Nodal quasi-particles and coexisting orders in striped superconductors

Details Nodal quasi-particles and coexisting orders in striped superconductors Nodal quasi-particles and coexisting orders in striped superconductors

2000-10-23

arxiv.org/abs/cond-mat/0010350v3

Phys. Rev. Lett.86, 167011 (2001)

Physics

Condensed Matter

Superconductivity

4 pages, 1 figure, 1 table new version; vastly improved figure caption

Scientific paper

10.1103/PhysRevLett.87.167011

We study the properties of a quasi-one dimensional superconductor which consists of an alternating array of two inequivalent chains. This model is a simple charicature of a locally striped high temperature superconductor, and is more generally a theoretically controllable system in which the superconducting state emerges from a non-Fermi liquid normal state. Even in this limit, ``d-wave like'' order parameter symmetry is natural, but the superconducting state can either have a complete gap in the quasi-particle spectrum, or gapless ``nodal'' quasiparticles. We also find circumstances in which antiferromagnetic order (typically incommensurate) coexists with superconductivity.

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