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Published byClarence Lyons Modified over 9 years ago
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Specific heat jump near the onset of co-existence with antiferromagnetsism
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In a BCS superconductor (s-wave) C/T c = 1.43 Now suppose superconductivity emerges from a pre-existing SDW order:
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Do simple mean-field: And then include gaussian fluctuations C/T c has a maximum at the onset of co-existence and drops on both sides of this critical doping
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Data: C. Meingast et al Theory: Vorontsov et al X =0.95 Co-existence state Mean-field
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BaFe2 (As 1-x P x ) 2 Data: A. Carrington et al Theory: D. Kuzmanovski et al Normal state Gaussian fluct.
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