Josephson effects in iron based superconductors
Josephson effects in iron based superconductors
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DOI：
10.1088/0953-2048/24/4/043001
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发表时间：
2011-02
影响因子：
3.6
通讯作者：
P. Seidel
中科院分区：
文献类型：
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作者：
P. Seidel
在铁基超导体（铁磷族化合物）被发现后不久，人们发现了它与传统超导体以及高温超导铜氧化物的重要区别：复杂的能带结构（多能隙、超导序参量的非传统对称性以及库珀对耦合机制的未知性质）导致了这些材料有趣的新性质。本文综述了铁磷族化合物中约瑟夫森效应的理论和实验研究现状。一方面，约瑟夫森效应的研究可以是一个有用的工具，以确定这些属性和测试不同的理论模型，但另一方面，这些属性可能会导致新类型的约瑟夫森结和未来的应用。
Just after the discovery of the iron based superconductors (iron pnictides) important differences from the conventional as well as to the high temperature superconducting cuprates were found. The complex band structure (multiple energy gaps, the unconventional symmetry of the superconducting order parameter and the unknown nature of the Cooper pair coupling mechanism) results in interesting new properties of these materials. This review summarizes the status of theoretical and experimental results on Josephson effects in the iron pnictides connected to these unusual properties. On one hand the investigation of Josephson effects can be a helpful tool to determine these properties and to test different theoretical models, but on the other hand these properties may lead to new kinds of Josephson junctions and future applications.