Continuous 3D freezing transition in layered superconductors

被引：15

作者：

Balents, L ^{[1
]}

Radzihovsky, L ^{[1
]}

机构：

[1] UNIV COLORADO, DEPT PHYS, BOULDER, CO 80309 USA

来源：

PHYSICAL REVIEW LETTERS | 1996年 / 76卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.76.3416

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We use Ginzburg-Landau theory to study the H-c2 transition in layered superconductors with field parallel to the layers, finding a continuous 3D freezing transition to a triangular vortex supersolid in the three-dimensional XY universality class. If screening effects are neglected, off-diagonal-long-range order survives only for d > d(lc) = 5/2. The partial breaking of the lowest Landau level degeneracy induced by layering leads to a local selection of a triangular lattice structure, in contrast to the global free energy minimization in, e.g., Abrikosov's calculation. Our results are relevant to artificially layered superconductors and to strongly anisotropic high T-c materials.

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页码：3416 / 3419

页数：4

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