| 1 | Memory Effect in Ceramic Superconductors显示文摘We measured the time decay of the magnetic moment of high Tc supercon-ductors YBa_(2)Cu_(3)O_(7-δ);ceranic samples and found the memory effect which has hitherto been reported ouly in single crystals.The temperature and feld ranges,especialy the memory time are diferent from those of the latter.We believed that the memory phenomenon in ceramic samples at liquid nitrogen temperature can only be understood in a combined picture of both fux creep and glass behaviour. | JIN Xin ZHANG Yitong YAN Yong JI Helin LU Ruixi LU Mu YAO Xixian | 1991 | Chinese Physics Letters1991，8，11： | 0 |
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