Microstructure and magnetic properties of zinc ferrite thin films produced by pulsed laser deposition |
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Authors: | D Ravinder |
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Affiliation: | (1) Department of Physics, Osmania University, 500 007 Hyderabad, India |
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Abstract: | Zinc ferrite thin films were deposited from a target of zinc ferrite onto a MgO substrate using XeCl excimer laser operating
at 308 nm and frequency of 30 Hz. The crystallographic characterizations of the films were performed using X-ray diffraction
(XRD). Microstructure, surface morphology, chemical composition and grain size, as well as surface roughness were obtained
from scanning electron microscope (SEM), energy dispersive spectroscopy (EDS) and atomic force microscopy (AFM). The magnetic
properties of the thin films were studied in the temperature range 5–300 K and in fields of up to 5 T using SQUID magnetometry.
Data on temperature and field dependence of magnetization provide a strong evidence for superparamagnetism.
Paper presented at 8 AGM of MRSI, BARC, Mumbai, 1997. |
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Keywords: | Pulsed laser deposition magnetic properties ferrite thin films |
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