Systematic investigation of electronic structure in BEDT-TTF based organic superconductors with Tc above 10 K; [kappa]-(BEDT-TTF)[sub 2]X (X = Cu(NCS)[sub 2], Cu[N(CN)[sub 2]]Br, and Cu(CN)[N(CN)[sub 2]])

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

OSTI ID:7165410

Nakamura, Toshikazu; Nobutoki, Tomoko; Miyamoto, Masao; Tsubokura, Yuichi; Tsuchiya, Ryota; Takahashi, Toshihiro ^[1]; Kanoda, Kazushi ^[2]; Saito, Gunzi ^[3]

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1. Gakushuin Univ., Tokyo (Japan)
2. Inst. for Molecular Science, Okazaki (Japan)
3. Kyoto Univ. (Japan)

The electronic structure of the title superconductors has been investigated by electrical resistivity, complex susceptibility, and electron paramagnetic resonance (EPR) measurements. The superconducting properties (pressure dependence of Tc, magnetic penetration depth, upper critical field, and so on) of these three salts are similar to each other, while transport properties in the normal state have shown a large variety in the temperature dependence. In order to clarify the electronic structure in the normal state, the EPR parameters, the spin susceptibility ([Chi][sub spin]), and the linewidth ([Delta]H[sub pp]), are compared. An anomalous temperature dependence of the g-value has been observed below 150 K in the Cu(NCS)[sub 2] and Cu(CN)[N(CN)[sub 2]] salts. 18 refs., 3 figs., 1 tab.

• OSTI ID: 7165410
• Report Number(s): CONF-930710-; CODEN: JOUSEH; TRN: 94-016461
• Journal Information: Journal of Superconductivity; (United States), Vol. 7:3; Conference: Physics and chemistry of molecular and oxide superconductors conference, Eugene, OR (United States), 27-31 Jul 1993; ISSN 0896-1107
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ORGANIC SUPERCONDUCTORS
CRYSTAL LATTICES
ELECTRON SPIN RESONANCE
ELECTRONIC STRUCTURE
MAGNETIC SUSCEPTIBILITY
TRANSITION TEMPERATURE
TEMPERATURE DEPENDENCE
BEDT-TTF
BROMIDES
COPPER COMPOUNDS
SALTS
BROMINE COMPOUNDS
CRYSTAL STRUCTURE
HALIDES
HALOGEN COMPOUNDS
HETEROCYCLIC COMPOUNDS
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHYSICAL PROPERTIES
RESONANCE
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
360607* - Other Materials- Superconducting Properties- (1992-)
360606 - Other Materials- Physical Properties- (1992-)
360602 - Other Materials- Structure & Phase Studies