Temperature dependence of magnetic hysteresis of RCox:Co nanocomposites (R=Pr and Sm)

J. P. Liu; R. Skomski; Y. Liu; D. J. Sellmyer

doi:10.1063/1.372826

Temperature dependence of magnetic hysteresis of RCo_x:Co nanocomposites (R=Pr and Sm)

J. P. Liu, R. Skomski, Y. Liu, D. J. Sellmyer

Physics and Astronomy

Research output: Contribution to journal › Conference article › peer-review

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Abstract

The temperature dependence of magnetic hysteresis of RCo_x:Co (R=Pr and Sm) nanocomposite films is reported. These films are prepared by dc and rf sputtering and subsequent thermal processing. It is found that the squareness of the hysteresis loops deteriorates with decreasing temperature. This is attributed to the enhanced magnetic anisotropy of the hard phases at low temperatures. The analysis of the magnetic reversal process shows that the anisotropy enhancement leads to a transition from cooperated to independent behavior. This analysis agrees well with the experimental results.

Original language	English (US)
Pages (from-to)	6740-6742
Number of pages	3
Journal	Journal of Applied Physics
Volume	87
Issue number	9 III
DOIs	https://doi.org/10.1063/1.372826
State	Published - May 1 2000
Event	44th Annual Conference on Magnetism and Magnetic Materials - San Jose, CA, United States Duration: Nov 15 1999 → Nov 18 1999

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General Physics and Astronomy

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title = "Temperature dependence of magnetic hysteresis of RCox:Co nanocomposites (R=Pr and Sm)",

abstract = "The temperature dependence of magnetic hysteresis of RCox:Co (R=Pr and Sm) nanocomposite films is reported. These films are prepared by dc and rf sputtering and subsequent thermal processing. It is found that the squareness of the hysteresis loops deteriorates with decreasing temperature. This is attributed to the enhanced magnetic anisotropy of the hard phases at low temperatures. The analysis of the magnetic reversal process shows that the anisotropy enhancement leads to a transition from cooperated to independent behavior. This analysis agrees well with the experimental results.",

author = "Liu, {J. P.} and R. Skomski and Y. Liu and Sellmyer, {D. J.}",

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note = "44th Annual Conference on Magnetism and Magnetic Materials ; Conference date: 15-11-1999 Through 18-11-1999",

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TY - JOUR

T1 - Temperature dependence of magnetic hysteresis of RCox:Co nanocomposites (R=Pr and Sm)

AU - Liu, J. P.

AU - Skomski, R.

AU - Liu, Y.

AU - Sellmyer, D. J.

PY - 2000/5/1

Y1 - 2000/5/1

N2 - The temperature dependence of magnetic hysteresis of RCox:Co (R=Pr and Sm) nanocomposite films is reported. These films are prepared by dc and rf sputtering and subsequent thermal processing. It is found that the squareness of the hysteresis loops deteriorates with decreasing temperature. This is attributed to the enhanced magnetic anisotropy of the hard phases at low temperatures. The analysis of the magnetic reversal process shows that the anisotropy enhancement leads to a transition from cooperated to independent behavior. This analysis agrees well with the experimental results.

AB - The temperature dependence of magnetic hysteresis of RCox:Co (R=Pr and Sm) nanocomposite films is reported. These films are prepared by dc and rf sputtering and subsequent thermal processing. It is found that the squareness of the hysteresis loops deteriorates with decreasing temperature. This is attributed to the enhanced magnetic anisotropy of the hard phases at low temperatures. The analysis of the magnetic reversal process shows that the anisotropy enhancement leads to a transition from cooperated to independent behavior. This analysis agrees well with the experimental results.

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U2 - 10.1063/1.372826

DO - 10.1063/1.372826

M3 - Conference article

AN - SCOPUS:0000760979

SN - 0021-8979

VL - 87

SP - 6740

EP - 6742

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 9 III

T2 - 44th Annual Conference on Magnetism and Magnetic Materials

Y2 - 15 November 1999 through 18 November 1999

ER -

Temperature dependence of magnetic hysteresis of RCo_x:Co nanocomposites (R=Pr and Sm)

Abstract

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