Upper critical field in a spin-charge-separated superconductor
R. G. Dias, J. M. Wheatley
DOI 10.1103/PhysRevB.50.13887 · Physical Review B
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Abstract
It is demonstrated that the spatial decay of the pair propagator in a Luttinger liquid with spin-charge separation contains a logarithmic correction relative to the free-Fermi-gas result in a finite interval between the spin and charge thermal lengths. It is argued that similar effects can be expected in higher-dimensional systems with spin-charge separation and that the temperature dependence of the upper critical field Hc2 curve is a probe of this effect.
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