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Mossbauer spectroscopy studies in supersaturated FexCo 50-xCu50 solid solutions

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7 Author(s)
Kim, Won-Tae ; Dept. of Phys., Chongju Univ., South Korea ; Yong-Goo Yoo ; Seong-Cho Yu ; Agudo, P.
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Local structural change in mechanically alloyed FexCo 50-xCu50 (x=10, 20, 30, 40 and 50) powders has been investigated by Mossbauer spectroscopy and X-ray diffractometry at room temperature. Mossbauer spectra from mechanically alloyed Fex Co50-xCu50 samples consist of three different subspectra: a sextet, a broad sextet and a doublet corresponding to an α-Fe phase, to a disordered ferromagnetic phase of fcc solid solution, and to a non-ferromagnetic phase, respectively. With increasing processing time, the disordered ferromagnetic phase becomes dominant, indicating a formation of fcc solid solution during mechanical alloying. With increasing Co content, the hyperfine field of the disordered magnetic phase increases from about 20 to 25 T

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Magnetics, IEEE Transactions on  (Volume:33 ,  Issue: 5 )