Abstract
We study the local density of states at the surface of a chiral p-wave superconductor in the presence of a weak magnetic field. As a result, the formation of low-energy Andreev bound states is either suppressed or enhanced by an applied magnetic field, depending on its orientation with respect to the chirality of the p-wave superconductor. Similarly, an Abrikosov vortex, which is situated not too far from the surface, leads to a zero-energy peak of the density of states, if its chirality is the same as that of the superconductor, and to a gap structure for the opposite case. We explain the underlying principle of this effect and propose a chirality sensitive test on unconventional superconductors.
Journal
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- PHYSICAL REVIEW Lett
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PHYSICAL REVIEW Lett 100 (17), 177002-177002, 2008-05
American Physical Society
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Details 詳細情報について
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- CRID
- 1050001338797990528
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- NII Article ID
- 120001151496
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- HANDLE
- 2237/11283
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- ISSN
- 00319007
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- Text Lang
- en
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- Article Type
- journal article
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- Data Source
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- IRDB
- CiNii Articles