Crystal structure and electronic band structure of the organic superconductor (formula presented) under uniaxial strain

Ryusuke Kondo, Seiichi Kagoshima, Mitsuhiko Maesato

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

In order to investigate the relationship between the crystal structure and electronic properties, crystal structure analysis of the organic superconductor (formula presented) where BEDT-TTF is the abbreviation of bis(ethylenedithio)tetrathiafulvalene, was performed under uniaxial compressive strain along each crystal axis. It was found that (i) almost ideal uniaxial strain was realized, that is, the unit cell was compressed only along the direction parallel to the external force; (ii) the calculated Fermi surface in the two-dimensional conducting layer was reduced along the (formula presented) axis and expanded along the (formula presented) axis under (formula presented)- and c-axial strains, but vice versa under a-axial strain; and (iii) changes in the density of states at the Fermi level (formula presented) calculated from the obtained structures were qualitatively consistent with the observed change of the superconducting transition temperature.

Original languageEnglish
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume67
Issue number13
DOIs
Publication statusPublished - Apr 22 2003
Externally publishedYes

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organic superconductors
axial strain
Band structure
Superconducting materials
Crystal structure
crystal structure
electronics
Fermi surface
abbreviations
Fermi level
Electronic properties
Superconducting transition temperature
Fermi surfaces
Crystals
transition temperature
conduction
cells
crystals
BEDT-TTF

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Crystal structure and electronic band structure of the organic superconductor (formula presented) under uniaxial strain. / Kondo, Ryusuke; Kagoshima, Seiichi; Maesato, Mitsuhiko.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 67, No. 13, 22.04.2003.

Research output: Contribution to journalArticle

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