Electronic properties of disordered valence-bond stripes in cuprate superconductors

Details Electronic properties of disordered valence-bond stripes in cuprate superconductors Electronic properties of disordered valence-bond stripes in cuprate superconductors

2008-03-14

arxiv.org/abs/0803.2038v2

Phys. Rev. B 78, 144508 (2008)

Physics

Condensed Matter

Superconductivity

6 pages, 5 figs; (v2) slightly extended version, as published

Scientific paper

10.1103/PhysRevB.78.144508

We calculate electronic single-particle properties of short-range ordered stripe states, using Monte-Carlo simulations of collective charge-density wave (CDW) order parameters coupled to fermions on a 2d square lattice. For superconducting bond-centered stripes with a d-wave form factor, we find a valence-bond "glass" which coexists with low-energy quasiparticles featuring interference phenomena, in agreement with recent scanning-tunneling-microscopy (STM) measurements on underdoped BSCCO and CaNaCuOCl. Together with earlier work, our calculations provide a link between CDW features seen in STM and those in magnetic neutron scattering.

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