## Abstract

There are indications that some high temperature unconventional superconductors have a "complex" d-wave order parameter (with an admixture of s-wave) leading to nonzero energy gap. Since the coherence length is short and the Fermi energy is relatively small the quasiclassical approach is inapplicable and the more complicated Bogoliubov-deGennes equations should be used to investigate the excitation spectrum of such a material in a magneric field. It turns out that equations for the chiral d-wave superconductor simplify considerably and is the basis for any superconductor of that type with a sufficiently large gap. The spectrum of core excitations of the Abrikosov vortex in an anisotropic 3D sample exhibits several features. Unlike in conventional and gapless superconductors the core has a single excitation mode of order energetic gap for each value of momentum along the field. This has a large impact on thermal transport and vortex dynamics.

Original language | English |
---|---|

Pages (from-to) | 289-302 |

Number of pages | 14 |

Journal | Journal of Low Temperature Physics |

Volume | 173 |

Issue number | 5-6 |

State | Published - Dec 2013 |

### Bibliographical note

Funding Information:B.Y.S. and I.S. acknowledge support from the Israel Scientific Foundation.

### Funding

B.Y.S. and I.S. acknowledge support from the Israel Scientific Foundation.

Funders | Funder number |
---|---|

Israel Scientific Foundation |

## Keywords

- Chiral d-wave superconductor
- Heat transport
- Vortex core excitations