Photon energy and polarization-dependent electronic structure of Cr-doped
Abstract
In this article, we report a comparative study of the electronic structure of Cr-doped and pristine Bi2Se3. Circular dichroism and photon-energy-dependent angle-resolved photoemission experiments were performed. Even though the surface states seen on the Cr-doped samples are gapped, they exhibit strong circular dichroism, for which we provide its origin in accordance with the nontrivial band structure of the bulk. We note the surface electronic structure measurements with linear and circular polarized light show signatures that the orbital composition of the surface states is changed with Cr doping. Our observations not only provide further spectroscopic information about topological materials, but also promotes an alternative experimental tool to control their spin-orbital texture.
- Authors:
-
[1];
- Brookhaven National Lab. (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
- Brookhaven National Lab. (BNL), Upton, NY (United States). Condensed Matter Physics and Materials Science Dept.
- Univ. of Connecticut, Storrs, CT (United States)
- Publication Date:
- Research Org.:
- Brookhaven National Laboratory (BNL), Upton, NY (United States). National Synchrotron Light Source II (NSLS-II)
- Sponsoring Org.:
- USDOE Office of Science (SC), Basic Energy Sciences (BES); University of Connecticut; USDOE Laboratory Directed Research and Development (LDRD) Program
- OSTI Identifier:
- 1603288
- Report Number(s):
- BNL-213681-2020-JAAM
Journal ID: ISSN 2475-9953; PRMHAR; TRN: US2104080
- Grant/Contract Number:
- SC0012704; 4626510
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review Materials
- Additional Journal Information:
- Journal Volume: 4; Journal Issue: 2; Journal ID: ISSN 2475-9953
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Yilmaz, T., Gu, G. D., Vescovo, E., Kaznatcheev, K., and Sinkovic, B. Photon energy and polarization-dependent electronic structure of Cr-doped Bi2Se3. United States: N. p., 2020.
Web. doi:10.1103/PhysRevMaterials.4.024201.
Yilmaz, T., Gu, G. D., Vescovo, E., Kaznatcheev, K., & Sinkovic, B. Photon energy and polarization-dependent electronic structure of Cr-doped Bi2Se3. United States. https://doi.org/10.1103/PhysRevMaterials.4.024201
Yilmaz, T., Gu, G. D., Vescovo, E., Kaznatcheev, K., and Sinkovic, B. Wed .
"Photon energy and polarization-dependent electronic structure of Cr-doped Bi2Se3". United States. https://doi.org/10.1103/PhysRevMaterials.4.024201. https://www.osti.gov/servlets/purl/1603288.
@article{osti_1603288,
title = {Photon energy and polarization-dependent electronic structure of Cr-doped Bi2Se3},
author = {Yilmaz, T. and Gu, G. D. and Vescovo, E. and Kaznatcheev, K. and Sinkovic, B.},
abstractNote = {In this article, we report a comparative study of the electronic structure of Cr-doped and pristine Bi2Se3. Circular dichroism and photon-energy-dependent angle-resolved photoemission experiments were performed. Even though the surface states seen on the Cr-doped samples are gapped, they exhibit strong circular dichroism, for which we provide its origin in accordance with the nontrivial band structure of the bulk. We note the surface electronic structure measurements with linear and circular polarized light show signatures that the orbital composition of the surface states is changed with Cr doping. Our observations not only provide further spectroscopic information about topological materials, but also promotes an alternative experimental tool to control their spin-orbital texture.},
doi = {10.1103/PhysRevMaterials.4.024201},
journal = {Physical Review Materials},
number = 2,
volume = 4,
place = {United States},
year = {Wed Feb 05 00:00:00 EST 2020},
month = {Wed Feb 05 00:00:00 EST 2020}
}
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