Bulk superconducting specific-heat anomaly in. beta. -di(bis(ethylenedithio) tetrathiafulvalene) diiodoaurate (. beta. -(ET)/sub 2/AuI/sub 2/)

Journal Article · Sat Nov 01 00:00:00 EST 1986 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.34.6509· OSTI ID:5162472

Stewart, G R; Williams, J M; Wang, H H; Hall, L N; Perozzo, M T; Carlson, K D

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), Vol. 34:9
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AURATES
SPECIFIC HEAT
GOLD COMPOUNDS
ORGANIC SULFUR COMPOUNDS
TTF
ELECTRONIC STRUCTURE
ENERGY-LEVEL DENSITY
EXPERIMENTAL DATA
SUPERCONDUCTORS
TRANSITION TEMPERATURE
ULTRALOW TEMPERATURE
DATA
HETEROCYCLIC COMPOUNDS
INFORMATION
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
THERMODYNAMIC PROPERTIES
TRANSITION ELEMENT COMPOUNDS
360603* - Materials- Properties
656102 - Solid State Physics- Superconductivity- Acoustic
Electronic
Magnetic
Optical
& Thermal Phenomena- (-1987)