Study of the effect of disorder on the local magnestism in Heusler alloys
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Journal of Applied Physics
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A local study of the influence of annealing temperature that can provoke structural defects and
chemical disorder on the magnetism of Heusler alloys has been carried out by measuring hyperfine
interactions in Pd2MnZ (Z=Ge, In, Sn, and Sb). Perturbed angular correlation method has been used
to measure the hyperfine fields at 111Cd probe nuclei substituting the Mn and Z sites as a function
of temperature. The fraction of 111In-nuclei-occupying Mn sites was found to increase with the
annealing of sample at higher temperatures followed by quenching that can leave the alloy in a
disordered state. As a consequence, it was possible to observe the effect of temperature in the
ordering of the alloys. Moreover, electric quadrupole interaction measurements clearly indicated
chemical disorder after quenching in Pd2MnSn and an improvement in the ordering of the Pd2MnGe
structure at high temperatures.
Como referenciar
CARBONARI, A.W.; SAXENA, R.N.; MESTNIK FILHO, J.; CABRERA PASCA, G.A.; RAO, M.N.; OLIVEIRA, J.R.B.; RIZZUTO, M.A. Study of the effect of disorder on the local magnestism in Heusler alloys. Journal of Applied Physics, v. 99, p. p. 104-106, 2006. DOI: 10.1063/1.2172222. Disponível em: http://repositorio.ipen.br/handle/123456789/5390. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.