Magnetic and Structural Properties of Fe-Based Nanoparticles

被引：0
|
作者：
Milkovic, O. [1 ,2 ,3 ]
Cesnek, M. [4 ]
Gamcova, J. [1 ,2 ]
Kmjec, T. [5 ]
Kohout, J. [5 ]
Reiffers, M. [6 ]
Varga, R. [7 ]
机构：
[1] Slovak Acad Sci, Inst Mat Res, Watsonova 47, Kosice 04001, Slovakia
[2] Tech Univ Kosice, Inst Mat & Qual Engn, Fac Mat Met & Recycling, Letna 9, Kosice 04200, Slovakia
[3] Slovak Acad Sci, Inst Expt Phys, Watsonova 47, Kosice, Slovakia
[4] Czech Tech Univ, Fac Nucl Sci & Phys Engn, Dept Nucl Reactors, V Holesovickach 2, Prague 18000 8, Czech Republic
[5] Charles Univ Prague, Fac Math & Phys, V Holesovickach 2, Prague 18000, Czech Republic
[6] Presov Univ, Fac Humanities & Nat Sci, Presov, Slovakia
[7] Safarik Univ, CPM TIP, Pk Angelinum 9, Kosice 04154, Slovakia
来源：
ACTA PHYSICA POLONICA A | 2020年 / 137卷 / 05期
关键词：
D O I：
10.12693/APhysPolA.137.723
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In this study, nanoparticles were prepared by precipitation from solid solution of saturated binary Cu-Fe alloy with subsequent electrochemical dissolution of the surrounding matrix. As-prepared nanoparticles were studied by the Mossbauer spectroscopy and scanning transmission electron microscopy. Results show that the as-prepared nanoparticles have core-shell character and their mean size is dependent on annealing time. The Mossbauer spectroscopy revealed major crystalline phase which was identified as alpha-Fe and relatively disordered minor phase which was identified as maghemite (gamma-Fe2O3). Magnetic measurements suggest that saturated magnetization is not only dependent on core diameter of nanoparticles but also on its structure.
引用
收藏
页码：723 / 725
页数：3
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