Spin density wave induced disordering of the vortex lattice in superconducting La2-xSrxCuO4

J. Chang, J. S. White, M. Laver, C. J. Bowell, S. P. Brown, A. T. Holmes, L. Maechler, S. Strassle, R. Gilardi, S. Gerber, T. Kurosawa, N. Momono, M. Oda, M. Ido, O. J. Lipscombe, S. M. Hayden, C. D. Dewhurst, R. Vavrin, J. Gavilano, J. KohlbrecherE. M. Forgan, J. Mesot

Research output: Contribution to journalArticle (Academic Journal)peer-review

19 Citations (Scopus)

Abstract

We use small angle neutron scattering to study the superconducting vortex lattice in La$_{2-x}$Sr$_x$CuO$_4$ as a function of doping and magnetic field. We show that near optimally doping the vortex lattice coordination and the superconducting coherence length $\xi$ are controlled by a van-Hove singularity crossing the Fermi level near the Brillouin zone boundary. The vortex lattice properties change dramatically as a spin-density-wave instability is approached upon underdoping. The Bragg glass paradigm provides a good description of this regime and suggests that SDW order acts as a novel source of disorder on the vortex lattice.
Translated title of the contributionSpin density wave induced disordering of the vortex lattice in superconducting La2-xSrxCuO4
Original languageEnglish
Pages (from-to)134520
JournalPhysical Review B: Condensed Matter and Materials Physics
Volume85
DOIs
Publication statusPublished - 10 Apr 2012

Bibliographical note

Accepted in Phys. Rev. B

Keywords

  • cond-mat.supr-con

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