Crystal and band structures of organic superconductor under the uniaxial strain

Ryusuke Kondo, Seiichi Kagoshima, Mitsuhiko Maesato

Research output: Contribution to journalArticle

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 2003
Externally publishedYes

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organic superconductors
axial strain
Band structure
Superconducting materials
Crystal structure
crystal structure
Fermi surface
Fermi level
Electronic properties
Pistons
Crystals
pistons
Fermi surfaces
conduction
electronics
crystals

Keywords

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

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Crystal and band structures of organic superconductor under the uniaxial strain. / Kondo, Ryusuke; Kagoshima, Seiichi; Maesato, Mitsuhiko.

In: Physica C: Superconductivity and its Applications, Vol. 388-389, 05.2003, p. 601-602.

Research output: Contribution to journalArticle

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