Megnetocrystalline Anisotropy of Pyrrhotite

概要

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Magnetization curves in the base plane and along the c-axis of natural pyirrhoite crystals (Fe_7S_8) are measured up to a magnetic field strength of 90 kOe. The results can be expressed in terms of the magnetocrystalline anisotropy energy, Ek=-K_0|cosθ|+K_8cos^2θ+K_4cos^4θ, the last term being the correction term for the preceding one. The values of K_0,K_8 and K_4 obtained are K_0=0.51×10^6erg/cc, K_3=3.2×10^6erg/cc and K_4=0.098×10^6erg/cc at293°K and K_0=1.2×10^6erg/cc K_3=4.2x1O^6erg/cc and K_4=0.21×10^6erg/cc at 77°K. These values obtained are discussed on the basis of Adachi's theory of magnetocrystalline anisotropy.
社団法人日本物理学会の論文
1964-09-05

著者

HIRONE Tokutaro
The Research Institute for Iron, Steel and Other Metals
Sato Kiyoo
The Faculty Of Engineering Nogoya University
Sato Kiyoo
The Research Institute For Iron Steel And Other Metals
YAMADA Motohiko
The Research Institute for Iron, Steel and Other Metals
Sato Kiyoo
The Research Institute For Iron Steel And Other Metals Tohoku University
Hirone Tokutaro
The Research Institute For Iron Steel And Other Metals
Yamada Motohiko
The Research Institute For Iron Steel And Other Metals

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Megnetocrystalline Anisotropy of Pyrrhotite

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