator tin telluride is known to host superconductivity when doped with indium (Sn1-xInxTe), and for low indium content (x=0.04) it is known that the topological surface states are preserved. Here we present the growth, characterization, and angle resolved photoemission spectroscopy analysis of samples with much heavier In doping (up to x≈0.4), a regime where the superconducting temperature is increased nearly fourfold. We demonstrate that despite strong p-type doping, Dirac-like surface states persist.

Original language	English
Article number	075132
Journal	Physical Review B (Condensed Matter and Materials Physics)
Volume	93
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevB.93.075132
Publication status	Published - 2016 Feb 18

Subject classification (UKÄ)

Condensed Matter Physics (including Material Physics, Nano Physics)

Access to Document

10.1103/PhysRevB.93.075132

Cite this

Polley, C. M., Jovic, V., Su, T. Y., Saghir, M., Newby, D., Kowalski, B. J., Jakiela, R., Barcz, A., Guziewicz, M., Thiagarajan, B., Balakrishnan, G., Laverock, J., & Smith, K. E. (2016). Observation of surface states on heavily indium-doped SnTe(111), a superconducting topological crystalline insulator. Physical Review B (Condensed Matter and Materials Physics), 93(7), Article 075132. https://doi.org/10.1103/PhysRevB.93.075132

@article{e7998539d983414d9d72e621b3646614,

title = "Observation of surface states on heavily indium-doped SnTe(111), a superconducting topological crystalline insulator",

abstract = "The topological crystalline insulator tin telluride is known to host superconductivity when doped with indium (Sn1-xInxTe), and for low indium content (x=0.04) it is known that the topological surface states are preserved. Here we present the growth, characterization, and angle resolved photoemission spectroscopy analysis of samples with much heavier In doping (up to x≈0.4), a regime where the superconducting temperature is increased nearly fourfold. We demonstrate that despite strong p-type doping, Dirac-like surface states persist.",

author = "Polley, {C. M.} and V. Jovic and Su, {T. Y.} and M. Saghir and D. Newby and Kowalski, {B. J.} and R. Jakiela and A. Barcz and M. Guziewicz and Balasubramanian Thiagarajan and G. Balakrishnan and J. Laverock and Smith, {K. E.}",

year = "2016",

month = feb,

day = "18",

doi = "10.1103/PhysRevB.93.075132",

language = "English",

volume = "93",

journal = "Physical Review B (Condensed Matter and Materials Physics)",

issn = "1098-0121",

publisher = "American Physical Society",

number = "7",

}

Polley, CM, Jovic, V, Su, TY, Saghir, M, Newby, D, Kowalski, BJ, Jakiela, R, Barcz, A, Guziewicz, M, Thiagarajan, B, Balakrishnan, G, Laverock, J & Smith, KE 2016, 'Observation of surface states on heavily indium-doped SnTe(111), a superconducting topological crystalline insulator', Physical Review B (Condensed Matter and Materials Physics), vol. 93, no. 7, 075132. https://doi.org/10.1103/PhysRevB.93.075132

TY - JOUR

T1 - Observation of surface states on heavily indium-doped SnTe(111), a superconducting topological crystalline insulator

AU - Polley, C. M.

AU - Jovic, V.

AU - Su, T. Y.

AU - Saghir, M.

AU - Newby, D.

AU - Kowalski, B. J.

AU - Jakiela, R.

AU - Barcz, A.

AU - Guziewicz, M.

AU - Thiagarajan, Balasubramanian

AU - Balakrishnan, G.

AU - Laverock, J.

AU - Smith, K. E.

PY - 2016/2/18

Y1 - 2016/2/18

N2 - The topological crystalline insulator tin telluride is known to host superconductivity when doped with indium (Sn1-xInxTe), and for low indium content (x=0.04) it is known that the topological surface states are preserved. Here we present the growth, characterization, and angle resolved photoemission spectroscopy analysis of samples with much heavier In doping (up to x≈0.4), a regime where the superconducting temperature is increased nearly fourfold. We demonstrate that despite strong p-type doping, Dirac-like surface states persist.

AB - The topological crystalline insulator tin telluride is known to host superconductivity when doped with indium (Sn1-xInxTe), and for low indium content (x=0.04) it is known that the topological surface states are preserved. Here we present the growth, characterization, and angle resolved photoemission spectroscopy analysis of samples with much heavier In doping (up to x≈0.4), a regime where the superconducting temperature is increased nearly fourfold. We demonstrate that despite strong p-type doping, Dirac-like surface states persist.

U2 - 10.1103/PhysRevB.93.075132

DO - 10.1103/PhysRevB.93.075132

M3 - Article

AN - SCOPUS:84960155238

SN - 1098-0121

VL - 93

JO - Physical Review B (Condensed Matter and Materials Physics)

JF - Physical Review B (Condensed Matter and Materials Physics)

IS - 7

M1 - 075132

ER -

Observation of surface states on heavily indium-doped SnTe(111), a superconducting topological crystalline insulator

Abstract

Subject classification (UKÄ)

Access to Document

Fingerprint

Cite this