Surface and image-potential states on MgB2 (0001) surfaces
We present self-consistent pseudopotential calculations of surface and image-potential states on MgB2(0001) for both B-terminated (B−t) and Mg-terminated (Mg−t) surfaces. We find a variety of very clear surface and subsurface states as well as resonance image-potential states n=1,2 on both surfaces....
| Autores: | , , |
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| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2001 |
| País: | España |
| Institución: | Consejo Superior de Investigaciones Científicas (CSIC) |
| Repositorio: | DIGITAL.CSIC. Repositorio Institucional del CSIC |
| OAI Identifier: | oai:digital.csic.es:10261/226083 |
| Acceso en línea: | http://hdl.handle.net/10261/226083 |
| Access Level: | acceso abierto |
| Sumario: | We present self-consistent pseudopotential calculations of surface and image-potential states on MgB2(0001) for both B-terminated (B−t) and Mg-terminated (Mg−t) surfaces. We find a variety of very clear surface and subsurface states as well as resonance image-potential states n=1,2 on both surfaces. The surface layer density of states (DOS) at EF is increased by 55% at the B−t and by 90% at the Mg−t surface compared to DOS in the corresponding bulk layers. |
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