Quantum critical scaling and superconductivity in heavy electron materials

@article{Yang2015QuantumCS,
  title={Quantum critical scaling and superconductivity in heavy electron materials},
  author={Yi-feng Yang and David S. Pines and Nicholas J. Curro},
  journal={Physical Review B},
  year={2015},
  volume={92}
}
We use the two fluid model to determine the conditions under which the nuclear spin-lattice lattice relaxation rate, $T_1$, of candidate heavy quantum critical superconductors can exhibit scaling behavior and find that it can occur if and only if their "hidden" quantum critical spin fluctuations give rise to a temperature-independent intrinsic heavy electron spin-lattice relaxation rate. The resulting scaling of $T_1$ with the strength of the heavy electron component and the coherence… 

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