Title :
Low Temperature Magnetization Studies of Nanocrystalline Zn-Ferrite Thin Films
Author :
Bohra, Murtaza ; Prasad, Santasriya ; Venkataramani, N. ; Sahoo, S.C. ; Kumar, Narendra ; Krishnan, Ram
Author_Institution :
Indian Inst. of Technol., Mumbai, Mumbai, India
Abstract :
A study of temperature dependance of magnetization was carried out on nanocrystaline Zn-ferrite thin films deposited using Pulsed Laser Deposition (PLD) at three different substrate temperatures. The temperature dependence of the films deposited at ambient temperature, 350 and 850°C showed marked difference in the temperature dependence of their magnetization. While the sample deposited at 850°C showed predominantly antiferromagntic grains, the one deposited at 350°C showed a ferrimagnetic behavior. The ambient temperature deposited film showed mainly superparamagnetic grains.
Keywords :
antiferromagnetic materials; ferrites; grain size; low-temperature techniques; magnetic particles; magnetic thin films; magnetisation; nanofabrication; nanomagnetics; nanoparticles; paramagnetic materials; pulsed laser deposition; superparamagnetism; zinc compounds; PLD; ZnFe2O4; antiferromagnetic grain size; ferrimagnetic behavior; low-temperature magnetization; nanocrystalline zinc-ferrite thin films; nanopowders; pulsed laser deposition; substrate temperature; superparamagnetic grain; temperature 350 degC; temperature 850 degC; temperature dependance; Ferrites; Grain size; Magnetic properties; Magnetization; Temperature; Temperature dependence; Temperature measurement; Grain size dependent magnetism; low temperature magnetic properties; nano-crystalline Zn-ferrite;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2013.2239969
