Mixed state of a π-striped superconductor

M. Zelli; Catherine Kallin; A. John Berlinsky

doi:10.1103/PhysRevB.84.174525

← Back to search

Mixed state of a π-striped superconductor

M. Zelli, Catherine Kallin, A. John Berlinsky

DOI 10.1103/PhysRevB.84.174525 · Physical Review B

T1

Active bibliographic source — not scientific approval

Bibliographic access preserves source history; it does not approve extracted materials or validate reported claims. Review warnings on each occurrence separately.

Abstract

A model of an antiphase modulated d-wave superconductor has been proposed to describe the decoupling between Cu-O planes in 1/8 doped La2−xBaxCuO4. Unlike a uniform d-wave superconductor, this model exhibits an extended Fermi surface. Within Bogoliubov–de Gennes theory, we study the mixed state of this model and compare it to the case of a uniform d-wave superconductor. We find a periodic structure of the low-energy density of states, with a period that is proportional to B, corresponding to Landau levels that are a coherent mixture of particles and holes. These results are also discussed in the context of experiments which observe quantum oscillations in the cuprates, and are compared to those for models in which the Fermi surface is reconstructed due to translational symmetry breaking in the nonsuperconducting state and to a model of a Fermi-arc metal.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
La2-xBaxCuO4 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown