TY  - JOUR
SN  - 0031-9007
UR  - http://dx.doi.org/10.1103/PhysRevLett.97.127001
PB  - AMERICAN PHYSICAL SOC
ID  - discovery142881
N2  - Using small-angle neutron scattering, we have studied the flux-line lattice (FLL) in the superclean, high-kappa superconductor CeCoIn5. The FLL undergoes a first-order symmetry and reorientation transition at similar to 0.55 T at 50 mK. In addition, the FLL form factor in this material is found to be independent of the applied magnetic field, in striking contrast to the exponential decrease usually observed in superconductors. This result is consistent with a strongly field-dependent coherence length, proportional to the vortex separation.
KW  - ANGLE NEUTRON-SCATTERING
KW  -  FLUX-LINE-LATTICE
KW  -  MIXED-STATE
KW  -  II SUPERCONDUCTOR
KW  -  VORTEX LATTICE
KW  -  TRANSITION
KW  -  PHASE
KW  -  CORE
KW  -  UPT3
A1  - DeBeer-Schmitt, L
A1  - Dewhurst, CD
A1  - Hoogenboom, BW
A1  - Petrovic, C
A1  - Eskildsen, MR
JF  - PHYS REV LETT
VL  - 97
AV  - public
Y1  - 2006/09/22/
TI  - Field dependent coherence length in the superclean, high-kappa superconductor CeCoIn5
N1  - © 2006 The American Physical Society
IS  - 12
ER  -