Surface state reconstruction in ion-damaged
Abstract
We have used ion-irradiation to damage the (001) surfaces of SmB₆ single crystals to varying depths, and have measured the resistivity as a function of temperature for each depth of damage. We observe a reduction in the residual resistivity with increasing depth of damage. Our data are consistent with a model in which the surface state is not destroyed by the ion-irradiation, however instead the damaged layer is poorly conducting and the initial surface state is reconstructed below the damage. This behavior is consistent with a surface state that is topologically protected.
- Authors:
-
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of California, Irvine, CA (United States)
- Publication Date:
- Research Org.:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1193286
- Alternate Identifier(s):
- OSTI ID: 1180728
- Report Number(s):
- LA-UR-14-29104
Journal ID: ISSN 1098-0121; PRBMDO
- Grant/Contract Number:
- AC52-06NA25396
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physical Review. B, Condensed Matter and Materials Physics
- Additional Journal Information:
- Journal Volume: 91; Journal Issue: 8; Journal ID: ISSN 1098-0121
- Publisher:
- American Physical Society (APS)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Wakeham, N., Wang, Y. Q., Fisk, Z., Ronning, F., and Thompson, J. D. Surface state reconstruction in ion-damaged SmB6. United States: N. p., 2015.
Web. doi:10.1103/PhysRevB.91.085107.
Wakeham, N., Wang, Y. Q., Fisk, Z., Ronning, F., & Thompson, J. D. Surface state reconstruction in ion-damaged SmB6. United States. https://doi.org/10.1103/PhysRevB.91.085107
Wakeham, N., Wang, Y. Q., Fisk, Z., Ronning, F., and Thompson, J. D. Thu .
"Surface state reconstruction in ion-damaged SmB6". United States. https://doi.org/10.1103/PhysRevB.91.085107. https://www.osti.gov/servlets/purl/1193286.
@article{osti_1193286,
title = {Surface state reconstruction in ion-damaged SmB6},
author = {Wakeham, N. and Wang, Y. Q. and Fisk, Z. and Ronning, F. and Thompson, J. D.},
abstractNote = {We have used ion-irradiation to damage the (001) surfaces of SmB₆ single crystals to varying depths, and have measured the resistivity as a function of temperature for each depth of damage. We observe a reduction in the residual resistivity with increasing depth of damage. Our data are consistent with a model in which the surface state is not destroyed by the ion-irradiation, however instead the damaged layer is poorly conducting and the initial surface state is reconstructed below the damage. This behavior is consistent with a surface state that is topologically protected.},
doi = {10.1103/PhysRevB.91.085107},
journal = {Physical Review. B, Condensed Matter and Materials Physics},
number = 8,
volume = 91,
place = {United States},
year = {Thu Feb 12 00:00:00 EST 2015},
month = {Thu Feb 12 00:00:00 EST 2015}
}
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