Chin. Phys. Lett.  1998, Vol. 15 Issue (10): 742-744    DOI:
Original Articles |
Ginzburg-Landau Equations for (d+s)-Wave Superconductors in a Non-Fermi Liquid
HAN Qiang;ZHANG Li-yuan
Department of Physics, Peking University, Beijing 100871
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HAN Qiang, ZHANG Li-yuan 1998 Chin. Phys. Lett. 15 742-744
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Abstract The Ginzburg-Landau equations are microscopically derived for an anisotropic (d + s)-wave superconductor by assuming a non-Fermi-liquid normal state characterized by a nonvanishing exponent α. The transition temperature Tc as functions of α and the anisotropic parameter g which measures the ab anisotropy is studied. It is found that the anisotropic effect, which results in the enhancement of Tc and the nonzero bulk value of the s-wave order parameter, is strengthened due to the non-Fermi behavior.
Keywords: 74.20.De      74.72.-h     
Published: 01 October 1998
PACS:  74.20.De (Phenomenological theories (two-fluid, Ginzburg-Landau, etc.))  
  74.72.-h (Cuprate superconductors)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y1998/V15/I10/0742
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