Nanoscale magnetism in the chalcogenide spinel (formula presented) Common origin of colossal magnetoresistivity

Amar Nath, Zoltán Klencsár, Erno Kuzmann, Zoltán Homonnay, Attila Vértes, Athanassios Simopoulos, Eamonn Devlin, George Kallias, Arthur P. Ramirez, Robert Joseph Cava

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Most of the models purporting to explain the intriguing observation of colossal magnetoresistivity (CMR) in manganites invoke double exchange (DE) electron transfer between (formula presented) and (formula presented) ions, and coupling between the itinerant electrons and the dynamic Jahn-Teller (J-T) lattice distortions. Here we report using Mössbauer spectroscopy some very revealing commonalities in the magnetic behavior of (formula presented) which is representative of systems that do not exhibit DE electron transfer nor J-T distortions. These observations shed light on the origin of intrinsic CMR in general.

Original languageEnglish (US)
Pages (from-to)1-4
Number of pages4
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume66
Issue number21
DOIs
StatePublished - Jan 1 2002

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

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