EFFECT OF QUANTUM FLUCTUATIONS OF VORTICES ON REVERSIBLE MAGNETIZATION IN HIGH-T(C) SUPERCONDUCTORS

被引：24
|
作者：
BULAEVSKII, LN
CHO, JH
MALEY, MP
KES, P
LI, Q
SUENAGA, M
LEDVIJ, M
机构：
[1] LEIDEN UNIV,KAMERLINGH ONNES LAB,2312 AV LEIDEN,NETHERLANDS
[2] BROOKHAVEN NATL LAB,DIV MAT SCI,UPTON,NY 11973
[3] IOWA STATE UNIV SCI & TECHNOL,AMES LAB,AMES,IA 50011
[4] IOWA STATE UNIV SCI & TECHNOL,DEPT PHYS,AMES,IA 50011
来源：
PHYSICAL REVIEW B | 1994年 / 50卷 / 05期
关键词：
D O I：
10.1103/PhysRevB.50.3507
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The field (B) and temperature dependence of reversible magnetization M in Bi (2:2:1:2) single crystals is measured for the orientation of the field along the c axis. The slope of the curve M vs lnB decreases remarkably with field below 70 K. In the mean-field approach this slope should be almost B independent. We explain this change of slope by the quantum fluctuations of vortices. We show that for magnetization quantum fluctuations are important at all temperatures except in a narrow region near T(c).
引用
收藏
页码：3507 / 3510
页数：4
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