High field measurements of the Condon domain phase diagram in silver
| Autor: | V. S. Egorov, A. G. M. Jansen, W. Joss, V. A. Gasparov, Roman B. G. Kramer |
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| Rok vydání: | 2006 |
| Předmět: | |
| Zdroj: | Journal of Physics: Conference Series. 51:299-302 |
| ISSN: | 1742-6596 1742-6588 |
| DOI: | 10.1088/1742-6596/51/1/069 |
| Popis: | Condon domains form when the de Haas-van Alphen (dHvA) amplitude becomes large compared to the dHvA period, i.e. μ0∂M/∂B > 1, where M is the magnetization and B the induction. This equation defines the boundary between the homogeneous magnetization and the Condon domain state. The phase diagram in the (B, T) plane can be predicted using the Lifshitz-Kosevich formula. We present the Condon domain phase diagram for a silver single crystal measured in magnetic fields up to 28 T and temperatures Tdown to 1.3 K. A standard ac method with a pickup coil system is used at low frequency for the measurements of the de Haasvan Alphen (dHvA) e..ect. The transition point from the state of homogeneous magnetization to the inhomogeneous Condon domain state is found as the point where a small irreversibility in the dHvA magnetization arises, as manifested by an extremely nonlinear response in the pickup voltage showing threshold character. The experimental results are in good agreement with theoretical predictions based on the Lifshitz-Kosevich formula. |
| Databáze: | OpenAIRE |
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