Circuit theory of unconventional superconductor junctions.
Circuit theory of unconventional superconductor junctions.
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非常规超导结的电路理论。
DOI：
10.1103/physrevlett.90.167003
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发表时间：
2002
影响因子：
8.6
通讯作者：
S. Kashiwaya
中科院分区：
文献类型：
--
作者：
Yukio Tanaka;Y. Nazarov;S. Kashiwaya
我们将超导电性的电路理论扩展到包含非传统超导结的介观系统中的输运和邻近效应。该方法充分考虑了在非常规超导体表面形成的零能Andreev束缚态。作为一个简单的应用，我们研究了与d波超导结串联的扩散正常金属的输运性质。我们揭示了Andreev束缚态的形成与邻近效应之间的竞争，这种竞争依赖于结界面上的晶体取向。
We extend the circuit theory of superconductivity to cover transport and proximity effect in mesoscopic systems that contain unconventional superconductor junctions. The approach fully accounts for zero-energy Andreev bound states forming at the surface of unconventional superconductors. As a simple application, we investigate the transport properties of a diffusive normal metal in series with a d-wave superconductor junction. We reveal the competition between the formation of Andreev bound states and proximity effect that depends on the crystal orientation of the junction interface.