Comparison of the Fermi surfaces of isostructural organic conducting salts (BEDT-TTF)2MHg(SCN)4 and (BEDT-TSF)2MHg(SCN)4 (M = NH4 and K)

D. K. Seo, M. H. Whangbo, B. Fravel, L. K. Montgomery

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Abstract

The electronic structures of the (BEDT-TTF)2MHg(SCN)4 and (BEDT-TSF)2MHg(SCN)4 (M = K, NH4) salts were calculated using the extended Hückel tight binding method. These salts have a Fermi surface (FS) consisting of an elliptical pocket centered at Z and a pair of lines straddling along X-M. The features of these two-dimensional FS pockets and one-dimensional FS pieces were characterized. The differences in the FS shapes of the BEDT-TTF and BEDT-TSF salts and their implications concerning the magnetoresistance properties were discussed.

Original languageEnglish
Pages (from-to)191-194
Number of pages4
JournalSolid State Communications
Volume100
Issue number3
DOIs
Publication statusPublished - Oct 1996

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ASJC Scopus subject areas

  • Chemistry(all)
  • Condensed Matter Physics
  • Materials Chemistry

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