1. μSR studies of the flux vortex phases in a BEDT-TTF superconductor
- Author
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Christof M. Aegerter, Feodor Y. Ogrin, F.L. Pratt, Hugo Keller, S. Endo, S. H. Lloyd, C. Ager, Takahiko Sasaki, William Hayes, Naoki Toyota, E. M. Forgan, S. J. Blundell, and Stephen Lee
- Subjects
Superconductivity ,Flux pinning ,Condensed matter physics ,Chemistry ,Mechanical Engineering ,Metals and Alloys ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials ,Vortex ,Mechanics of Materials ,Lattice (order) ,Pairing ,Magnetic flux quantum ,Condensed Matter::Superconductivity ,Materials Chemistry ,Organic superconductor ,Penetration depth - Abstract
mu SR has been used to probe the structure and stability of the flux vortex array in the organic superconductor kappa-(BEDT-TTF)(2)Cu(SCN)(2), At temperatures below 5 K and fields below 5 mT the internal field distribution is found to closely match that expected for a three dimensional (3D) Abrikosov flux line lattice (FLL). Careful studies in this 3D-FLL regime have enabled an improved measurement of the temperature dependence of the superconducting penetration depth to be made. A linear term is found in the temperature dependence of the penetration depth, suggesting the presence of line nodes in the gap parameter and d-wave pairing.
- Published
- 2001