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Properties of parallel upper critical field within Continuous Ginzburg-Landau model | | L. Wang
; H. S. Lim
; C. K. Ong
; | | Date: |
18 Dec 2001 | | Journal: | Physica C 383 (2002) 247--255 | | Subject: | Superconductivity | cond-mat.supr-con | | Abstract: | In this paper, we employ a continuous Ginzburg-Landau model to study the behaviors of the parallel upper critical field of an intrinsically-layered superconductor. Near $T_c$ where the order parameter is nearly homogeneous, the parallel upper critical field is found to vary as $(1-T/T_c)^{1/2}$. With a well-localized order parameter, the same field temperature dependence holds over the whole temperature range. The profile of the order parameter at the parallel upper critical field may be of a Gaussian type, which is consistent with the usual linear Ginzburg-Landau theory. In addition, the influences of the unit cell dimension and the average effective masses on the parallel upper critical field and the associated order parameter are also addressed. | | Source: | arXiv, cond-mat/0201322 | | Services: | Forum | Review | PDF | Favorites | |
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