Impurity states and marginal stability of unconventional ...
Impurity states and marginal stability of unconventional ...
Impurity states and marginal stability of unconventional ...
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Lifshitz tails in SC make it gapless s wave<br />
superconductivity:<br />
rare but important fluctuations are the ones where<br />
local concentration <strong>of</strong> impurities exceed critical <strong>and</strong><br />
Locally we have a puddle <strong>of</strong> normal metal inside<br />
SC. These regions always exist no matter how small<br />
probability is.<br />
Tail at E=0 grows with doping<br />
Gapless SC<br />
region
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