| 1T-TiSe2: semimetal or semiconductor? | |
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MedLine Citation:
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PMID: 19113593 Owner: NLM Status: PubMed-not-MEDLINE |
Abstract/OtherAbstract:
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Even though the semimetallic behavior of 1T-TiSe2 seemed to be well established by band structure calculations and photoemission results, this conclusion has been challenged recently. Two high-resolution photoemission investigations deduced semiconducting behavior, however with a very small band gap. Such conclusion from photoemission is afflicted, in principle, by the problem of determining an unoccupied conduction band by photoemission. This problem is solved here by the idea of H2O adsorption onto the van der Waals-like surface, causing a distinct bending of the bands and resulting in a filled lowest conduction band. The detailed analysis yields undoubtedly semiconducting behavior for 1T-TiSe2 and interesting properties of a semiconductor with extremely small band gap. |
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Authors:
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Julia C E Rasch; Torsten Stemmler; Beate Müller; Lenart Dudy; Recardo Manzke |
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Publication Detail:
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Type: Journal Article Date: 2008-12-05 |
Journal Detail:
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Title: Physical review letters Volume: 101 ISSN: 0031-9007 ISO Abbreviation: Phys. Rev. Lett. Publication Date: 2008 Dec |
Date Detail:
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Created Date: 2008-12-30 Completed Date: 2009-02-03 Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 0401141 Medline TA: Phys Rev Lett Country: United States |
Other Details:
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Languages: eng Pagination: 237602 Citation Subset: - |
Affiliation:
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Institut für Physik, Humboldt-Universität zu Berlin, Newtonstrasse 15, 12489 Berlin, Germany. rasch@ill.fr |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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