Evidence for breakdown of ferromagnetic order below (formula presented) in the manganite (formula presented)

Vladimir Chechersky; Amar Nath; I. Isaac; J. Franck; Kartik Ghosh; Honglyoul Ju; R. Greene

doi:10.1103/PhysRevB.59.497

Evidence for breakdown of ferromagnetic order below (formula presented) in the manganite (formula presented)

Vladimir Chechersky, Amar Nath, I. Isaac, J. Franck, Kartik Ghosh, Honglyoul Ju, R. Greene

Department of Physics

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

77 Citations (Scopus)

Abstract

We report an emission Mössbauer study of the ferromagnetic metal (Formula presented) where a few parts-per-million of Mn are replaced by (Formula presented) The behavior observed is dramatically different than that for a conventional ferromagnet. The data give strong evidence for an anomalous gradual crumbling of the ferromagnetic order, and the formation of spin clusters below as well as above the Curie temperature (Formula presented) Application of a magnetic field, even well above (Formula presented) results in a dramatic coalescence of small spin clusters into larger clusters with more ordered spins. The cluster size is found to be strongly dependent on the magnitude of the applied field.

Original language	English
Pages (from-to)	497-502
Number of pages	6
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	59
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevB.59.497
Publication status	Published - 1999

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.59.497

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abstract = "We report an emission M{\"o}ssbauer study of the ferromagnetic metal (Formula presented) where a few parts-per-million of Mn are replaced by (Formula presented) The behavior observed is dramatically different than that for a conventional ferromagnet. The data give strong evidence for an anomalous gradual crumbling of the ferromagnetic order, and the formation of spin clusters below as well as above the Curie temperature (Formula presented) Application of a magnetic field, even well above (Formula presented) results in a dramatic coalescence of small spin clusters into larger clusters with more ordered spins. The cluster size is found to be strongly dependent on the magnitude of the applied field.",

author = "Vladimir Chechersky and Amar Nath and I. Isaac and J. Franck and Kartik Ghosh and Honglyoul Ju and R. Greene",

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T1 - Evidence for breakdown of ferromagnetic order below (formula presented) in the manganite (formula presented)

AU - Chechersky, Vladimir

AU - Nath, Amar

AU - Isaac, I.

AU - Franck, J.

AU - Ghosh, Kartik

AU - Ju, Honglyoul

AU - Greene, R.

PY - 1999

Y1 - 1999

N2 - We report an emission Mössbauer study of the ferromagnetic metal (Formula presented) where a few parts-per-million of Mn are replaced by (Formula presented) The behavior observed is dramatically different than that for a conventional ferromagnet. The data give strong evidence for an anomalous gradual crumbling of the ferromagnetic order, and the formation of spin clusters below as well as above the Curie temperature (Formula presented) Application of a magnetic field, even well above (Formula presented) results in a dramatic coalescence of small spin clusters into larger clusters with more ordered spins. The cluster size is found to be strongly dependent on the magnitude of the applied field.

AB - We report an emission Mössbauer study of the ferromagnetic metal (Formula presented) where a few parts-per-million of Mn are replaced by (Formula presented) The behavior observed is dramatically different than that for a conventional ferromagnet. The data give strong evidence for an anomalous gradual crumbling of the ferromagnetic order, and the formation of spin clusters below as well as above the Curie temperature (Formula presented) Application of a magnetic field, even well above (Formula presented) results in a dramatic coalescence of small spin clusters into larger clusters with more ordered spins. The cluster size is found to be strongly dependent on the magnitude of the applied field.

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Evidence for breakdown of ferromagnetic order below (formula presented) in the manganite (formula presented)

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