MEASUREMENT OF ANISOTROPIC ACTIVATION ENERGIES IN HIGH-Tc SUPERCONDUCTORS |
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| Affiliation: | Department of Physics and State Key Laboratory of Solid State Microstructure, Nanjing University, Nanjing 210008, China |
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| Abstract: | For single crystalline and melt-textured samples there exist several different activation energies for fluxoid creep, which are related to various vortex orientations and hopping directions. We discuss how to obtain these anisotropic activation energies from magnetic relaxation data and present measured results of a melt-textured YBCO sample. |
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