Document Detail

High pressure transport properties of the topological insulator Bi(2)Se(3).
MedLine Citation:
PMID:  22183616     Owner:  NLM     Status:  Publisher    
We report x-ray diffraction, electrical resistivity, and magnetoresistance measurements on Bi(2)Se(3) under high pressure and low temperature conditions. Pressure induces profound changes in both the room temperature value of the electrical resistivity as well as the temperature dependence of the resistivity. Initially, pressure drives Bi(2)Se(3) toward increasingly insulating behavior and then, at higher pressures, the sample appears to enter a fully metallic state coincident with a change in the crystal structure. Within the low pressure phase, Bi(2)Se(3) exhibits an unusual field dependence of the transverse magnetoresistance Δρ(xx) that is positive at low fields and becomes negative at higher fields. Our results demonstrate that pressures below 8 GPa provide a non-chemical means to controllably reduce the bulk conductivity of Bi(2)Se(3).
J J Hamlin; J R Jeffries; N P Butch; P Syers; D A Zocco; S T Weir; Y K Vohra; J Paglione; M B Maple
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-12-20
Journal Detail:
Title:  Journal of physics. Condensed matter : an Institute of Physics journal     Volume:  24     ISSN:  1361-648X     ISO Abbreviation:  -     Publication Date:  2011 Dec 
Date Detail:
Created Date:  2011-12-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101165248     Medline TA:  J Phys Condens Matter     Country:  -    
Other Details:
Languages:  ENG     Pagination:  035602     Citation Subset:  -    
Department of Physics, University of California, San Diego, La Jolla, CA 92093, USA.
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