FLUX-LINE RESPONSE IN 2H-NBSE2 INVESTIGATED BY MEANS OF THE VIBRATING SUPERCONDUCTOR METHOD

被引:26
作者
DANNA, G
ANDRE, MO
BENOIT, W
RODRIGUEZ, E
RODRIGUEZ, DS
LUZURIAGA, J
WASCZAK, JV
机构
[1] COMIS NACL ENERGIA ATOM,CTR ATOM BARILOCHE,RA-8400 BARILOCHE,ARGENTINA
[2] AT&T BELL LABS,MURRAY HILL,NJ 07974
来源
PHYSICA C | 1993年 / 218卷 / 1-2期
关键词
D O I
10.1016/0921-4534(93)90288-2
中图分类号
O59 [应用物理学];
学科分类号
摘要
We measure transverse AC losses in the low- and high-amplitude regime of 2H-NbSe2 single crystals using vibrating superconductor methods. The measurements are sensitive to small deviations of the critical state. The data constitute evidence for a peak effect of the critical current as a function of the temperature in this compound. We construct in the H-T phase diagram the ''peak-effect'' line which is supposed to mark an abrupt cross-over in the vortex-pinning regime.
引用
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页码:238 / 244
页数:7
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