Temperature Dependence of Ferromagnetic Anisotropy

Carr W. J.

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Temperature Dependence of Ferromagnetic Anisotropy

机译：铁磁各向异性的温度依赖性

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The temperature dependence of the crystalline anisotropy constants of iron, cobalt, and nickel is discussed. It is shown that Zener's result for iron (i.e., the first anisotropy constant varies as the tenth power of the magnetization) also may be derived from molecular field theory. In cobalt a satisfactory agreement with experiment is obtained by using Zener's results together with the postulate that the intrinsic anisotropy varies with thermal expansion in the manner recently calculated by the author. For nickel also the temperature dependence of K1 seems to require, in addition to the tenth power of the magnetization, a multiplicative factor that is linear in the temperature. No explanation has been found for this latter term.

机译：讨论了铁，钴和镍的晶体各向异性常数的温度依赖性。结果表明，铁的齐纳结果（即，第一各向异性常数随磁化强度的十次方而变化）也可以从分子场理论中得出。在钴中，通过使用齐纳尔的结果以及以下假设得出了令人满意的实验结果：固有各向异性随热膨胀而变化，该变化是作者最近计算出的。对于镍，除了磁化强度的十次方外，似乎还需要K1的温度依赖性，并且还需要一个在温度上呈线性的乘数。对于后一个术语未找到任何解释。

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来源
《Journal of Applied Physics》 |1958年第3期|共2页
作者
Carr W. J.;
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Westinghouse Research Laboratories, Pittsburgh 35, Pennsylvania;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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正文语种 eng
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Temperature Dependence of Ferromagnetic Anisotropy

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