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Columnar co-ferrite films with high coercivity on glass and silica substrate by sol-gel method

Y. OKAZAKI1,* , H. OHASHI1, Y. OHYA1, S. YANASE1, S. HASHI1

Affiliation

  1. Department of Materials Science, Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, 501-1192, Japan

Abstract

Magnetic properties related to nano-structure have been investigated for sol-gel grown Co-ferrite thin films on the substrates of glass and SiO2 (100). The magnetic properties depended on the annealing temperature and the coercivity of 7.7 kOe was obtained at 923 K on the SiO2 (100) substrate. The microstructure transformed into columnar from granular at the annealing temperature of 923 K..

Keywords

Co-ferrite, Thin film, Coercivity, So-gel method, Microstructure, Crystallization.

Submitted at: March 13, 2008
Accepted at: May 14, 2008

Citation

Y. OKAZAKI, H. OHASHI, Y. OHYA, S. YANASE, S. HASHI, Columnar co-ferrite films with high coercivity on glass and silica substrate by sol-gel method, Journal of Optoelectronics and Advanced Materials Vol. 10, Iss. 5, pp. 1089-1092 (2008)