摘要
We investigate the universal electronic transport for a mixed (Formula presented)-wave superconductor in the presence of an anisotropic elliptical Fermi surface. Similar to the universal low-temperature transport predicted in a (Formula presented)-wave superconductor with a circular Fermi surface, anisotropic universal features are found in the low-temperature microwave conductivity and thermal conductivity in the anisotropic system. The effects of anisotropy on the penetration depth, impurity induced (Formula presented) suppression, and the zero-frequency density of states are also considered. While a small amount of anisotropy can lead to a strong suppression of the effective scattering rate, and hence the density of states at zero frequency, experimental data suggest that large effects are restored by a negative (Formula presented)-component gap admixture.
原文 | 英語 |
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頁(從 - 到) | 3417-3424 |
頁數 | 8 |
期刊 | Physical Review B - Condensed Matter and Materials Physics |
卷 | 58 |
發行號 | 6 |
DOIs | |
出版狀態 | 已發佈 - 1998 |
ASJC Scopus subject areas
- 電子、光磁材料
- 凝聚態物理學