Resistivity, thermopower and susceptibility of Y9CO7and local-mode effects
| Autor: | B V B Sarkissian |
|---|---|
| Rok vydání: | 1986 |
| Předmět: |
Superconductivity
Physics Physics and Astronomy (miscellaneous) Condensed matter physics Magnetism Phonon Metals and Alloys General Engineering Mode (statistics) Electrical resistivity and conductivity Condensed Matter::Superconductivity Seebeck coefficient Condensed Matter::Strongly Correlated Electrons Spin density Spin-½ |
| Zdroj: | Journal of Physics F: Metal Physics. 16:755-768 |
| ISSN: | 0305-4608 |
| DOI: | 10.1088/0305-4608/16/6/011 |
| Popis: | The compound Y9Co7 is an unusual system that exhibits strong spin fluctuations and superconductivity on cooling before losing its magnetism and becoming a true superconductor at lower temperatures. The author reports new measurements of the temperature dependence of the resistivity thermopower and susceptibility in Y9Co7. The data are discussed in terms of a simple picture involving 'hopping' of the Co atoms from one site to another along the c axis. The strong hopping creates large fluctuations in the spin density, which give rise to local phonon modes and determine the interplay of magnetism and superconductivity in Y9Co7. |
| Databáze: | OpenAIRE |
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