Bulk superconducting specific-heat anomaly in. beta. -di(bis(ethylenedithio) tetrathiafulvalene) diiodoaurate (. beta. -(ET)/sub 2/AuI/sub 2/)
Journal Article
·
· Phys. Rev. B: Condens. Matter; (United States)
In order to determine how universal the lack of a specific-heat anomaly at T/sub c/ is in the ..beta..-(ET)/sub 2/X/sub 3/ (..beta..-(C/sub 10/S/sub 8/H/sub 8/)/sub 2/ X/sub 3/, where X/sub 3/ is the linear anion) ambient-pressure organic superconductors (no anomaly has been found in ..beta..-(ET)/sub 2/I/sub 3/), we have measured the low-temperature specific heat of ..beta..-(ET)/sub 2/AuI/sub 2/, with T/sub c/ = 5/sup 0/K. Using a high-precision, low-adendum specific-heat platform we have found a distinct, although somewhat broadened, anomaly at T/sub c/ in ..beta..-(ET)/sub 2/AuI/sub 2/ indicative of bulk superconductivity. Also, C/T (T..-->..0) extrapolates, within the accuracy of our measurements, to zero, indicative of a fully opened gap in the electronic energy levels.
- Research Organization:
- University of Florida, Gainesville, Florida 32611
- OSTI ID:
- 5162472
- Journal Information:
- Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 34:9; ISSN PRBMD
- Country of Publication:
- United States
- Language:
- English
Similar Records
Importance of intermolecular hydrogen. hydrogen and hydrogen. anion contacts for the lattice softness, the electron-phonon coupling, and the superconducting transition temperatures, T/sub c/, of organic conducting salts. beta. -(ET)/sub 2/X (X/sup -/ = IBr/sub 2//sup -/, AuI/sub 2//sup -/, I/sub 3//sup -/). [ET = bis(ethylenedithio)tetrathiafulvalene]
Specific heat of the ambient-pressure organic superconductor. beta. -di(bis(ethylenedithio)tetrathiafulvalene) triiodide (. beta. -(BEDT-TTF)/sub 2/I/sub 3/)
Neutron diffraction evidence for unusual cohesive H-bonding interactions in. beta. -(BEDT-TTF)/sub 2/X organic superconductors. [. beta. -bis(ethylenedithio)tetrathia fulvalene X; X = AuI/sub 2/ or I/sub 3/]
Journal Article
·
Tue Jan 06 23:00:00 EST 1987
· J. Am. Chem. Soc.; (United States)
·
OSTI ID:6874500
Specific heat of the ambient-pressure organic superconductor. beta. -di(bis(ethylenedithio)tetrathiafulvalene) triiodide (. beta. -(BEDT-TTF)/sub 2/I/sub 3/)
Journal Article
·
Fri Jan 31 23:00:00 EST 1986
· Phys. Rev. B: Condens. Matter; (United States)
·
OSTI ID:6438955
Neutron diffraction evidence for unusual cohesive H-bonding interactions in. beta. -(BEDT-TTF)/sub 2/X organic superconductors. [. beta. -bis(ethylenedithio)tetrathia fulvalene X; X = AuI/sub 2/ or I/sub 3/]
Journal Article
·
Wed Jun 25 00:00:00 EDT 1986
· J. Am. Chem. Soc.; (United States)
·
OSTI ID:5534174
Related Subjects
36 MATERIALS SCIENCE
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AURATES
DATA
ELECTRONIC STRUCTURE
ENERGY-LEVEL DENSITY
EXPERIMENTAL DATA
GOLD COMPOUNDS
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SPECIFIC HEAT
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
TTF
ULTRALOW TEMPERATURE
360603* -- Materials-- Properties
656102 -- Solid State Physics-- Superconductivity-- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AURATES
DATA
ELECTRONIC STRUCTURE
ENERGY-LEVEL DENSITY
EXPERIMENTAL DATA
GOLD COMPOUNDS
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
SPECIFIC HEAT
SUPERCONDUCTORS
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
TRANSITION TEMPERATURE
TTF
ULTRALOW TEMPERATURE