Loading...
research article
Spin density wave induced disordering of the vortex lattice in superconducting La(2−x)Sr(x)CuO(4)
2012
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 ξ 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.
Type
research article
Authors
•
White, J. S.
•
Laver, M.
•
Bowell, C. J.
•
Brown, S. P.
•
Holmes, A. T.
•
Maechler, L.
•
Strässle, S.
•
Gilardi, R.
•
Gerber, S.
Publication date
2012
Published in
Volume
85
Issue
13
Article Number
134520
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
May 23, 2012
Use this identifier to reference this record