Por favor, use este identificador para citar o enlazar a este item:
http://hdl.handle.net/10261/7394
COMPARTIR / EXPORTAR:
SHARE CORE BASE | |
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL | DATACITE | |
Título: | Electronic structure of ultrathin bismuth films with A7 and black-phosphorus-like structures |
Autor: | Yaginuma, Shin; Nagaoka, Katsumi; Nagao, Tadaaki; Bihlmayer, Gustav; Koroteev, Yuri M.; Chulkov, Eugene V. CSIC ORCID; Nakayama, Tomonobu | Palabras clave: | Surface electronic structure Ultrathin film Structural transformation Scanning tunneling spectroscopy First-principles calculations Bismuth |
Fecha de publicación: | 25-dic-2007 | Editor: | Physical Society of Japan | Citación: | Journal of the Physical Society of Japan 77, 014701 (2008). | Resumen: | Using scanning tunneling spectroscopy and first-principles calculations, we have studied the electronic structure of two different ultrathin bismuth films on a Si(111)-7×7 substrate; a hexagonal film (HEX film) having a bulklike (A7-like) structure and a film having a black-phosphorus-like structure (BP film). The HEX film is metallic because of spin–orbit (SO)-split surface-state bands lying inside the projected bulk band gap near the Fermi level. Another SO-split surface state is also observed inside the SO gap. The BP film exhibits a significant reduction in metallicity in contrast to the HEX film. This is related to the formation of a very stable paired-layer structure, the mechanism of which is similar to that of the stabilization of semiconducting bulk black P. However, unlike bulk black P, a certain extent of metallicity still remains. This slight metallicity can be associated with buckling and strain in the BP film, which is analogous to the fact that shear angle distortion in bulk Bi is responsible for its semimetallicity. | Descripción: | 5 pages. | Versión del editor: | http://dx.doi.org/10.1143/JPSJ.77.014701 | URI: | http://hdl.handle.net/10261/7394 | DOI: | 10.1143/JPSJ.77.014701 | ISSN: | 0031-9015 |
Aparece en las colecciones: | (CFM) Artículos |
Mostrar el registro completo
CORE Recommender
SCOPUSTM
Citations
76
checked on 21-mar-2024
WEB OF SCIENCETM
Citations
66
checked on 25-feb-2024
Page view(s)
444
checked on 28-mar-2024
Google ScholarTM
Check
Altmetric
Altmetric
NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.