Neutron-diffraction evidence for ordering in the high-T/sub c/ phase of. beta. -di(bis(ethylenedithio) tetrathiafulvalene)triiodide (. beta. -(ET)/sub 2/I/sub 3/)

Journal Article · Sun Jun 01 04:00:00 EDT 1986 · Phys. Rev. B: Condens. Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.33.7823· OSTI ID:5726851

Schultz, A J; Beno, M A; Wang, H H; Williams, J M

Satellite reflections, which are present in the neutron-diffraction pattern of ..beta..-di(bis(ethylenedithio)tetrathiafulvalene)triiodide (..beta..-(ET)/sub 2/I/sub 3/) at ambient pressure below 200 K, are absent above a critical pressure of 0.5 kbar applied at room temperature and followed by cooling. The satellite reflections remain absent if the pressure is released while the temperature is maintained at 20 K. The absence of satellite reflections, and therefore the absence of a previously discovered modulated structure, indicates a higher degree of ordering in the high-pressure--high-T/sub c/ state in comparison to the ambient-pressure--low-T/sub c/ state of ..beta..-(ET)/sub 2/I/sub 3/. .AE

• Research Organization: Chemistry and Materials Science and Technology Divisions, Argonne National Laboratory, Argonne, Illinois 60439
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 5726851
• Journal Information: Phys. Rev. B: Condens. Matter; (United States), Journal Name: Phys. Rev. B: Condens. Matter; (United States) Vol. 33:11; ISSN PRBMD
• Country of Publication: United States
• Language: English

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
BEDT-TTF
COHERENT SCATTERING
CRYSTALS
DIFFRACTION
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
HETEROCYCLIC COMPOUNDS
NEUTRON DIFFRACTION
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PHYSICAL PROPERTIES
PRESSURE EFFECTS
SCATTERING
SUPERCONDUCTIVITY
THERMODYNAMIC PROPERTIES
TRANSITION TEMPERATURE