Characterization of transition metal-containing oxide systems by Mössbauer Spectroscopy

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4 Citations (Scopus)

Abstract

High-temperature (high-Tc) superconductors and colossal magnetoresistant (CMR) materials belong to the most promising materials of the past 2-3 decades for technical applications. Most of them are oxides and the crucial element which determines their useful physical properties is often a transition metal (Cu, Co, Fe, Mn). 57Fe Mössbauer Spectroscopy can be used to characterize the electronic and structural properties of transition metal-containing oxides by providing information on the local electronic structure of the lattice site where the Mössbauer probe is accommodated. By reviewing several Mössbauer studies, it is demonstrated how the layered (2D) electronic structure of high-Tc superconductors can be deduced from the analysis of the Mössbauer isomer shift and quadrupole splitting. We also show how the Mössbauer isomer shift indicates metallicity of the ferromagnetic phase in the CMR material La xSr1-xCoO3-.

Original languageEnglish
Pages (from-to)197-205
Number of pages9
JournalCeramics - Silikaty
Volume48
Issue number4
Publication statusPublished - Dec 1 2004

Keywords

  • Colossal magnetoresistance
  • High temperature superconductors
  • Isomer shift
  • Metallicity
  • Mössbauer spectroscopy

ASJC Scopus subject areas

  • Analytical Chemistry
  • Ceramics and Composites
  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Materials Chemistry

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