Jan, 2007
Ultrahigh-pressure effects in metallo-organics
PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS
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- Volume
- 244
- Number
- 1
- First page
- 418
- Last page
- 423
- Language
- English
- Publishing type
- Research paper (scientific journal)
- DOI
- 10.1002/pssb.200672530
- Publisher
- WILEY-V C H VERLAG GMBH
The results are reported of the pressure (P) dependence of the electrical resistance (R), the thermoelectric power (Seebeck effect) (S), and compressibility as well as the time dependence of R at fixed P up to 20 GPa for four metallo-organics based on the BEDT-TTF (bisethylenedithiolo-tetrathiofulvalene) group, theta-(BEDT-TTF)(2)CsZn(SCN)(4), alpha-(BEDT-TTF)(2)I-3, beta'-(BEDT-TTF)(2)PF6, and (BEDT-TTF)-TCNQ. X-ray powder and single-crystal diffraction studies were also made on theta-(BEDT-TTF)(2)CsZn(SCN)(4) at high pressures up to P similar to 10 GPa. The R values of all the crystals decreased with pressure up to P similar to 3-5 GPa (low-pressure regime), and then the sign of dR/dP inverted (high-pressure regime). From the investigation of the mechanical and structural properties, these materials were found to have a large compressibility in the low-pressure regime, and a small one in the high-pressure region. In theta-(BEDT-TTF)(2)CsZn(SCN)(4) we observed pressure-induced reversible degradation (amorphization) in structure without a solid-phase reaction. (C) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
- Link information
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- DOI
- https://doi.org/10.1002/pssb.200672530
- Web of Science
- https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000243693600074&DestApp=WOS_CPL
- URL
- http://www.scopus.com/inward/record.url?eid=2-s2.0-33847064675&partnerID=MN8TOARS
- URL
- http://orcid.org/0000-0003-1022-430X
- ID information
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- DOI : 10.1002/pssb.200672530
- ISSN : 0370-1972
- ORCID - Put Code : 36639588
- SCOPUS ID : 33847064675
- Web of Science ID : WOS:000243693600074