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Title: Compositional dependence of magnetic and high frequency properties of nanogranular FeCo-TiO{sub 2} films

A series of soft magnetic nanogranular FeCo-TiO{sub 2} films with different compositions of FeCo were fabricated on Si substrates by co-sputtering FeCo and TiO{sub 2}, and the magnetic and high frequency properties were studied in details. X-ray diffraction analysis confirmed that the films were nanocrystalline/amorphous composites. A high saturation magnetization of 14 kGs, a low coercivity of 5.3 Oe, a FMR frequency of 3.2 GHz, and a high resistivity of 1068 μΩ cm were obtained when the volume fraction of FeCo was 0.68. The excellence electromagnetic properties make the films an excellent candidate for microwave applications.
Authors:
; ; ;  [1]
  1. State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054 (China)
Publication Date:
OSTI Identifier:
22273904
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Applied Physics; Journal Volume: 115; Journal Issue: 17; Conference: 55. annual conference on magnetism and magnetic materials, Atlanta, GA (United States), 14-18 Nov 2010; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; COBALT; COERCIVE FORCE; CRYSTALS; FERROMAGNETIC RESONANCE; FREQUENCY DEPENDENCE; GHZ RANGE; INTERMETALLIC COMPOUNDS; IRON; MAGNETIZATION; MICROWAVE RADIATION; NANOSTRUCTURES; SPUTTERING; SUBSTRATES; THIN FILMS; TITANIUM OXIDES; X-RAY DIFFRACTION