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Nuclear Spin Relaxation Rate of Disordered $p_x+ip_y$-wave Superconductors | | Q. Han
; Z. D. Wang
; | | Date: |
8 Aug 2003 | | Subject: | Superconductivity | cond-mat.supr-con | | Abstract: | Based on an effective Hamiltonian with the binary alloy disorder model defined in the triangular lattice, the impurity scattering effects on the density of states and especially on the spin-lattice relaxation rate $1/T_1$ of $p_x+ip_y$-wave superconductors are studied by solving numerically the Bogoliubov-de Gennes equations. In the clean limit, the coherence peak of $1/T_1$ is observed as expected. More intriguingly, for strong scattering potential, the temperature dependence of $1/T_1$ exhibits the two different power law behaviors near $T_{ ext{c}}$ and at low temperatures, respectively, which is in good agreement with the nuclear quadrupolar resonance measurement. | | Source: | arXiv, cond-mat/0308160 | | Services: | Forum | Review | PDF | Favorites | |
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