Effects of point defects on the phase diagram of vortex states in high-Tc superconductors in the B || c axis

被引：78

作者：

Nonomura, Y ^{[1
]}

Hu, X ^{[1
]}

机构：

[1] Natl Inst Mat Sci, Tsukuba, Ibaraki 3050047, Japan

来源：

PHYSICAL REVIEW LETTERS | 2001年 / 86卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.86.5140

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The phase diagram for the vortex states of high-T-c superconductors with point defects in the (B) over right arrow \ \ c axis is drawn by large-scale Monte Carlo simulations. The vortex slush (VS) phase is found between the vortex glass (VG) and vortex liquid (VL) phases. The first-order transition between this novel normal phase and the VL phase is characterized by a sharp jump of the density of dislocations. The first-order transition between the Bragg glass (BG) and VG or VS phases is also clarified, These two transitions are compared with the melting transition between the BG and VL phases.

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页码：5140 / 5143

页数：4

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