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 |
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
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Cite this
Ito, H., Ishihara, T., Tanaka, H., Kuroda, S. I., Suzuki, T., Onari, S., Tanaka, Y., Yamada, J. I., & Kikuchi, K. (2008). Roles of spin fluctuation and frustration in the superconductivity of β-(BDA-TTP)2X (X=SbF6, AsF6) under uniaxial compression. Physical Review B - Condensed Matter and Materials Physics, 78(17), [172506]. https://doi.org/10.1103/PhysRevB.78.172506