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Topological surface states with persistent high spin polarization across the Dirac point in Bi2Te2Se and Bi2Se2Te
- Source :
- Physical Review Letters. 2012. Vol. 109, № 16. P. 166802-1-166802-5, Digital.CSIC. Repositorio Institucional del CSIC, instname
- Publication Year :
- 2012
-
Abstract
- Helical spin textures with marked spin polarizations of topological surface states have been unveiled for the first time by state-of-the-art spin- and angle-resolved photoemission spectroscopy for two promising topological insulators, Bi2Te2Se and Bi2Se2Te. Their highly spin-polarized natures are found to be persistent across the Dirac point in both compounds. This novel finding paves a pathway to extending the utilization of topological surface states of these compounds for future spintronic applications. © 2012 American Physical Society.<br />This work was financially supported by KAKENHI (Grants Nos. 19340078, 20340092, 23340105, and 23244066), Grant-in-Aid for Scientific Research (A) and (B) of JSPS. K. A.K. and O.E. T. acknowledge financial support by the RSSF and RFBR (Grant No. 12-02-00226).
- Subjects :
- топологические изоляторы
Condensed Matter::Strongly Correlated Electrons
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters. 2012. Vol. 109, № 16. P. 166802-1-166802-5, Digital.CSIC. Repositorio Institucional del CSIC, instname
- Accession number :
- edsair.dedup.wf.001..7d89754ec3fdbc9491cfa8de189c1117