Theory of pairing symmetry inside the Abrikosov vortex core


Yokoyama, Takehito and Tanaka, Yukio and Golubov, Alexander A. (2008) Theory of pairing symmetry inside the Abrikosov vortex core. Physical Review B: Condensed matter and materials physics, 78 (1). 012508. ISSN 1098-0121

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Abstract:We show that the Cooper pair wave function at the center of an Abrikosov vortex with vorticity m has a different parity with respect to frequency from that in the bulk if m is an odd number, while it has the same parity if m is an even number. As a result, in a conventional vortex with m=1, the local density of states at the Fermi energy has a maximum minimum at the center of the vortex core in an even odd- frequency superconductor. We propose a scanning tunneling microscope experiment using a superconducting tip to explore odd-frequency superconductivity.
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Copyright:© 2008 American Physical Society
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