THERMAL-EXPANSION COEFFICIENT OF FE-NI INVAR-ALLOYS AT LOW-TEMPERATURES

被引：11

作者：

ONO, F

机构：

[1] Department of Physics, Faculty of Science, Okayama University, Okayama 700

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1979年 / 47卷 / 01期

关键词：

D O I：

10.1143/JPSJ.47.84

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Thermal expansion coefficient of Fe-Ni Invar alloys at low temperatures has been examined by using the itinerant electron model. It has been found that the experimental values obtained by Schlosser et al. and by Zakharov and Fedotov could be explained satisfactorily up to about 200 K by using the expression derived in the present paper which has three terms, the normal lattice term, the spin wave term which is proportional to T1/2 and the single particle excitation term proportional to T. © 1979, THE PHYSICAL SOCIETY OF JAPAN. All rights reserved.

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页码：84 / 87

页数：4

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