Temperature Dependence of the Magnetocrystalline Anisotropy in Nd2Co14B Compound
来源期刊：Rare Metals1992年第3期
论文作者：赵志刚 孙校开 庄育智 葛运培 王景禹
文章页码：195 - 198
摘 要：<正> Easy and hard magnetization curves of Nd2Co14B compound have been measured withextracting-sample-magnetometer(μ0Hmax=6T)at 10～300 K.Magnetic anisotropy constants K1 and K2have been determined by fitting the hard magnetization curves,in which only K1 ,K2 and misalignment anglehave been taken as fitting parameters.The values of K1 and K2 at 4.2 K were derived by extrapolation.Anisotropy coefficients,x2° and x4°were derived from the anisotropy constants.The anisotropy constant K2increases rapidly with increasing temperature when T<Tsrand slowly when T>Tsr.The temperature depen-dence of the magnetic anisotropy coefficient x2° was fitted with the formula.The anisotropy coefficients x2°can be well described by the tenth-power law from 4.2 K to Tsrand by the sixth-power law from T(sr to 300 K.
赵志刚，孙校开，庄育智，葛运培，王景禹
摘 要：<正> Easy and hard magnetization curves of Nd2Co14B compound have been measured withextracting-sample-magnetometer(μ0Hmax=6T)at 10～300 K.Magnetic anisotropy constants K1 and K2have been determined by fitting the hard magnetization curves,in which only K1 ,K2 and misalignment anglehave been taken as fitting parameters.The values of K1 and K2 at 4.2 K were derived by extrapolation.Anisotropy coefficients,x2° and x4°were derived from the anisotropy constants.The anisotropy constant K2increases rapidly with increasing temperature when T<Tsrand slowly when T>Tsr.The temperature depen-dence of the magnetic anisotropy coefficient x2° was fitted with the formula.The anisotropy coefficients x2°can be well described by the tenth-power law from 4.2 K to Tsrand by the sixth-power law from T(sr to 300 K.
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