Electromagnetic properties of a Fermi liquid superconductor with singular Landau parameter $F_{1s}\to-1$

Tai-Kai Ng

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Electromagnetic properties of a Fermi liquid superconductor with singular Landau parameter $F_{1s}\to-1$

Tai-Kai Ng

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Abstract

The electromagnetic properties of a Fermi liquid superconductor with singular Landau parameter $F_{1s}\to-1$, corresponding to a state with marginal spin-charge separation (MSCS) is analyzed in this paper. We show that the MSCS state describes a strongly phase-disordered superconductor which is a diamagnetic metal with Drude-like optical conductivity. The phase diagram and electromagnetic properties of the MSCS state is found to be in qualitative agreement with what is observed in the pseudo-gap phase of (underdoped) High-$T_c$ cuprates. We predicted that vortices with {\em un-quantized} magnetic flux will be observed in the pseudo-gap phase.

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Tai-Kai Ng. 2007-02-20. Electromagnetic properties of a Fermi liquid superconductor with singular Landau parameter $F_{1s}\to-1$. https://arxiv.org/abs/cond-mat/0702450

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