Fermi surface studies of α-phase organic metals and superconductors

J. Wosnitza, G. Goll, D. Beckmann, E. Steep, N. D. Kushch, T. Sasaki, T. Fukase

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

We present first de Haas-van Alphen (dHvA) experiments on the quasi-two-dimensional (quasi-2D) organic metals α-(ET)2MHg(SeCN)4 (M = Tl or K) and compare the results with dHvA data of the isostructural organic superconductor α-(ET)2NH4Hg(SCN)4. The angular dependences of the single found dHvA frequency and the field-independent effective cyclotron mass, mc, perfectly follow the 2D 1/cos Θ behavior. From the observed spin-splitting zeros we unambiguously could extract the values of gμb. Comparison with mc strongly suggests a reduced electron-phonon coupling constant in the non-superconducting salts.

Original languageEnglish
Pages (from-to)1691-1696
Number of pages6
JournalJournal of Low Temperature Physics
Volume105
Issue number5-6
DOIs
Publication statusPublished - 1996

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Materials Science(all)
  • Condensed Matter Physics

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