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Two phase transitions in (s+id)-wave Bardeen-Cooper-Schrieffer superconductivity | | Angsula Ghosh
; Sadhan K. Adhikari
; | | Date: |
19 May 1998 | | Journal: | Journal of Physics: Cond. Mat. 10 (1998) L319 | | Subject: | Strongly Correlated Electrons; Superconductivity | cond-mat.str-el cond-mat.supr-con | | Abstract: | We establish universal behavior in temperature dependencies of some observables in $(s+id)$-wave BCS superconductivity in the presence of a weak $s$ wave. There also could appear a second second-order phase transition. As temperature is lowered past the usual critical temperature $T_c$, a less ordered superconducting phase is created in $d$ wave, which changes to a more ordered phase in $(s+id)$ wave at $T_{c1}$ ($< T_c$). The presence of two phase transitions manifest in two jumps in specific heat at $T_c$ and $T_{c1}$. The temperature dependencies of susceptibility, penetration depth, and thermal conductivity also confirm the new phase transition. | | Source: | arXiv, cond-mat/9805234 | | Services: | Forum | Review | PDF | Favorites | |
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