Fishtail Hysteresis Loops Of Textured Yba2cu3o7 With High Jc
PHYSICA B(1994)
摘要
We report the studies of effects of high J(c) on fishtail hysteresis loops of highly textured YBa2Cu3O7 prepared by modified melt-textured growth (MMTG) method. It is found that: 1. The fishtail persists at least to T=20K; 2. The M(B) bumps are shifted to higher fields with decreasing temperature; 3. The bumps are shifted to higher fields for MMTG sample compared to single crystal YBa2Cu3O7; 4. Transport, J(c) does not show fishtail effect in the J(c)(B) curve.
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关键词
single crystal,hysteresis loop
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