High-frequency magnetic properties of Zn ferrite films deposited by magnetron sputtering

Journal Article · Mon Feb 15 00:00:00 EST 2010 · Journal of Applied Physics

DOI:https://doi.org/10.1063/1.3304837· OSTI ID:21476146

Dangwei, Guo; Jingyi, Zhu; Yuancai, Yang; Xiaolong, Fan; Guozhi, Chai; Wenbo, Sui; Zhengmei, Zhang; Desheng, Xue ^[1]

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1. Key Laboratory for Magnetism and Magnetic Materials of the Ministry of Education, Lanzhou University, Lanzhou 730000 (China)

The effect of thermal annealing on structural and magnetic properties has been investigated for Zn ferrite films deposited on Si (111) substrates using radio frequency magnetron sputtering. The saturation magnetization at room temperature was enhanced upto 303 emu/cm{sup 3} by annealing at relatively low temperature of 200 deg. C and decreased at higher temperatures. The complex permeability {mu}={mu}{sup '}-i{mu}{sup ''} values of the ferrite films as-deposited and annealed at 200 and 400 deg. C were measured at frequency upto 5 GHz. These films exhibited better high-frequency properties, especially, the film annealed at 200 deg. C had a large {mu}{sup '} of 19.5 and high resonance frequency f{sub r} of 1.61 GHz. And the reason was investigated preliminarily based on the bianisotropy model.

• OSTI ID: 21476146
• Journal Information: Journal of Applied Physics, Vol. 107, Issue 4; Other Information: DOI: 10.1063/1.3304837; (c) 2010 American Institute of Physics; ISSN 0021-8979
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ANNEALING
CRYSTAL STRUCTURE
DEPOSITION
FERRITES
GHZ RANGE
MAGNETIC SUSCEPTIBILITY
MAGNETIZATION
RADIOWAVE RADIATION
SILICON
SPUTTERING
SUBSTRATES
TEMPERATURE DEPENDENCE
THIN FILMS
ZINC COMPOUNDS
ELECTROMAGNETIC RADIATION
ELEMENTS
FERRIMAGNETIC MATERIALS
FILMS
FREQUENCY RANGE
HEAT TREATMENTS
IRON COMPOUNDS
MAGNETIC MATERIALS
MAGNETIC PROPERTIES
MATERIALS
OXYGEN COMPOUNDS
PHYSICAL PROPERTIES
RADIATIONS
SEMIMETALS
TRANSITION ELEMENT COMPOUNDS