Muon-spin-relaxation measurements of magnetic penetration depth in organic superconductors (BEDT-TTF) sub 2 - X : X =Cu(NCS) sub 2 and Cu(N(CN) sub 2 )Br
Journal Article
·
· Physical Review Letters; (United States)
- Department of Physics, Columbia University, New York, New York 10027 (United States)
- Department of Physics, University of British Columbia, Vancouver, British Columbia, V6T 2A3 (Canada)
- Department of Physics, Virginia State University, Petersburg, Virginia 23803 (United States)
- Department of Chemistry, Kyoto University, Kyoto 606 (Japan)
- Chemistry and Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439 (United States)
The magnetic-field penetration depth {lambda} in the organic superconductors {kappa}-(BEDT-TTF){sub 2} Cu(NCS){sub 2} and {kappa}-(BEDT-TTF){sub 2} Cu(N(CN){sub 2})Br has been measured over a wide temperature region 20 mK{le}{ital T}{le}15 K via the muon-spin-relaxation technique. Linear variation of {lambda} with {ital T} at low temperatures, found in both systems, is consistent with anisotropic superconducting pairings with line nodes in the energy gap. In the latter compound, we observe flux depinning at {ital T}{similar to}5 K, well below {ital T}{sub {ital c}}=12 K.
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 7305743
- Journal Information:
- Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 68:12; ISSN PRLTA; ISSN 0031-9007
- Country of Publication:
- United States
- Language:
- English
Similar Records
Magnetic penetration depth in the organic superconductor. kappa. -(BEDT-TTF) sub 2 Cu(NCS) sub 2
Magnetic penetration depth and fluxon-line dynamics in the organic superconductor [kappa]-[BEDT-TTF][sub 2]Cu[NCS][sub 2]
Magnetically modulated microwave absorption in the organic superconductor. kappa. -(BEDT-TTF) sub 2 Cu(NCS) sub 2 (where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene)
Journal Article
·
Sun Mar 11 23:00:00 EST 1990
· Physical Review Letters; (USA)
·
OSTI ID:6904081
Magnetic penetration depth and fluxon-line dynamics in the organic superconductor [kappa]-[BEDT-TTF][sub 2]Cu[NCS][sub 2]
Journal Article
·
Sun May 01 00:00:00 EDT 1994
· Physical Review, B: Condensed Matter; (United States)
·
OSTI ID:6664534
Magnetically modulated microwave absorption in the organic superconductor. kappa. -(BEDT-TTF) sub 2 Cu(NCS) sub 2 (where BEDT-TTF is bis(ethylenedithio)tetrathiafulvalene)
Journal Article
·
Thu Jan 31 23:00:00 EST 1991
· Physical Review, B: Condensed Matter; (USA)
·
OSTI ID:5844434
Related Subjects
36 MATERIALS SCIENCE
360607* -- Other Materials-- Superconducting Properties-- (1992-)
BINDING ENERGY
ENERGY
ENERGY GAP
MAGNETIC FLUX
MUON SPIN RELAXATION
ORGANIC SUPERCONDUCTORS
PAIRING ENERGY
PENETRATION DEPTH
RELAXATION
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K
360607* -- Other Materials-- Superconducting Properties-- (1992-)
BINDING ENERGY
ENERGY
ENERGY GAP
MAGNETIC FLUX
MUON SPIN RELAXATION
ORGANIC SUPERCONDUCTORS
PAIRING ENERGY
PENETRATION DEPTH
RELAXATION
SUPERCONDUCTORS
TEMPERATURE DEPENDENCE
TEMPERATURE RANGE
TEMPERATURE RANGE 0000-0013 K