dc.contributor.author | Wang, Y. H. | |
dc.contributor.author | Hsieh, David | |
dc.contributor.author | Pilon, Daniel Victor | |
dc.contributor.author | Fu, Liang | |
dc.contributor.author | Gardner, Dillon Richard | |
dc.contributor.author | Gedik, Nuh | |
dc.contributor.author | Lee, Young S. | |
dc.date.accessioned | 2012-03-08T19:27:05Z | |
dc.date.available | 2012-03-08T19:27:05Z | |
dc.date.issued | 2011-11 | |
dc.date.submitted | 2011-08 | |
dc.identifier.issn | 0031-9007 | |
dc.identifier.issn | 1079-7114 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/69605 | |
dc.description.abstract | A differential coupling of topological surface states to left- versus right-circularly polarized light is the basis of many optospintronics applications of topological insulators. Here we report direct evidence of circular dichroism from the surface states of Bi[subscript 2]Se[subscript 3] using laser-based time-of-flight angle-resolved photoemission spectroscopy. By employing a novel sample rotational analysis, we resolve unusual modulations in the circular dichroism photoemission pattern as a function of both energy and momentum, which perfectly mimic the predicted but hitherto unobserved three-dimensional warped spin texture of the surface states. By developing a microscopic theory of photoemission from topological surface states, we show that this correlation is a natural consequence of spin-orbit coupling. These results suggest that our technique may be a powerful probe of the spin texture of spin-orbit coupled materials in general. | en_US |
dc.description.sponsorship | United States. Dept. of Energy (Grant number DE-FG02-08ER46521) | en_US |
dc.description.sponsorship | Defense University Research Instrumentation Program (U.S.) (Grant number W911NF-09-1-0170) | en_US |
dc.description.sponsorship | National Science Foundation (U.S.). Materials Research Science and Engineering Centers (Program) (Grant number DMR - 0819762) | en_US |
dc.language.iso | en_US | |
dc.publisher | American Physical Society (APS) | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1103/PhysRevLett.107.207602 | en_US |
dc.rights | Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. | en_US |
dc.source | APS | en_US |
dc.title | Observation of a Warped Helical Spin Texture in Bi[subscript 2]Se[subscript 3] from Circular Dichroism Angle-Resolved Photoemission Spectroscopy | en_US |
dc.title.alternative | Observation of a Warped Helical Spin Texture in Bi2Se3 from Circular Dichroism Angle-Resolved Photoemission Spectroscopy | en_US |
dc.type | Article | en_US |
dc.identifier.citation | Wang, Y. et al. “Observation of a Warped Helical Spin Texture in Bi_{2}Se_{3} from Circular Dichroism Angle-Resolved Photoemission Spectroscopy.” Physical Review Letters 107.20 (2011): n. pag. Web. 8 Mar. 2012. © 2011 American Physical Society | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Physics | en_US |
dc.contributor.approver | Gedik, Nuh | |
dc.contributor.mitauthor | Wang, Y. H. | |
dc.contributor.mitauthor | Hsieh, David | |
dc.contributor.mitauthor | Pilon, Daniel Victor | |
dc.contributor.mitauthor | Fu, Liang | |
dc.contributor.mitauthor | Gardner, Dillon Richard | |
dc.contributor.mitauthor | Gedik, Nuh | |
dc.contributor.mitauthor | Lee, Young S. | |
dc.relation.journal | Physical Review Letters | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | Wang, Y.; Hsieh, D.; Pilon, D.; Fu, L.; Gardner, D.; Lee, Y.; Gedik, N. | en |
dc.identifier.orcid | https://orcid.org/0000-0002-8803-1017 | |
dc.identifier.orcid | https://orcid.org/0000-0003-2226-6443 | |
dc.identifier.orcid | https://orcid.org/0000-0002-2257-9944 | |
dc.identifier.orcid | https://orcid.org/0000-0002-6394-4987 | |
dc.identifier.orcid | https://orcid.org/0000-0002-7022-8313 | |
dc.identifier.orcid | https://orcid.org/0000-0002-0042-9195 | |
dspace.mitauthor.error | true | |
mit.license | PUBLISHER_POLICY | en_US |
mit.metadata.status | Complete | |