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Effect of Hydrostatic and Shock‐Wave Compressions on the Magnetization of a 31.4 at.% Ni&sngbnd;Fe Alloy

 

作者: R. C. Wayne,  

 

期刊: Journal of Applied Physics  (AIP Available online 1969)
卷期: Volume 40, issue 1  

页码: 15-22

 

ISSN:0021-8979

 

年代: 1969

 

DOI:10.1063/1.1657021

 

出版商: AIP

 

数据来源: AIP

 

摘要:

The saturation magnetization of a 31.4 at.% Ni&sngbnd;Fe alloy has been measured as a function of hydrostatic pressure between 0 and 26 kbar, and as a function of shock‐wave compression between 2.5 and 112 kbar. From the hydrostatic pressure measurements, a zero‐pressure value of the pressure derivative of the saturation magnetization (∂ln&sgr;s/∂P) = −3.15×10−2kbar−1is found. A marked departure from linearity of &sgr;s(P) is seen at higher pressures. This is considered to be due to the slope of &sgr;s(T) becoming steeper and steeper at the ambient temperature as the Curie temperature is depressed by pressure. The shock‐wave compression experiments yield a value of (∂ ln&sgr;s/∂P) = −2.8×10−2kbar−1in the 15–40 kbar stress range.

 

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