Abstract
β -type BDA-TTP [BDA-TTP=2,5 -bis(1,3-dithian-2-ylidene)-1,3,4,6- tetrathiapentalene] salts possess high transition temperatures TC reaching 7 K among organic superconductors. TC of β- (BDA-TTP) 2 X (X= SbF6, AsF6) is studied by resistive measurements under uniaxial compression. TC once increases and takes a maximum under compression parallel to the donor stack while it decreases under compression perpendicular to the donor stack. These results are in agreement with the half-filled Hubbard model on the triangular lattice in which the compression controls the spin fluctuation and frustration in the weak pressure region.
| Original language | English |
|---|---|
| Article number | 172506 |
| Journal | Physical Review B - Condensed Matter and Materials Physics |
| Volume | 78 |
| Issue number | 17 |
| DOIs | |
| Publication status | Published - Nov 14 2008 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
- Electronic, Optical and Magnetic Materials
Cite this
Roles of spin fluctuation and frustration in the superconductivity of β-(BDA-TTP)2X (X=SbF6, AsF6) under uniaxial compression. / Ito, Hiroshi; Ishihara, Tetsuo; Tanaka, Hisaaki; Kuroda, Shin Ichi; Suzuki, Takeo; Onari, Seiichiro; Tanaka, Yukio; Yamada, Jun Ichi; Kikuchi, Koichi.
In: Physical Review B - Condensed Matter and Materials Physics, Vol. 78, No. 17, 172506, 14.11.2008.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Roles of spin fluctuation and frustration in the superconductivity of β-(BDA-TTP)2X (X=SbF6, AsF6) under uniaxial compression
AU - Ito, Hiroshi
AU - Ishihara, Tetsuo
AU - Tanaka, Hisaaki
AU - Kuroda, Shin Ichi
AU - Suzuki, Takeo
AU - Onari, Seiichiro
AU - Tanaka, Yukio
AU - Yamada, Jun Ichi
AU - Kikuchi, Koichi
PY - 2008/11/14
Y1 - 2008/11/14
N2 - β -type BDA-TTP [BDA-TTP=2,5 -bis(1,3-dithian-2-ylidene)-1,3,4,6- tetrathiapentalene] salts possess high transition temperatures TC reaching 7 K among organic superconductors. TC of β- (BDA-TTP) 2 X (X= SbF6, AsF6) is studied by resistive measurements under uniaxial compression. TC once increases and takes a maximum under compression parallel to the donor stack while it decreases under compression perpendicular to the donor stack. These results are in agreement with the half-filled Hubbard model on the triangular lattice in which the compression controls the spin fluctuation and frustration in the weak pressure region.
AB - β -type BDA-TTP [BDA-TTP=2,5 -bis(1,3-dithian-2-ylidene)-1,3,4,6- tetrathiapentalene] salts possess high transition temperatures TC reaching 7 K among organic superconductors. TC of β- (BDA-TTP) 2 X (X= SbF6, AsF6) is studied by resistive measurements under uniaxial compression. TC once increases and takes a maximum under compression parallel to the donor stack while it decreases under compression perpendicular to the donor stack. These results are in agreement with the half-filled Hubbard model on the triangular lattice in which the compression controls the spin fluctuation and frustration in the weak pressure region.
UR - http://www.scopus.com/inward/record.url?scp=57349194556&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=57349194556&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.78.172506
DO - 10.1103/PhysRevB.78.172506
M3 - Article
AN - SCOPUS:57349194556
VL - 78
JO - Physical Review B-Condensed Matter
JF - Physical Review B-Condensed Matter
SN - 1098-0121
IS - 17
M1 - 172506
ER -