### Abstract

Based on the quasi-classical theory, we calculate the zero energy density of states N(B) in the mixed state for a type II superconductor. N(B) is related to the sommerfeld coefficient γ(B), which gives us useful information for a superconducting gap. The linear portion in γ(B) relative to B _{c2} and its slope in a low field reflect the gap anisotropy, so that we can distinguish the nodal gap and the anisotropic full gap, and estimate the magnitude of the gap anisotropy.

Original language | English |
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Pages (from-to) | 1362-1364 |

Number of pages | 3 |

Journal | Journal of Physics and Chemistry of Solids |

Volume | 66 |

Issue number | 8-9 |

DOIs | |

Publication status | Published - Jan 1 2005 |

### Keywords

- A.Superconductivity
- D.Electronic structure
- D.Superconductors

### ASJC Scopus subject areas

- Chemistry(all)
- Materials Science(all)
- Condensed Matter Physics

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## Cite this

Nakai, N., Miranović, P., Ichioka, M., & Machida, K. (2005). Theoretical study on the field dependence of the zero energy density of states in an anisotropic gap superconductors.

*Journal of Physics and Chemistry of Solids*,*66*(8-9), 1362-1364. https://doi.org/10.1016/j.jpcs.2005.05.011