Instability of the topological surface state in upon deposition of gold
Abstract
Momentum-resolved photoemission spectroscopy indicates the instability of the Dirac surface state upon deposition of gold on the (0001) surface of the topological insulator Bi2Se3. Based on the structure model derived from extended x-ray absorption fine structure experiments showing that gold atoms substitute bismuth atoms, first-principles calculations provide evidence that a gap appears due to hybridization of the surface state with gold d states near the Fermi level. Here, our findings provide insights into the mechanisms affecting the stability of the surface state.
- Authors:
-
- Max-Planck-Inst. für Mikrostrukturphysik, Halle (Germany)
- Forschungszentrum Jülich GmbH, Jülich (Germany); Max-Planck-Inst. für Mikrostrukturphysik, Halle (Germany)
- Johannes-Gutenberg-Univ. Mainz (Germany); Max-Planck-Inst. für Mikrostrukturphysik, Halle (Germany)
- Simon Fraser Univ., Burnaby, BC (Canada)
- Donostia International Physics Center (DIPC), Basque Country (Spain); Tomsk State Univ. (Russia); Saint Petersburg State Univ. (Russia)
- Max-Planck-Inst. für Mikrostrukturphysik, Halle (Germany); Donostia International Physics Center (DIPC), Basque Country (Spain)
- Max-Planck-Inst. für Mikrostrukturphysik, Halle (Germany); KTH Royal Inst. of Technology and Stockholm Univ. (Sweden)
- Donostia International Physics Center (DIPC), Basque Country (Spain); Tomsk State Univ. (Russia); Centro de Física de Materiales CFM-MPC and Centro Mixto CSIC-UPV/EHU, Basque Country (Spain)
- Max-Planck-Inst. für Mikrostrukturphysik, Halle (Germany); Johannes Kepler Univ., Linz (Austria)
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities Division; Spanish Ministry of Science and Innovation
- OSTI Identifier:
- 1368242
- Alternate Identifier(s):
- OSTI ID: 1357847
- Grant/Contract Number:
- AC02-06CH11357; FIS201348286-C02-02-P; FIS2013-48286-C02-01-P
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review B
- Additional Journal Information:
- Journal Volume: 95; Journal Issue: 18; Journal ID: ISSN 2469-9950
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- ENGLISH
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; band gap; electronic structure of atoms & molecules; first-principles calculations; topological materials; condensed matter & materials physics
Citation Formats
Polyakov, A., Tusche, C., Ellguth, M., Crozier, E. D., Mohseni, K., Otrokov, M. M., Zubizarreta, X., Vergniory, M. G., Geilhufe, M., Chulkov, E. V., Ernst, A., Meyerheim, H. L., and Parkin, S. S. P. Instability of the topological surface state in Bi2Se3 upon deposition of gold. United States: N. p., 2017.
Web. doi:10.1103/PhysRevB.95.180202.
Polyakov, A., Tusche, C., Ellguth, M., Crozier, E. D., Mohseni, K., Otrokov, M. M., Zubizarreta, X., Vergniory, M. G., Geilhufe, M., Chulkov, E. V., Ernst, A., Meyerheim, H. L., & Parkin, S. S. P. Instability of the topological surface state in Bi2Se3 upon deposition of gold. United States. https://doi.org/10.1103/PhysRevB.95.180202
Polyakov, A., Tusche, C., Ellguth, M., Crozier, E. D., Mohseni, K., Otrokov, M. M., Zubizarreta, X., Vergniory, M. G., Geilhufe, M., Chulkov, E. V., Ernst, A., Meyerheim, H. L., and Parkin, S. S. P. Thu .
"Instability of the topological surface state in Bi2Se3 upon deposition of gold". United States. https://doi.org/10.1103/PhysRevB.95.180202. https://www.osti.gov/servlets/purl/1368242.
@article{osti_1368242,
title = {Instability of the topological surface state in Bi2Se3 upon deposition of gold},
author = {Polyakov, A. and Tusche, C. and Ellguth, M. and Crozier, E. D. and Mohseni, K. and Otrokov, M. M. and Zubizarreta, X. and Vergniory, M. G. and Geilhufe, M. and Chulkov, E. V. and Ernst, A. and Meyerheim, H. L. and Parkin, S. S. P.},
abstractNote = {Momentum-resolved photoemission spectroscopy indicates the instability of the Dirac surface state upon deposition of gold on the (0001) surface of the topological insulator Bi2Se3. Based on the structure model derived from extended x-ray absorption fine structure experiments showing that gold atoms substitute bismuth atoms, first-principles calculations provide evidence that a gap appears due to hybridization of the surface state with gold d states near the Fermi level. Here, our findings provide insights into the mechanisms affecting the stability of the surface state.},
doi = {10.1103/PhysRevB.95.180202},
journal = {Physical Review B},
number = 18,
volume = 95,
place = {United States},
year = {Thu May 18 00:00:00 EDT 2017},
month = {Thu May 18 00:00:00 EDT 2017}
}
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