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Magnet Field Induced idxy Order in a dx2-y2 Superconductor | | T V Ramakrishnan
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6 Mar 1998 | | Subject: | Superconductivity | cond-mat.supr-con | | Abstract: | 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. | | Source: | arXiv, cond-mat/9803069 | | Services: | Forum | Review | PDF | Favorites | |
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