Properties of organic superconductors. Final report, September 1982-September 1983
The major results were: 1. Discovery of a new class of organic superconductors based on the (BEDT-TTF) molecule. This discovery has proven to be very important since recent chemical modification of the (BEDT-TTF) compound has led to a superconducting transition temperature of 8K, quite high for an organic solid. This offers the possibility that superconductivity can be found at temperatures greater than inorganic materials. The characterization of the (BEDT-TTF)2X superconductors included transport, magnetic, and structural properties and these are discussed. 2. Measurement of the far-IR properties of (TMTSF)/sub 2/ C1O/sub 4/. These results proved that a large superconductivity gap does not exist in (TMTSF)/sub 2/ C1O/sub 4/, contrary to previous speculations and erroneous interpretation of data by other workers. This rules out the possibility of superconducting fluctuations in the (TMTSF)2X class of organic superconductors. 3. Observation of now features of the magnetic-field-induced transition in (TMTSF)/sub 2/ C1O/sub 4/. The field-induced-transition (FIT) is quite anomalous and appears to be unique in solid-state physics. The Hall effect and the magnetoresistance of (TMTSF)/sub 2/ C1O/sub 4/ was measured as a function of magnetic field up to 20T.
- Research Organization:
- IBM Research Lab., San Jose, CA (USA)
- OSTI ID:
- 5850545
- Report Number(s):
- AD-A-163573/9/XAB
- Country of Publication:
- United States
- Language:
- English
Similar Records
Interlayer magnetoresistance peak in {beta}"-(BEDT-TTF){sub 2}SF{sub 5}CH{sub 2}CF{sub 2}SO{sub 3}.
Interlayer magnetoresistance peak in {beta}{sup {double_prime}}-(BEDT{endash}TTF){sub 2}SF{sub 5}CH{sub 2}CF{sub 2}SO{sub 3}
Related Subjects
360603* -- Materials-- Properties
BEDT-TTF
CHEMICAL PROPERTIES
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HALL EFFECT
HETEROCYCLIC COMPOUNDS
MAGNETIC FIELDS
MAGNETIC PROPERTIES
MAGNETORESISTANCE
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHYSICAL PROPERTIES
PHYSICS
SELENIUM COMPOUNDS
SOLID STATE PHYSICS
SUPERCONDUCTIVITY
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TMTSF
TRANSITION TEMPERATURE