| Numéro |
J. Phys. Colloques
Volume 49, Numéro C8, Décembre 1988
Proceedings of the International Conference on Magnetism
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|
|---|---|---|
| Page(s) | C8-173 - C8-174 | |
| DOI | https://doi.org/10.1051/jphyscol:1988873 | |
Proceedings of the International Conference on Magnetism
J. Phys. Colloques 49 (1988) C8-173-C8-174
DOI: 10.1051/jphyscol:1988873
1 Laboratory of Physics, Faculty of General Education, Shibaura Institute of Technology, Fukasaku, Oomiya, Saitama 330, Japan
2 Institute for Materials Research, Tohoku University, Sendai 980, Japan
J. Phys. Colloques 49 (1988) C8-173-C8-174
DOI: 10.1051/jphyscol:1988873
MAGNETIC PROPERTIES OF ε-MnGa ALLOYS WITH THE DO19 TYPE STRUCTURE
H. Niida1, T. Hori1 et Y. Nakagawa21 Laboratory of Physics, Faculty of General Education, Shibaura Institute of Technology, Fukasaku, Oomiya, Saitama 330, Japan
2 Institute for Materials Research, Tohoku University, Sendai 980, Japan
Abstract
X-ray diffraction and magnetic measurements have shown that ε-MnGa alloys with the DO19 type structure are stable at 600 °C in a composition range of 70-74 at% Mn. The Néel temperature is 450-490 K depending on the composition. Below 200-350 K the hexagonal lattice distorts to orthorhombic, and the materials exhibit a large spontaneous magnetization.