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dc.contributor.authorAn, Yong Q.
dc.contributor.authorGreen, Avery J.
dc.contributor.authorDiebold, Alain C.
dc.creator
dc.date.accessioned2017-05-04T15:34:31Z
dc.date.available2017-05-04T15:34:31Z
dc.date.issued2016
dc.identifier.citationAn, Y. Q., Green, A. J., & Diebold, A. C. (2016). Tracking quintuple layer oxidation on cleaved Bi2Se3 by optical second-harmonic anisotropy. Physical Review B, 93, 241308(R). doi:10.1103/PhysRevB.93.241308en_US
dc.identifier.issn2469-9950
dc.identifier.urihttp://hdl.handle.net/1951/69161
dc.description.abstractWe find that the major and minor intensity lobes of a measured rotational-anisotropy pattern of optical second-harmonic generation (SHG) from a cleaved Bi2Se3 (111) surface can gradually change with time and eventually switch their relative amplitudes. This switching provides a means for tracking the progress of surface oxidation inside a quintuple layer of Bi2Se3. At different stages of oxidation, we perform pump-probe SHG experiments to study charge dynamics at the oxide/Bi2Se3 interface and to detect spin polarization of photoexcited surface states in the Bi2Se3 topological insulator.en_US
dc.description.sponsorshipCollege of Nanoscale Science and Engineering, SUNY Polytechnic Institute, Albany, New York 12203, USAen_US
dc.language.isoen_USen_US
dc.publisherPhysical Review Ben_US
dc.subjectrotational-anisotropy patternen_US
dc.subjectintensity lobesen_US
dc.subjectamplitudeen_US
dc.subjectsurface oxidationen_US
dc.subjectspin polarizationen_US
dc.subjectanisotropyen_US
dc.titleTracking quintuple layer oxidation on cleaved Bi2Se3 by optical second-harmonic anisotropyen_US
dc.title.alternativePhysical Review Ben_US
dc.typeArticleen_US


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