DocumentCode :
68618
Title :
Nanogranular (FeCoTiO/SiO2)n Multilayered Films for Noise Suppressor
Author :
Yicheng Wang ; Huaiwu Zhang ; Luo Wang ; Zhiyong Zhong ; Feiming Bai
Author_Institution :
State Key Lab. of Electron. Thin Films & Integrated Devices, Univ. of Electron. Sci. & Technol., Chengdu, China
Volume :
50
Issue :
11
fYear :
2014
fDate :
Nov. 2014
Firstpage :
1
Lastpage :
4
Abstract :
Magnetic nanogranular FeCoTiO films have been deposited by radio frequency magnetron cosputtering. By simply adjusting the thickness of films, the imaginary permeability spectrum of FeCoTiO films changed from a single ferromagnetic resonance peak to double resonance peaks. Based on this phenomenon, multilayered [FeCoTiO/SiO2(50 nm)]n films with various thickness of FeCoTiO layer were deposited and the characteristics of the electromagnetic noise suppression have been evaluated using an integrated coplanar waveguide transmission line. The multilayered film shows a decoupled M-H curve and a very wide resonance peak with the full-width at half-maximum of 2.6 GHz. The absorption attenuation amplitude reaches to -8 dB at the resonance frequency, and is better than -6 dB for the frequency above 3 GHz.
Keywords :
cobalt compounds; coplanar transmission lines; coplanar waveguides; ferromagnetic materials; ferromagnetic resonance; granular materials; iron compounds; magnetic multilayers; magnetic noise; magnetic permeability; magnetic thin films; nanostructured materials; silicon compounds; sputter deposition; FeCoTiO-SiO2; absorption attenuation amplitude; decoupled M-H curve; double resonance peaks; electromagnetic noise suppression; film thickness; imaginary permeability spectrum; integrated coplanar waveguide transmission line; magnetic nanogranular films; nanogranular multilayered films; radio frequency magnetron cosputtering; single ferromagnetic resonance; size 50 nm; Magnetic multilayers; Magnetic resonance; Magnetic resonance imaging; Noise; Permeability; Perpendicular magnetic anisotropy; Coplanar waveguide (CPW); electromagnetic interference; ferromagnetic resonance (FMR); nanogranular films;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2014.2326868
Filename :
6971379
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=68618
بازگشت