Time-reversal symmetry breaking and spontaneous currents ins-wave/normal-metal/d-wave superconductor sandwiches
Autor: | Andrea Huck, Manfred Sigrist, Anne van Otterlo |
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Rok vydání: | 1997 |
Předmět: | |
Zdroj: | Physical Review B. 56:14163-14167 |
ISSN: | 1095-3795 0163-1829 |
DOI: | 10.1103/physrevb.56.14163 |
Popis: | We study the physical properties of an $s$-wave--normal-metal--$d$-wave junction in terms of the Andreev bound-state solutions to the Bogoliubov--de Gennes equation in the normal-metal layer. The phase dependence of bound states with different orientations leads to superconducting states with broken time-reversal symmetry for generic orientations of the $d$-wave superconductor crystal. The occurrence of such a state and the associated spontaneous supercurrent along the junction and magnetic field is analyzed also in the framework of Ginzburg-Landau theory. |
Databáze: | OpenAIRE |
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