Synthesis, structure and magnetic properties of L10 alloy (FePt)100−xZnx nanoparticles

In the present work, alloy (FePt) 100− x Zn x nanoparticles have been successfully synthesized by simple wet chemical method with the aid of Pt(acac) 2 , Fe(acac) 3 and Zn(acac) 2 as the starting reagents. Oleic acid and oleylamine was used as a surfactant agent. The addition of zinc promoted the fa...

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Veröffentlicht in:Applied physics. A, Materials science & processing Materials science & processing, 2016, Vol.122 (4)
Hauptverfasser: Zeynali, Hossein, Akbari, Hossein, Bakhshayeshi, Ali
Format: Artikel
Sprache:eng
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Zusammenfassung:In the present work, alloy (FePt) 100− x Zn x nanoparticles have been successfully synthesized by simple wet chemical method with the aid of Pt(acac) 2 , Fe(acac) 3 and Zn(acac) 2 as the starting reagents. Oleic acid and oleylamine was used as a surfactant agent. The addition of zinc promoted the face-centered cubic to tetragonal phase transition. Reduction in temperature required for this transition compared with FePt nanoparticles with no additives. This reduction in ordering temperature significantly reduces FePt particle coalescence and enhancing chemical ordering, so magnetic measurements show high coercivity up to 6 kOe of the (FePt) 82 Zn 18 nanoparticles with average size
ISSN:0947-8396
1432-0630
DOI:10.1007/s00339-016-9870-8