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S-wave superconductivity near a surface | | K. Tanaka
; F. Marsiglio
; | | Date: |
4 Mar 2003 | | Journal: | Physica C 384, 356 (2003) | | Subject: | Superconductivity | cond-mat.supr-con | | Abstract: | We study the superconducting order parameter near a surface with the Bogoliubov-de Gennes formalism. For definiteness we use the attractive Hubbard model. Near a surface, the order parameter and the density distribution exhibit ``Friedel-like’’ oscillations. Although the local density of states is quite different from that in the bulk, the energy gap in the spectrum on a surface is almost the same as the bulk value. In the low-density limit, however, the energy gap tends to vanish on a surface. | | Source: | arXiv, cond-mat/0303069 | | Services: | Forum | Review | PDF | Favorites | |
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