Dynamics of the vortex-glass transition

被引:0
|
作者
Bel, Golan [1 ]
Rosenstein, Baruch [1 ,2 ]
机构
[1] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel
[2] Natl Chiao Tung Univ, Natl Ctr Theoret Sci & Electrophys Dept, Hsinchu 30050, Taiwan
来源
关键词
glass transition; irreversibility line;
D O I
暂无
中图分类号
O414.1 [热力学];
学科分类号
摘要
The dynamic of moving vortex matter is considered in the framework of the time dependent Ginzburg-Landau equation beyond linear response. Both disorder and thermal fluctuations are included using the Martin-Siggia-Rose formalism within the lowest Landau level approximation. We determine the critical current as function of magnetic field and temperature. The surface in the J-B-T space defined by the function separates between the dissipative moving vortex matter regime (qualitatively appearing as either the vortex creep and flux flow) and dissipation less current state in which vortices are pinned creating an amorphous vortex "glass". Both the thermal depinning and the depinning by a driving force are taken into account. The static irreversibility line is compared to experiments and is consistent with the one obtained in the replica approach. The non-Ohmic I-V curve (in the depinned phase) is obtained and resistivity compared with experiments in layered superconductors and thin films.
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页码:833 / +
页数:2
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