Crystal and band structures of organic superconductor under the uniaxial strain

Ryusuke Kondo, Seiichi Kagoshima, Mitsuhiko Maesato

Research output: Contribution to journalConference article

Abstract

In order to investigate the relationships between electronic properties and crystal structures, a structure analysis of the organic superconductor, α-(BEDT-TTF)2NH4Hg(SCN)4, was performed using the observed 700-1300 Bragg reflections under the uniaxial strain along the each crystal axis of 1.0-2.0 kbar piston pressure. It was found that the calculated Fermi surfaces in the two-dimensional conducting layer are shrunk along the c-axis and swelled along the a-axis under the b*- and c-axial strain, while shrunk along the a-axis and swelled along the c-axis under the a-axial strain. The changes in the density-of-states at the Fermi level calculated from the obtained structures are qualitatively consistent with the observed change of the TSC.

Original languageEnglish
Pages (from-to)601-602
Number of pages2
JournalPhysica C: Superconductivity and its applications
Volume388-389
DOIs
Publication statusPublished - May 1 2003
Externally publishedYes
Eventproceedings of the 23rd international conference on low temper - Hiroshima, Japan
Duration: Aug 20 2002Aug 27 2002

Keywords

  • Crystal structure
  • Organic superconductor
  • Uniaxial compression
  • X-ray diffraction

ASJC Scopus subject areas

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

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