Intrinsic magnetic properties of single-phase Mn(1+x)Ga (0 < x < 1) alloys

Magnetization measurements have been carried out on a series of carefully prepared single-phase Mn(1 + x)Ga (0 < x < 1) alloys. The saturation magnetization M(s), measured at 5 K, has a value of 92.0 emu/g for x = 0.15. This is the highest value reported in these alloys and is close to the cal...

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Detalles Bibliográficos
Autores principales: Lu, Q. M., Yue, M., Zhang, H. G., Wang, M. L., Yu, F., Huang, Q. Z., Ryan, D. H., Altounian, Z.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2015
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4657014/
https://www.ncbi.nlm.nih.gov/pubmed/26597458
http://dx.doi.org/10.1038/srep17086
Descripción
Sumario:Magnetization measurements have been carried out on a series of carefully prepared single-phase Mn(1 + x)Ga (0 < x < 1) alloys. The saturation magnetization M(s), measured at 5 K, has a value of 92.0 emu/g for x = 0.15. This is the highest value reported in these alloys and is close to the calculated value of 116 emu/g for the stoichiometric compound (x = 0). M(s) decreases gradually with x and has a value of 60.7 emu/g for x = 0.86. This behavior is consistent with the extra Mn atoms occupying Ga sites and coupling antiferromagnetically with the rest of the Mn atoms. The intrinsic magnetic properties of the Mn-Ga alloys indicate their great potential as novel, rare-earth free permanent magnetic materials.

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