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Pulsed Laser Deposition of High Coercivity Barium Ferrite Films

Published online by Cambridge University Press:  15 February 2011

W. D. Song ,
Y.F. Lu ,
J.P. Wang ,
X.T. Zeng ,
L. Lu  and
T.S. Low
W. D. Song
Affiliation:
Laser Microprocessing Laboratory, Data Storage Institute, 10 Kent Ridge Crescent, Singapore119260
Y.F. Lu
Affiliation:
Laser Microprocessing Laboratory, Data Storage Institute, 10 Kent Ridge Crescent, Singapore119260
J.P. Wang
Affiliation:
Laser Microprocessing Laboratory, Data Storage Institute, 10 Kent Ridge Crescent, Singapore119260
X.T. Zeng
Affiliation:
Gintic Institute of Manufacturing Technology, Nanyang Technological University, Singapore638075
L. Lu
Affiliation:
Department of Mechanical & Production Engineering, National University of Singapore, Singapore 119260.
T.S. Low
Affiliation:
Laser Microprocessing Laboratory, Data Storage Institute, 10 Kent Ridge Crescent, Singapore119260
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Abstract

Barium ferrite films with high coercivity (>2000 Oe) have been prepared on single crystal sapphire substrates by laser in-situ deposition. The structures of these films were characterized by x-ray diffractometry. X-ray diffraction pattern shows a preferential c-axis orientation normal to the film plane at a high deposition temperature and a random orientation at a lower deposition temperature. The magnetic properties of the films were analysed by a Vibrating Sample Magnetometer (VSM) and surface morphology was analysed by an Atomic Force Microscope (AFM).

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 526: Symposium Y – Advances in Laser Ablation of Materials , 1998 , 225
Copyright
Copyright © Materials Research Society 1998

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