Title :
Phase Transformation of FePt Nanoparticles
Author :
Liu, J. ; Elkins, K. ; Li, V. ; Nandwana, N. ; Poudyal, Z. ; Jin, Q.
Author_Institution :
Univ. of Texas at Arlington, Arlington
Abstract :
A new method has been developed to realize the fcc-fct structure phase transition while retaining the particle size and shape of the ferromagnetic nanoparticles. Heat treatment was used to convert the fcc structure to face-centered tetragonal structure in FePt nanoparticles of various sizes.
Keywords :
ferromagnetic materials; iron alloys; magnetic anisotropy; magnetic particles; nanoparticles; platinum alloys; solid-state phase transformations; spin fluctuations; superparamagnetism; FePt; face-centered cubic structure; face-centered tetragonal structure; fcc-fct phase transition; heat treatments; magnetic anisotropy; particle size; phase transformation; superparamagnetic; Annealing; Chemicals; Magnetic anisotropy; Magnetic recording; Magnetic separation; Magnets; Nanoparticles; Physics; Shape; Temperature;
Conference_Titel :
Magnetics Conference, 2006. INTERMAG 2006. IEEE International
Conference_Location :
San Diego, CA
Print_ISBN :
1-4244-1479-2
DOI :
10.1109/INTMAG.2006.376283
