Synthesis and characterization of chemically ordered FePt magnetic nano-particles

Srinivasa Rao K.; Balaji T.; Lingappa Y.Reddy M.R.P.Kumar A.Prakash T.L.

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Synthesis and characterization of chemically ordered FePt magnetic nano-particles

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Monodispersed FePt alloy magnetic nano-particles are prepared by reduction of platinum acetyl acetonate and iron acetyl acetonate salts together in the presence of oleic acid and oleyl amine stabilizers by polyol process. The particle size of FePt is in the range of 23 nm confirmed by transmission electron microscopy (TEM). As-synthesized FePt nano-particles are chemically disordered with face centre cubic (fcc) structure where as after vacuum annealing these particles changed to face centre tetragonal (fct) ordered structure confirmed by the X-ray diffraction technique. Magnetic coercivity of 5.247 KOe was observed for fct structure.

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来源
《Physica, B. Condensed Matter》 |2010年第16期|3205-3207|共3页
作者
Srinivasa Rao K.; Balaji T.; Lingappa Y.Reddy M.R.P.Kumar A.Prakash T.L.;
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作者单位

Centre for Materials for Electronics Technology (C-MET), IDA Phase-III, Cherlapally, Hyderabad 500 051, India;

Department of Chemistry, Sri Venkateswara University, Tirupati 517 502, India;

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原文格式 PDF
正文语种英语
中图分类物理学;
关键词
Fct structure; FePt nano-particles; Magnetic properties;

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Synthesis and characterization of chemically ordered FePt magnetic nano-particles

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