Magnetic Properties of (Cr<sub>1-x</sub>Fe<sub>x</sub>)O<sub>2</sub>

Eiichi Hirota, Toshihiro Mihara, Tadashi Kawamata, M. Asanuma

Japanese Journal of Applied Physics · 1970 · 23 citations · 4 references

Concepts

Abstract

The solubility limit of Fe-ion in CrO 2 and the properties of (Cr 1- x Fe x )O 2 were examined. Added Fe-ions dissolve into CrO 2 and form an oxide of (Cr 1-2 x 4+ Cr x 5+ Fe x 3+ )O 2 , up to the x -value of about 0.06. The T c increases from 116°C for the pure CrO 2 to about 155°C with an Fe-addition of x =0.06. The magnetic moments of Fe 3+ and Cr 5+ couple in anti-parallel way to that of Cr 4+ .

References

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