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2015 | 127 | 2 | 394-396
Article title

The Effect of Phase Decomposition on Magnetic Structure of Cu_{0.4}Mn_{0.3}Ni_{0.3} Alloy

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EN
Abstracts
EN
The purpose of present investigation was to study the effects of phase decomposition of the Cu_{0.4}Mn_{0.3}Ni_{0.3} alloy on its magnetic ordering. The single-crystal sample was examined by elastic neutron scattering before and after five subsequent annealing runs. The results indicate that in small fraction of the quenched sample volume there are two types of antiferromagnetic order: one of them AF1 of the long range, the other one of the short range. Ageing induces phase decomposition which yields disappearance of AF1 long range order and increase of the volume of new ordered phase. The results of the investigations of the aged sample indicate that regions of new tetragonal phase exhibit antiferromagnetic ordering with magnetic moments of Mn atoms arranged as in the pure compound MnNi but with unequal domain distribution. The intensity of magnetic component of super-structure reflections increases with the duration of ageing at lower rate than component due to atomic order.
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Contributors
author
  • National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland
  • National Centre for Nuclear Research, 05-400 Otwock-Świerk, Poland
References
  • [1] J. Rolland, P. Priester, D. Whitwham, C.R. Acad. Sci. Paris C 270, 1777 (1970)
  • [2] D. Rondot, J. Mignot, Acta Metall. 26, 217 (1978), doi: 10.1016/0001-6160(78)90121-9
  • [3] N.A. Polyakova, V.A. Udovenko, E.D. Chichua, Fiz. Metal. Metalloved. 71, 178 (1991) (in Russian)
  • [4] N.A. Polyakova, V.A. Udovenko, E.D. Chichua, Fiz. Metal. Metalloved. 66, 1144 (1988) (in Russian)
  • [5] J.S. Kasper, J.S. Kouvel, J. Phys. Chem. Solids 11, 231 (1959), doi: 10.1016/0022-3697(63)90515-8
  • [6] E. Krén, E. Nagy, I. Nagy, L. Pál, P. Szabó, Phys. Chem. Solids 29, 101 (1968), doi: 10.1016/0022-3697(68)90259-X
Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv127n2075kz
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