Leggett’s mode in Mg1−x AlxB2
| Autor: | S. I. Krasnosvobodtsev, Hoang Van Hoai, Evgenii G. Maksimov, S. A. Kuzmichev, S. N. Tchesnokov, M. G. Mikheev, Ya. G. Ponomarev, Boris M. Bulychev, M. V. Sudakova |
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| Rok vydání: | 2007 |
| Předmět: | |
| Zdroj: | JETP Letters. 85:46-50 |
| ISSN: | 1090-6487 0021-3640 |
| DOI: | 10.1134/s0021364007010092 |
| Popis: | A detailed investigation of multiband superconductivity and Leggett’s mode in the Mg1−x AlxB2 (0 ≤ x ≤ 0.45) system was carried out using tunneling and Andreev spectroscopy. Temperature dependences of superconducting gaps Δσ and Δπ and their variation upon the degree of disorder and the Al concentration were studied. The dependence of the Leggett’s mode energy e0 upon the values of the gaps Δσ and Δπ has been derived. |
| Databáze: | OpenAIRE |
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