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Magnetic-field-induced $id_\hspace{1mm}{xy}$ order in a $d_{x^2-y^2}$ superconductor

Ramakrishnan, TV (1998) Magnetic-field-induced $id_\hspace{1mm}{xy}$ order in a $d_{x^2-y^2}$ superconductor. In: Journal of the Physics and Chemistry of Solids, 59 (10-12). pp. 1750-1753.

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The interaction between planar quasiparticles in a $d_{x^2-y^2}$ superconductor and quantized vortices associated with a magnetic field perpendicular to the plane is shown to induce a pair potential with $d_{xy}$ symmetry, out of phase with the $d_{x^2-y^2}$ order. A microscopic calculation of a process involving quasiparticle scattering by the supercurrent around a vortex and Andreev reflection from its core is presented. Other processes that also lead to an $id_{xy}$ pair potential are discussed. It is argued that such a fully gapped state may be the high-field low temperature phase observed by Krishana and Ong et al. in magnetothermal conductivity measurements of superconducting single-crystal Bi-2212.

Item Type: Journal Article
Publication: Journal of the Physics and Chemistry of Solids
Publisher: Elsevier
Additional Information: Copyright of this article belongs to Elsevier.
Keywords: Superconductors;Quasiparticle–vortex interaction;idxy order;Gapped phase
Department/Centre: Division of Physical & Mathematical Sciences > Physics
Date Deposited: 11 Jul 2007
Last Modified: 19 Sep 2010 04:35
URI: http://eprints.iisc.ac.in/id/eprint/10052

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