Abstract
In addition to the weak antilocalization cusp observed in the magnetoresistance (MR) of topological insulators at low temperatures and low magnetic fields, we find that the high-field MR in Bi2Te2Se is linear in field. At fields up to B = 14 T, the slope of this linear-like MR is nearly independent of temperature over the range T = 7 to 150 K. We find that the linear MR arises from the competition between a logarithmic phase coherence component and a quadratic component. The quantum phase coherence dominates up to high temperatures, where the coherence length remains longer than the mean free path of electrons.
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Dates
Type | When |
---|---|
Created | 12 years, 7 months ago (Jan. 3, 2013, 1:34 a.m.) |
Deposited | 2 years, 2 months ago (June 24, 2023, 5:11 a.m.) |
Indexed | 3 days, 17 hours ago (Aug. 23, 2025, 9:44 p.m.) |
Issued | 12 years, 7 months ago (Jan. 2, 2013) |
Published | 12 years, 7 months ago (Jan. 2, 2013) |
Published Online | 12 years, 7 months ago (Jan. 2, 2013) |
Published Print | 12 years, 7 months ago (Jan. 7, 2013) |
Funders
1
National Science Foundation
10.13039/100000001
Region: Americas
gov (National government)
Labels
4
- U.S. National Science Foundation
- NSF
- US NSF
- USA NSF
Awards
4
- DMR-0819762
- DMR-0504158
- ONR-N00014-09-1-0177
- DMR-0907007
@article{Assaf_2013, title={Linear magnetoresistance in topological insulator thin films: Quantum phase coherence effects at high temperatures}, volume={102}, ISSN={1077-3118}, url={http://dx.doi.org/10.1063/1.4773207}, DOI={10.1063/1.4773207}, number={1}, journal={Applied Physics Letters}, publisher={AIP Publishing}, author={Assaf, B. A. and Cardinal, T. and Wei, P. and Katmis, F. and Moodera, J. S. and Heiman, D.}, year={2013}, month=jan }