Nanoscale magnetism in the chalcogenide spinel FeCr2S4: 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 J. Cava

Nanoscale magnetism in the chalcogenide spinel FeCr₂S₄: 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 J. Cava

Research output: Contribution to journal › Article › peer-review

12 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 Mn³⁺ and Mn⁴⁺ 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 FeCr₂S₄, 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 language	English (US)
Article number	212401
Pages (from-to)	2124011-2124014
Number of pages	4
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	66
Issue number	21
State	Published - Dec 1 2002

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

Cite this

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title = "Nanoscale magnetism in the chalcogenide spinel FeCr2S4: Common origin of colossal magnetoresistivity",

abstract = "Most of the models purporting to explain the intriguing observation of colossal magnetoresistivity (CMR) in manganites invoke double exchange (DE) electron transfer between Mn3+ and Mn4+ ions, and coupling between the itinerant electrons and the dynamic Jahn-Teller (J-T) lattice distortions. Here we report using M{\"o}ssbauer spectroscopy some very revealing commonalities in the magnetic behavior of FeCr2S4, 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.",

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T1 - Nanoscale magnetism in the chalcogenide spinel FeCr2S4

T2 - Common origin of colossal magnetoresistivity

AU - Nath, Amar

AU - Klencsár, Zoltán

AU - Kuzmann, Erno

AU - Homonnay, Zoltán

AU - Vértes, Attila

AU - Simopoulos, Athanassios

AU - Devlin, Eamonn

AU - Kallias, George

AU - Ramirez, Arthur P.

AU - Cava, Robert J.

PY - 2002/12/1

Y1 - 2002/12/1

N2 - Most of the models purporting to explain the intriguing observation of colossal magnetoresistivity (CMR) in manganites invoke double exchange (DE) electron transfer between Mn3+ and Mn4+ 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 FeCr2S4, 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.

AB - Most of the models purporting to explain the intriguing observation of colossal magnetoresistivity (CMR) in manganites invoke double exchange (DE) electron transfer between Mn3+ and Mn4+ 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 FeCr2S4, 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.

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Nanoscale magnetism in the chalcogenide spinel FeCr₂S₄: Common origin of colossal magnetoresistivity

Abstract

All Science Journal Classification (ASJC) codes

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