MAGNETIC RELAXATION BEHAVIOUR OF YBCO6.9 (123) AND BSCCO8 (2212) CRYSTALS

被引：3

作者：

Cohen, L. F. ^{[1
]}

Lacey, D. ^{[1
]}

Perkins, G. ^{[1
]}

Caplin, A. D. ^{[1
]}

Abell, S. ^{[2
]}

Zhukov, A. A. ^{[3
]}

Voronkova, V. I. ^{[3
]}

机构：

[1] Univ London Imperial Coll Sci Technol & Med, Blackett Lab, Ctr HTS, London SW7 2BZ, England

[2] Univ Birmingham, NCGF, Birmingham B15 2TT, W Midlands, England

[3] Moscow State Univ, Dept Phys, Moscow 117234, Russia

来源：

PHYSICA C-SUPERCONDUCTIVITY AND ITS APPLICATIONS | 1994年 / 235-40卷

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1016/0921-4534(94)90969-5

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We have studied the form of the irreversible magnetic relaxation in high quality YBCO (123) and BSCCO (2212) crystals with the magnetic field applied parallel to the crystal c axis. In YBCO crystals, three different regimes of vortex dynamics can be discerned over a wide region of the H-T plane; with application of a scaling field, the data taken at different temperatures collapse onto a single curve. In BSCCO the absolute value of the relaxation is higher than in YBCO, reflecting the weaker pinning in this more two dimensional system and only one of the three regimes of relaxation behaviour seen in YBCO, is observed.

引用

页码：2885 / 2886

页数：2