Noncollinear spin states and competing interactions in half-metals and magnetic perovskites

R. Skomski; J. Zhou; P. A. Dowben; D. J. Sellmyer

doi:10.1063/1.1851412

Noncollinear spin states and competing interactions in half-metals and magnetic perovskites

R. Skomski, J. Zhou, P. A. Dowben, D. J. Sellmyer

Physics and Astronomy

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5 Scopus citations

Abstract

The high-field spin structure of magnetic perovskites and related magnetoresistive materials is investigated by model calculations. Competing exchange as well as real-structure-dependent random field, random anisotropy, and Dzyaloshinskii-Moriya interactions yield a noncollinear magnetic structure that may be called a spin colloid. The noncollinear structure, which contributes to the zero- and finite-temperature spin mixing and reduces the magnetoresistance, is strongly field dependent.

Original language	English (US)
Article number	10C305
Journal	Journal of Applied Physics
Volume	97
Issue number	10
DOIs	https://doi.org/10.1063/1.1851412
State	Published - May 15 2005

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Physics and Astronomy(all)

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10.1063/1.1851412

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abstract = "The high-field spin structure of magnetic perovskites and related magnetoresistive materials is investigated by model calculations. Competing exchange as well as real-structure-dependent random field, random anisotropy, and Dzyaloshinskii-Moriya interactions yield a noncollinear magnetic structure that may be called a spin colloid. The noncollinear structure, which contributes to the zero- and finite-temperature spin mixing and reduces the magnetoresistance, is strongly field dependent.",

author = "R. Skomski and J. Zhou and Dowben, {P. A.} and Sellmyer, {D. J.}",

note = "Funding Information: This work is supported by NSF-MRSEC, NRI, and CMRA.",

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AU - Skomski, R.

AU - Zhou, J.

AU - Dowben, P. A.

AU - Sellmyer, D. J.

N1 - Funding Information: This work is supported by NSF-MRSEC, NRI, and CMRA.

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N2 - The high-field spin structure of magnetic perovskites and related magnetoresistive materials is investigated by model calculations. Competing exchange as well as real-structure-dependent random field, random anisotropy, and Dzyaloshinskii-Moriya interactions yield a noncollinear magnetic structure that may be called a spin colloid. The noncollinear structure, which contributes to the zero- and finite-temperature spin mixing and reduces the magnetoresistance, is strongly field dependent.

AB - The high-field spin structure of magnetic perovskites and related magnetoresistive materials is investigated by model calculations. Competing exchange as well as real-structure-dependent random field, random anisotropy, and Dzyaloshinskii-Moriya interactions yield a noncollinear magnetic structure that may be called a spin colloid. The noncollinear structure, which contributes to the zero- and finite-temperature spin mixing and reduces the magnetoresistance, is strongly field dependent.

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Noncollinear spin states and competing interactions in half-metals and magnetic perovskites

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