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Comment on ``$T$-dependence of the magnetic penetration depth in unconventional superconductors at low temperatures: Can it be linear?"

P. J. Hirschfeld·M. -R. Li·P. Wölfle
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Abstract

We comment on a recent letter by Schopohl and Dolgov (SD) which raised the possibility that a d-wave superconductor might be thermodynamically unstable in the limit $T\to 0$. The point of our comment is that this instability can be inevitably prevented by the non-local effects.

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P. J. Hirschfeld, M. -R. Li, P. Wölfle. 1998-10-31. Comment on ``$T$-dependence of the magnetic penetration depth in unconventional superconductors at low temperatures: Can it be linear?". https://doi.org/10.1103/physrevlett.81.4024

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