Low-lying vibrational states in superconducting κ-(BEDT-TTF)2Cu(NCS)2: Inelastic neutron scattering

Naoki Toyota, T. Shimazu, T. Sasaki, K. Shibata, T. Kajitani, M. Lang, S. Ikeda

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

We report here two kinds of time-of-flight inelastic-neutron-scattering measurements using LAM-D and LAM-40 spectrometers on an aggregate of randomly oriented single crystals and a piece of single crystal, respectively, of hydrogenated κ-(h8-BEDT-TTF)2 Cu(NCS)2. The generalized partial density-of-states spectrum shows an anomalous enhancement in low-lying energy regime below several meV at low temperatures below Tc. It suggests that low-lying vibrational modes involving protons at terminal ethylenes appear in the superconducting phase.

Original languageEnglish
Pages (from-to)2009-2010
Number of pages2
JournalSynthetic Metals
Volume86
Issue number1-3
Publication statusPublished - 1997 Feb 28

Keywords

  • Neutron scattering and diffraction
  • Organic superconductors
  • Superconducting phase transitions

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

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