Theory of pairing symmetry in the vortex states


Yokoyama, Takehito and Ichioka, Yukio and Yanaka, Yukio and Golubov, Alexander (2010) Theory of pairing symmetry in the vortex states. Physica C: Superconductivity, 470 (19). pp. 766-770. ISSN 0921-4534

[img] PDF
Restricted to UT campus only
: Request a copy
Abstract:We investigate pairing symmetry in an Abrikosov vortex and vortex lattice. It is shown 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. In the vortex lattice of s-wave superconductor, we find that only odd-frequency pairing is present at the core centers, while at the midpoint of the vortex lines, only even-frequency pairing exists. Thus, the odd and even-frequency pairings also form the lattice in the vortex lattice state. We also propose a scanning tunneling microscope experiment using a superconducting tip to explore odd-frequency superconductivity.
Item Type:Article
Copyright:© 2010 Elsevier
Science and Technology (TNW)
Research Group:
Link to this item:
Official URL:
Export this item as:BibTeX
HTML Citation
Reference Manager


Repository Staff Only: item control page