MÖSSBAUER STUDIES OF MAGNETIC ANISOTROPY OF AMORPHOUS Fe-(Co, Cr)-Zr ALLOYS

Huang Zhigao

Nuclear Science and Techniques

pp.45-50

Published in print 01 Feb 1992

21800

Magnetic anisotropies and hyperfine fields of amorphous a-Fe-(Co, Cr)-Zr alloys, their temperature and thermal stress effects were studied by using a Mössbauer spectroscopy. The results are in the following: A tensile stress field is easily created during the material production process, having the plane anisotropy to be increased for the alloys containing strong ferromagnetic coupling such as Fe-Co and Fe-Ni; a pressure stress field is easily produced, making the perpendicular anisotropy increase for the alloys containing antiferromagnetic coupling such as Fe-Cr and Fe-Mn. Introducing the new idea of attractive and repulsive forces, the fact was explained well that the dependence of anisotropies on the average outer electron concentration of 3d transition metal is similar to that of the average hyperfine field.

Mössbauer spectroscopyMagnetic anisotropyHyperfine field

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