Self-consistent Bloch equation for modeling element-specific demagnetization of magnetic alloys and multilayers

Xiankai Jiao; Lei Xu; Shufeng Zhang

doi:10.1063/1.4921113

Self-consistent Bloch equation for modeling element-specific demagnetization of magnetic alloys and multilayers

Xiankai Jiao, Lei Xu, Shufeng Zhang

Physics

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1 Scopus citations

Abstract

Magnetization dynamics of magnetic alloys and multilayers at high temperatures are studied by solving the self-consistent Bloch equation. Upon a fast rise of the temperature, usually driven by a strong femtosecond laser pulse, the element-specific demagnetization shows rich dynamic characteristics. We find that the demagnetization time scales could differ substantially for each constitutes in the same alloy. We discuss plausible reasons for the experimental results of the laser induced magnetization switching of GdFe ferrimagnetic compounds.

Original language	English (US)
Article number	193901
Journal	Journal of Applied Physics
Volume	117
Issue number	19
DOIs	https://doi.org/10.1063/1.4921113
State	Published - May 21 2015

ASJC Scopus subject areas

General Physics and Astronomy

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10.1063/1.4921113

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title = "Self-consistent Bloch equation for modeling element-specific demagnetization of magnetic alloys and multilayers",

abstract = "Magnetization dynamics of magnetic alloys and multilayers at high temperatures are studied by solving the self-consistent Bloch equation. Upon a fast rise of the temperature, usually driven by a strong femtosecond laser pulse, the element-specific demagnetization shows rich dynamic characteristics. We find that the demagnetization time scales could differ substantially for each constitutes in the same alloy. We discuss plausible reasons for the experimental results of the laser induced magnetization switching of GdFe ferrimagnetic compounds.",

author = "Xiankai Jiao and Lei Xu and Shufeng Zhang",

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AU - Jiao, Xiankai

AU - Xu, Lei

AU - Zhang, Shufeng

PY - 2015/5/21

Y1 - 2015/5/21

N2 - Magnetization dynamics of magnetic alloys and multilayers at high temperatures are studied by solving the self-consistent Bloch equation. Upon a fast rise of the temperature, usually driven by a strong femtosecond laser pulse, the element-specific demagnetization shows rich dynamic characteristics. We find that the demagnetization time scales could differ substantially for each constitutes in the same alloy. We discuss plausible reasons for the experimental results of the laser induced magnetization switching of GdFe ferrimagnetic compounds.

AB - Magnetization dynamics of magnetic alloys and multilayers at high temperatures are studied by solving the self-consistent Bloch equation. Upon a fast rise of the temperature, usually driven by a strong femtosecond laser pulse, the element-specific demagnetization shows rich dynamic characteristics. We find that the demagnetization time scales could differ substantially for each constitutes in the same alloy. We discuss plausible reasons for the experimental results of the laser induced magnetization switching of GdFe ferrimagnetic compounds.

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Self-consistent Bloch equation for modeling element-specific demagnetization of magnetic alloys and multilayers

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