Direct observation of the flux-line vortex glass phase in a type II superconductor.
The order of the vortex state in La1.9Sr0.1CuO4 is probed using muon-spin rotation and small-angle neutron scattering. A transition from a Bragg glass to a vortex glass is observed, where the latter is composed of disordered vortex lines. In the vicinity of the transition the microscopic behavior reflects a delicate interplay of thermally induced and pinning-induced disorder.
Divakar
U
U
School of Physics and Astronomy, University of St. Andrews, St. Andrews, Fife KY16 9SS, United Kingdom.
Drew
A J
AJ
Lee
S L
SL
Gilardi
R
R
Mesot
J
J
Ogrin
F Y
FY
Charalambous
D
D
Forgan
E M
EM
Menon
G I
GI
Momono
N
N
Oda
M
M
Dewhurst
C D
CD
Baines
C
C