Enhanced charge localization in the organic alloys [(TMTSF)[sub 1[minus][ital x]](TMTTF)[sub [ital x]]][sub 2]ReO[sub 4]

Journal Article · Thu Sep 01 00:00:00 EDT 1994 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.50.7136· OSTI ID:6735647

Ilakovac, V; Ravy, S; Pouget, J P; Lenoir, C; Boubekeur, K; Batail, P ^[1]; Babic, S D; Biskup, N; Korin-Hamzic, B; Tomic, S ^[2]; Bourbonnais, C ^[3]

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1. Laboratoire de Physique des Solides, Batiment 510, Universite Paris XI, 91405 Orsay CEDEX (France)
2. Institute of Physics of the University, Bijenicka 46, P.O. Box 304, 41000 Zagreb (Croatia)
3. Centre de Recherches en Physique des Solides, Universite de Sherbrooke, Quebec, J1K2R1 (Canada)

Structural, electrical, and magnetic studies of [(TMTSF)[sub 1[minus][ital x]](TMTTF)[sub [ital x]]][sub 2]ReO[sub 4] alloys are reported. They exhibit around [ital x][similar to]0.5 an enhanced charge localization and a strong decrease of the (1/2,1/2,1/2) anion-ordering (AO) transition temperature. The localization enhancement is attributed to a 4[ital k][sub [ital F]] order of charge on the sites due to the alternate order of TMTSF and TMTTF molecules. This heteropolar charge distribution is suggested to weaken the 2[ital k][sub [ital F]] bond response and thus to depress the AO transition. These properties contrast with those exhibited by the hybrid salt (TMDTDSF)[sub 2]ReO[sub 4].

• OSTI ID: 6735647
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 50:10; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360207* -- Ceramics
Cermets
& Refractories-- Superconducting Properties-- (1992-)
CHALCOGENIDES
CHARGE DENSITY
COLLECTIVE EXCITATIONS
CRYSTAL-PHASE TRANSFORMATIONS
CRYSTALS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON SPIN RESONANCE
ENERGY-LEVEL TRANSITIONS
EXCITATION
HETEROCYCLIC COMPOUNDS
MAGNETIC RESONANCE
MONOCRYSTALS
ORGANIC COMPOUNDS
ORGANIC SUPERCONDUCTORS
OXIDES
OXYGEN COMPOUNDS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
REFRACTORY METAL COMPOUNDS
RESONANCE
RHENIUM COMPOUNDS
RHENIUM OXIDES
SELENIUM COMPOUNDS
STOICHIOMETRY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TMTSF
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE