Various regimes of flux motion in Bi2Sr2CaCu2O8+δ single crystals

被引：6
|
作者：
Chen, WM [1 ]
Franck, JP [1 ]
Jung, J [1 ]
机构：
[1] Univ Alberta, Dept Phys, Edmonton, AB T6G 2J1, Canada
来源：
PHYSICA C | 2000年 / 341卷
关键词：
D O I：
10.1016/S0921-4534(00)00856-X
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Four regimes of vortex motion were identified in the magnetoresistance of Bi2Sr2CaCu2O8+delta single crystals: (1) thermally activated flux flow (TAFF) in samples with surface defects caused by thermal annealing; (2) TAFF-like plastic motion of highly entangled vortex liquid at low temperatures, with U-pl similar to (1 - T/T-c)/H-1/2; (3) pure free flux Row above the region of (2) in clean and optimally doped samples; or, in its place, (4) a combination of (2) and (3). This analysis gives an overall picture of flux motion in Bi cuprates.
引用
收藏
页码：1195 / 1196
页数：2
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