Resistive superconducting transition of [kappa]-type BEDT-TTF organic superconductors in a magnetic field

Conference · Wed Jun 01 04:00:00 EDT 1994 · Journal of Superconductivity; (United States)

OSTI ID:7243328

Ito, Hiroshi; Ishiguro, Takehiko; Komatsu, Tokutaro; Matsukawa, Nozomu; Saito, Gunzi ^[1]; Anzai, Hiroyuki ^[2]

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1. Kyoto Univ. (Japan)
2. Himeji Inst. of Technology, Hyogo (Japan)

The superconducting transition of the organic compounds [kappa]-(BEDT-TTF)[sub 2]X is studied by resistive measurement in a magnetic field up to 10 T applied normal to the conducting plane. For the salts with X = Cu[N(CN)[sub 2]]Br and X = CuCN[N(CN)[sub 2]] the transition shows fan-shaped broadening caused by superconductivity fluctuation. For the X = Cu(NCS)[sub 2] salt the resistivity shows a peak in the transition region in a magnetic field below 4 T. This phenomenon is suppressed in defect-reduced samples for intralayer conduction. We discuss this peak in relation to the thermal fluctuation on the Josephson junction structures in this salt. 16 refs., 3 figs.

• OSTI ID: 7243328
• Report Number(s): CONF-930710--
• Conference Information: Journal Name: Journal of Superconductivity; (United States) Journal Volume: 7:3
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360606 -- Other Materials-- Physical Properties-- (1992-)
360607* -- Other Materials-- Superconducting Properties-- (1992-)
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
BEDT-TTF
BROMIDES
BROMINE COMPOUNDS
COPPER COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
JOSEPHSON JUNCTIONS
JUNCTIONS
MAGNETIC FIELDS
MATHEMATICAL MODELS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
ORGANIC SUPERCONDUCTORS
PHYSICAL PROPERTIES
SALTS
SUPERCONDUCTING JUNCTIONS
SUPERCONDUCTORS
TRANSITION ELEMENT COMPOUNDS