Abstract
Interrelations are investigated between the electrical and structural properties of organic conductors, BEDT-TTF (bis(ethylenedithiolo)tetrathiafulvalene) trihalides. In α-)BEDT-TTF)2I3 evidence is obtained by X-ray diffraction for BEDT-TTF molecular dimerization at the metal-insulator transition temperature of 135 K. Another BEDT-TTF molecular dimerization is found in α-(BEDT-TTF)2IBr2, which has semiconducting properties and an activation energy that increases with decreasing temperature. These dimerizations are considered to be responsible for the changes in the electrical properties. Superconducting ß-(BEDT-TTF)2I3 is found to have a superstructure below 175 K, above which short-range fluctuations are observed up to about 200 K.
Original language | English |
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Pages (from-to) | 367-377 |
Number of pages | 11 |
Journal | Synthetic Metals |
Volume | 16 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1986 |
Externally published | Yes |
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ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Materials Chemistry
- Polymers and Plastics
Cite this
X-ray evidence for structural changes in the organic conductors, α-(BEDT-TTF)2I3, α-(BEDT-TTF)2IBr2 and ß-(BEDT-TTF)2I3. / Nogami, Yoshio; Kagoshima, S.; Sugano, T.; Saito, G.
In: Synthetic Metals, Vol. 16, No. 3, 1986, p. 367-377.Research output: Contribution to journal › Article
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TY - JOUR
T1 - X-ray evidence for structural changes in the organic conductors, α-(BEDT-TTF)2I3, α-(BEDT-TTF)2IBr2 and ß-(BEDT-TTF)2I3
AU - Nogami, Yoshio
AU - Kagoshima, S.
AU - Sugano, T.
AU - Saito, G.
PY - 1986
Y1 - 1986
N2 - Interrelations are investigated between the electrical and structural properties of organic conductors, BEDT-TTF (bis(ethylenedithiolo)tetrathiafulvalene) trihalides. In α-)BEDT-TTF)2I3 evidence is obtained by X-ray diffraction for BEDT-TTF molecular dimerization at the metal-insulator transition temperature of 135 K. Another BEDT-TTF molecular dimerization is found in α-(BEDT-TTF)2IBr2, which has semiconducting properties and an activation energy that increases with decreasing temperature. These dimerizations are considered to be responsible for the changes in the electrical properties. Superconducting ß-(BEDT-TTF)2I3 is found to have a superstructure below 175 K, above which short-range fluctuations are observed up to about 200 K.
AB - Interrelations are investigated between the electrical and structural properties of organic conductors, BEDT-TTF (bis(ethylenedithiolo)tetrathiafulvalene) trihalides. In α-)BEDT-TTF)2I3 evidence is obtained by X-ray diffraction for BEDT-TTF molecular dimerization at the metal-insulator transition temperature of 135 K. Another BEDT-TTF molecular dimerization is found in α-(BEDT-TTF)2IBr2, which has semiconducting properties and an activation energy that increases with decreasing temperature. These dimerizations are considered to be responsible for the changes in the electrical properties. Superconducting ß-(BEDT-TTF)2I3 is found to have a superstructure below 175 K, above which short-range fluctuations are observed up to about 200 K.
UR - http://www.scopus.com/inward/record.url?scp=0022904320&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0022904320&partnerID=8YFLogxK
U2 - 10.1016/0379-6779(86)90173-6
DO - 10.1016/0379-6779(86)90173-6
M3 - Article
AN - SCOPUS:0022904320
VL - 16
SP - 367
EP - 377
JO - Synthetic Metals
JF - Synthetic Metals
SN - 0379-6779
IS - 3
ER -