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

J Chang, JS White, M Laver, CJ Bowell, Stephen Brown, Alexander Holmes, L Maechler, S Streassle, R Gilardi, S Gerber, T Kurosawa, N Momono, M Oda, M Ido, OJ Lipscombe, SM Hayden, CD Dewhurst, R Vavrin, J Gavilano, J KohlbrecherEdward Forgan, J Mesot

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

We use small-angle neutron scattering to study the superconducting vortex lattice in La2-xSrxCuO4 as a function of doping and magnetic field. We show that near optimally doping the vortex lattice coordination and the superconducting coherence length. 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 spin-density-wave order acts as a source of disorder on the vortex lattice.
Original languageEnglish
Pages (from-to)134520
Number of pages1
JournalPhysical Review B
Volume85
Issue number13
DOIs
Publication statusPublished - 1 Apr 2012

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