Superconductivity of β-type salts under uniaxial compression

Hiroshi Ito, Tetsuo Ishihara, Masafumi Niwa, Takeo Suzuki, Seiichiro Onari, Yukio Tanaka, Jun Ichi Yamada, Hideki Yamochi, Gunzi Saito

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

We studied the superconducting transition temperature T C of β-(BEDT-TTF) 2I 3 in the high-T C phase under uniaxial strain. By embedding the crystal into epoxy resin, 8 K superconducting phase is stabilized. By applying uniaxial compression, further T C increase taking a maximum at a piston pressure of 3-4 kbar is observed for both directions parallel and perpendicular to the donor stack. The behavior is understood as a competition between the electron correlation (U dimer/W) and spin frustration (t'/t) in terms of the spin-fluctuation mediated superconductivity on the dimerized triangular lattice Hubbard model.

Original languageEnglish
JournalPhysica B: Condensed Matter
Volume405
Issue number11 SUPPL.
DOIs
Publication statusPublished - Jun 1 2010
Externally publishedYes

Fingerprint

Epoxy Resins
Spin fluctuations
Electron correlations
Hubbard model
Superconductivity
Epoxy resins
Pistons
Dimers
Superconducting transition temperature
superconductivity
Salts
salts
Crystals
axial strain
epoxy resins
frustration
pistons
embedding
transition temperature
dimers

Keywords

  • β-type BEDT-TTF salt
  • Dimerization
  • Spin frustration
  • Superconductivity
  • Uniaxial strain

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Ito, H., Ishihara, T., Niwa, M., Suzuki, T., Onari, S., Tanaka, Y., ... Saito, G. (2010). Superconductivity of β-type salts under uniaxial compression. Physica B: Condensed Matter, 405(11 SUPPL.). https://doi.org/10.1016/j.physb.2009.12.073

Superconductivity of β-type salts under uniaxial compression. / Ito, Hiroshi; Ishihara, Tetsuo; Niwa, Masafumi; Suzuki, Takeo; Onari, Seiichiro; Tanaka, Yukio; Yamada, Jun Ichi; Yamochi, Hideki; Saito, Gunzi.

In: Physica B: Condensed Matter, Vol. 405, No. 11 SUPPL., 01.06.2010.

Research output: Contribution to journalArticle

Ito, H, Ishihara, T, Niwa, M, Suzuki, T, Onari, S, Tanaka, Y, Yamada, JI, Yamochi, H & Saito, G 2010, 'Superconductivity of β-type salts under uniaxial compression', Physica B: Condensed Matter, vol. 405, no. 11 SUPPL.. https://doi.org/10.1016/j.physb.2009.12.073
Ito H, Ishihara T, Niwa M, Suzuki T, Onari S, Tanaka Y et al. Superconductivity of β-type salts under uniaxial compression. Physica B: Condensed Matter. 2010 Jun 1;405(11 SUPPL.). https://doi.org/10.1016/j.physb.2009.12.073
Ito, Hiroshi ; Ishihara, Tetsuo ; Niwa, Masafumi ; Suzuki, Takeo ; Onari, Seiichiro ; Tanaka, Yukio ; Yamada, Jun Ichi ; Yamochi, Hideki ; Saito, Gunzi. / Superconductivity of β-type salts under uniaxial compression. In: Physica B: Condensed Matter. 2010 ; Vol. 405, No. 11 SUPPL.
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AU - Yamada, Jun Ichi

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