Influence of segregation on magnetic order in Cr75(Fe
x
Mn1−x
)25, 0.64 ≤x ≤ 0.85 |
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| Authors: | W M Xu A Pösinger R Wagoner M Reissner W Steiner G Wiesinger M Acet |
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| Institution: | (1) Institut für Angewandte und Technische Physik and Institut für Experimentalphysik, Technical University Vienna, Wiedner Hauptstrasse 8-10, A-1040 Vienna, Austria;(2) Universität Duisburg, Duisburg, Germany |
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| Abstract: | Mössbauer and magnetic measurements on Cr75(Fe,Mn)25 alloys, which were segregated and re-disordered by appropriate heat treatments, are reported. A primary factor for the kind of magnetic order which appears is the Cr concentration around the Mössbauer probe atom. At around 15 K, a transition to a re-entrant spin-glass state occurs. For this state, the hyperfine field distributions of all investigated disordered and re-disordered samples are independent of the Fe concentration. |
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