Structural and Magnetic Properties of Chemically Synthesized FexPt100-x Nanoparticles with Controlled Particle Size and Shape

Author

Huang, Y. ; Colak, L. ; Wang, H. ; Ni, C. ; Weller, D.

Author_Institution

Delaware Univ., Newark

fYear

2006

fDate

8-12 May 2006

Firstpage

27

Lastpage

27

Abstract

Fe_xPt_100-x nanoparticles were synthesized by thermal decomposition of iron pentacarbonyl and reduction of platinum acetylacetonate. The structural and magnetic properties of the nanoparticles with controlled particle size and shape were studied. The nanoparticles show superparamagnetic behavior. The particles also show hard magnetic properties with coercivity of more than 12 kOe after annealing. HRTEM and Mossbauer studies were carried out to investigate the microstructural development in annealed samples.

Keywords

Mossbauer effect; annealing; coercive force; crystal microstructure; ferromagnetic materials; iron alloys; magnetic particles; nanoparticles; nanotechnology; particle size; permanent magnets; platinum alloys; pyrolysis; reduction (chemical); superparamagnetism; transmission electron microscopy; FePt; Mossbauer studies; TEM; annealing; chemically synthesized nanoparticles; coercivity; hard magnetic properties; iron pentacarbonyl; microstructural development; particle shape; particle size; platinum acetylacetonate; reduction; superparamagnetic behavior; thermal decomposition; Annealing; Chemicals; Coercive force; Iron; Magnetic properties; Nanoparticles; Platinum; Shape control; Size control; Thermal decomposition;

fLanguage

English

Publisher

ieee

Conference_Titel

Magnetics Conference, 2006. INTERMAG 2006. IEEE International

Conference_Location

San Diego, CA

Print_ISBN

1-4244-1479-2

Type

conf

DOI

10.1109/INTMAG.2006.375527

Filename

4261461