Lattice vibrations of the superconducting oxide spinels (Li,Mg)1+xTi2-xO4

M. A. Green, M. Dalton, K. Prassides, P. Day, D. A. Neumann

研究成果: Article査読

10 被引用数 (Scopus)

抄録

The lattice vibrational spectra of the spinel phases, Li1+tTi2-xO4 (x = O, 0.33) and Li1-yMgyTi2O4 (y = 0.1, 0.3) (space group F d3̄m), have been measured as a function of temperature and composition by neutron inelastic scattering. Calculations of phonon densities of states (PDOSs) using interatomic potentials were performed and compared with the experimental data. Extensive phonon softening and hardening are observed on Li and Mg substitution throughout the energy range 10-100 meV and are discussed in terms of electron-phonon coupling and its relevance to superconductivity. The observed PDOSs show no change on cooling through the superconducting transition temperature, Tc.

本文言語English
ページ(範囲)10855-10865
ページ数11
ジャーナルJournal of Physics Condensed Matter
9
49
DOI
出版ステータスPublished - 1997 12月 8

ASJC Scopus subject areas

  • 材料科学(全般)
  • 凝縮系物理学

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