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

Amar Nath, Z. Klencsár, E. Kuzmann, Z. Homonnay, A. Vértes, Athanassios Simopoulos, Eamonn Devlin, George Kallias, Arthur P. Ramirez, Robert J. Cava

Research output: Contribution to journalArticle

2 Citations (Scopus)

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

Fingerprint

magnetoresistivity
Magnetism
Magnetoresistance
spinel
Electrons
electron transfer
commonality
Jahn-Teller effect
Manganites
Spectroscopy
Ions
spectroscopy
spinell
ions
electrons

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Nanoscale magnetism in the chalcogenide spinel (formula presented) Common origin of colossal magnetoresistivity. / Nath, Amar; Klencsár, Z.; Kuzmann, E.; Homonnay, Z.; Vértes, A.; Simopoulos, Athanassios; Devlin, Eamonn; Kallias, George; Ramirez, Arthur P.; Cava, Robert J.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 66, No. 21, 01.01.2002, p. 1-4.

Research output: Contribution to journalArticle

Nath, Amar ; Klencsár, Z. ; Kuzmann, E. ; Homonnay, Z. ; Vértes, A. ; Simopoulos, Athanassios ; Devlin, Eamonn ; Kallias, George ; Ramirez, Arthur P. ; Cava, Robert J. / Nanoscale magnetism in the chalcogenide spinel (formula presented) Common origin of colossal magnetoresistivity. In: Physical Review B - Condensed Matter and Materials Physics. 2002 ; Vol. 66, No. 21. pp. 1-4.
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AU - Vértes, A.

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