Preparation and magnetic properties of Ni–Zn ferrite thin films

Nickel–zinc ferrite thin films were deposited from a target of Ni 0.2Zn 0.8Fe 2O 4 onto a SrTiO 3 using XeCl excimer laser operating at 308 nm and frequency of 30 Hz. 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 magnet...

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Veröffentlicht in:	Materials letters 2003-09, Vol.57 (26), p.4162-4164
Hauptverfasser:	Ravinder, D., Vijay Kumar, K., Ramana Reddy, A.V.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Domain effects, magnetization curves, and hysteresis Exact sciences and technology Magnetic properties and materials Magnetic properties of monolayers and thin films Magnetic properties of surface, thin films and multilayers Magnetization curves, hysteresis, Barkhausen and related effects Magnetization curves, magnetization reversal, hysteresis, barkhausen and related effects Ni–Zn ferrite thin films Physics Pulsed laser deposition SQUID magnetometry Superparamagnetism
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Zusammenfassung:	Nickel–zinc ferrite thin films were deposited from a target of Ni 0.2Zn 0.8Fe 2O 4 onto a SrTiO 3 using XeCl excimer laser operating at 308 nm and frequency of 30 Hz. 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. Field (FC) and zero field cooled (ZFC) magnetization studies have also been carried out at low fields from 5 to 300 K. Data on temperature and field dependence of magnetization provide a strong evidence for supermagnetism.
ISSN:	0167-577X 1873-4979
DOI:	10.1016/S0167-577X(03)00091-0