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首页> 外文期刊>IEEE Transactions on Magnetics >Exchange stiffness constant and effective gyromagnetic factor of Gd, Tb and Nd containing, amorphous rare earth-transition metal films
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Exchange stiffness constant and effective gyromagnetic factor of Gd, Tb and Nd containing, amorphous rare earth-transition metal films

机译：含非晶态稀土过渡金属膜的Gd，Tb和Nd的交换刚度常数和有效旋磁因子

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摘要

The exchange stiffness constant and the effective gyromagnetic factor of amorphous Gd/sub 13.5/Tb/sub 6.2/Fe/sub 80.3/, Gd/sub 21.2/Co/sub 78.8/, Gd/sub 19.4/Nd/sub 6.1/Fe/sub 74.5/ and Gd/sub 19.6/Nd/sub 10.3/Fe/sub 70.1/ alloy films have been determined by Brillouin light scattering and from measurements of the domain wall energy. All samples, which show a constant Curie temperature of 465 K, exhibit the same exchange stiffness constant, as measured by Brillouin light. The obtained values of both methods agree Gd/sub 13.5/Tb/sub 6.2/Fe/sub 80.3/ and Gd/sub 21.2/Co/sub 78.8/ films, but not for the Nd containing films. The latter is attributed to a breakdown of the standard Bloch domain wall equation in Nd containing systems.
机译：非晶态Gd / sub 13.5 / Tb / sub 6.2 / Fe / sub 80.3 /，Gd / sub 21.2 / Co / sub 78.8 /，Gd / sub 19.4 / Nd / sub 6.1 / Fe /的交换刚度常数和有效旋磁因子通过布里渊光散射和畴壁能量的测量，确定了74.5 /和19.6 / Nd / 10.3 / Fe / 70.1 / Gd合金膜。所有显示出居里温度恒定为465 K的样品，都具有相同的交换刚度常数，这是由布里渊光测量的。两种方法获得的值均与Gd / sub 13.5 / Tb / sub 6.2 / Fe / sub 80.3 /和Gd / sub 21.2 / Co / sub 78.8 /膜一致，但对于含Nd膜则不同。后者归因于含Nd系统中标准Bloch域壁方程的分解。

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