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Depinning line of granular YBa2Cu3O7?δ measured with vibrating-reed method |
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| Authors: | Y Fujii H Hamada K Takahashi Y Yamamoto T Shigematsu M Nakamura M Yamaguchi and T Shigi |
| Abstract: | The depinning temperatures in YBa2Cu3O7−δ ceramics and grains have been studied at magnetic field up to 4 T and various amplitudes of vibration. For ceramics sample, large amplitude dependence of depinning temperature TD was observed, which indicate the decoupling of grains. In the case of a suspension sample (grain), TD was much lower than that of ceramics. |
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