Quantized Hall effect in the organic superconductor (TMTSF) sub 2 ReO sub 4 (TMTSF=tetramethyltetraselenafulvalinium)
- Laboratoire de Physiques des Solides, Universite Paris, 91405 Orsay, France (FR)
We report evidence for a well-defined quantum Hall effect in the field-induced spin-density-wave states of the organic superconductor (TMTSF){sub 2}ReO{sub 4}. Hall resistance plateaus at {ital h}/2{ital e}{sup 2} and {ital h}/4{ital e}{sup 2} were clearly identified and correspond to the {ital n}=1 and {ital n}=2 states of the standard quantized nesting model. Magnetic breakdown is proposed as a tentative interpretation for the change in behavior of the Hall voltage occurring around 16 T and the existence of fast magnetoresistance oscillations. It is found that even in the semiconducting {ital n}=0 phase the absolute value of {rho}{sub {ital x}{ital y}} remains of the order of {ital h}/{ital e}{sup 2}. A tentative explanation for this effect in terms of incipient field-induced localization is proposed.
- OSTI ID:
- 5557996
- Journal Information:
- Physical Review, B: Condensed Matter; (USA), Journal Name: Physical Review, B: Condensed Matter; (USA) Vol. 43:13; ISSN 0163-1829; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
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Quantum Hall effect in a bulk crystal
Related Subjects
360603* -- Materials-- Properties
CHALCOGENIDES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HALL EFFECT
HETEROCYCLIC COMPOUNDS
MAGNETORESISTANCE
ORGANIC COMPOUNDS
ORGANIC SUPERCONDUCTORS
OXIDES
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
QUANTIZATION
REFRACTORY METAL COMPOUNDS
RHENIUM COMPOUNDS
RHENIUM OXIDES
SELENIUM COMPOUNDS
SUPERCONDUCTORS
TMTSF
TRANSITION ELEMENT COMPOUNDS