dorsal/arxiv
View SchemaDensity of States and NMR Relaxation Rate in Anisotropic Superconductivity with Intersecting Line Nodes
| Authors | Yasumasa Hasegawa |
|---|---|
| Categories | |
| ArXiv ID | supr-con/9609003 |
| URL | https://arxiv.org/abs/supr-con/9609003 |
| DOI | 10.1143/JPSJ.65.3131 |
Abstract
We show that the density of states in an anisotropic superconductor with intersecting line nodes in the gap function is proportional to $E log (\alpha \Delta_0 /E)$ for $|E| << \Delta_0$, where $\Delta_0$ is the maximum value of the gap function and $\alpha$ is constant, while it is proportional to $E$ if the line nodes do not intersect. As a result, a logarithmic correction appears in the temperature dependence of the NMR relaxation rate and the specific heat, which can be observed experimentally. By comparing with those for the heavy fermion superconductors, we can obtain information about the symmetry of the gap function.
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"abstract": "We show that the density of states in an anisotropic superconductor with\nintersecting line nodes in the gap function is proportional to $E log (\\alpha\n\\Delta_0 /E)$ for $|E| \u003c\u003c \\Delta_0$, where $\\Delta_0$ is the maximum value of\nthe gap function and $\\alpha$ is constant, while it is proportional to $E$ if\nthe line nodes do not intersect. As a result, a logarithmic correction appears\nin the temperature dependence of the NMR relaxation rate and the specific heat,\nwhich can be observed experimentally. By comparing with those for the heavy\nfermion superconductors, we can obtain information about the symmetry of the\ngap function.",
"arxiv_id": "supr-con/9609003",
"authors": [
"Yasumasa Hasegawa"
],
"categories": [
"supr-con",
"cond-mat.supr-con"
],
"doi": "10.1143/JPSJ.65.3131",
"title": "Density of States and NMR Relaxation Rate in Anisotropic Superconductivity with Intersecting Line Nodes",
"url": "https://arxiv.org/abs/supr-con/9609003"
},
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