Volovik effect on NMR measurements of unconventional superconductors

  title={Volovik effect on NMR measurements of unconventional superconductors},
  author={yunkyu Bang},
  journal={Physical Review B},
  • Y. Bang
  • Published 1 December 2011
  • Physics
  • Physical Review B
We studied the Volovik effect on the NMR measurements of the two unconventional superconducting (SC) states, the d-wave and $\pm$s-wave states. We showed the generic field dependencies of the spin-lattice relaxation rate $1/T_1$ and Knight shift $K$ at low temperature limit in the pure cases as: $1/T_1 \propto H \log H$, $K \propto \sqrt{H}$ for the d-wave, and $1/T_1 \propto H$, $K \propto H$ for the $\pm$s-wave state, respectively. Performing numerical calculations we showed that these… 
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