1998/03/06 by T V Ramakrishnan, Ramakrishnan, T V
Physics and Astronomy · #FOS: Physical sciences #Superconductivity (cond-mat.supr-con) #cond-mat.supr-con
paper · pdf · doi:10.48550/arxiv.cond-mat/9803069
8 pages, IISC.AI figure
arxiv created 1998/03/06 · arxiv updated 2009/11/30
The interaction between planar quasiparticles in a dx2-y2 superconductor and quantized vortices associated with a magnetic field perpendicular to the plane is shown to induce a pair potential with dxy symmetry, out a phase with dx2-y2 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 also leading to an idxy pair potential are discussed. It is argued that such a fully gapped state may be the high field low temperature phase observed by Krishana, Ong et al in magnetothermal conductivity measurements of superconducting single crystal \em Bi - 2212.