VORTEX-ANTIVORTEX PAIR DISSOCIATION IN TWO-DIMENSIONAL SUPERCONDUCTORS
VORTEX-ANTIVORTEX PAIR DISSOCIATION IN TWO-DIMENSIONAL SUPERCONDUCTORS
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DOI：
10.1103/physrevlett.47.534
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发表时间：
1981-01-01
影响因子：
8.6
通讯作者：
KADIN, AM
中科院分区：
文献类型：
--
作者：
EPSTEIN, K;GOLDMAN, AM;KADIN, AM
利用电流诱导涡旋-反涡旋解束缚的非线性模型，分析了高方块电阻Hg-LiNbO 3薄膜超导转变下的非线性I-V特性。这些特性可以用V ε I a（T）来拟合，其中a（T）是a真实的超电子密度ns（T）的量度。二维超导薄膜中Kosterlitz-Berrzinskii跃迁的普遍关系式得到了遵守。
The nonlinear I− V characteristics below the superconducting transition of high-sheet-resistance Hg-Xe films have been analyzed with use of a model in which the nonlinearity is a consequence of current-induced vortex-antivortex unbinding. The characteristics can be fitted by V∼ I a (T), where a (T) is a measure of the a real superelectron density n s (T). The universal relations predicted for the Kosterlitz-Thouless-Berezinskii transition in two dimensional superconducting films are obeyed.