Published December 2007 | Version v1
Journal article Metadata-only

High-frequency ferromagnetic properties of FeCoZr nanocrystalline films

Creators

  • 1. Center for Nanotechnology, Materials Science, and Microsystems, National Tsing Hua University, Hsinchu 30013 (China)
  • 2. Department of Physics, Fujian Normal University, Fuzhou 35007 (China)
  • 3. Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 30013 (China)
  • 4. Department of Electrical and Communication Engineering, Graduate School of Engineering, Tohoku University, Sendai 980-8577 (Japan)

Description

FeCoZr magnetic thin films with high uni-axial anisotropy were fabricated by RF co-sputtering followed by post magnetic annealing. The crystal size of FeCoZr films was less than 15 nm, as calculated by Scherrer equation from X-ray diffraction patterns. By adding Zr element, FeCoZr films exhibited a uni-axial anisotropy after magnetic field annealing at 400 C for 1 hr. Optimal high frequency ferromagnetic properties were achieved in film with 19 at.% Zr, in which strong uni-axial anisotropy field of 300 Oe and high ferromagnetic resonance frequency in excess of 5.2 GHz were obtained. These facts suggest that FeCoZr nano-crystalline film is a potential candidate in high frequency electromagnetic devices operating at GHz bands. (copyright 2008 WILEY-VCH Verlag GmbH and Co. KGaA, Weinheim) (orig.)

Availability note (English)

Available from: http://dx.doi.org/10.1002/pssc.200777345

Additional details

Identifiers

DOI
10.1002/pssc.200777345;

Publishing Information

Journal Title
Physica Status Solidi. C, Conferences
Journal Volume
4
Journal Issue
12
Journal Page Range
p. 4593-4597
ISSN
1610-1634

Conference

Title
International symposium on advanced magnetic materials and applications (ISAMMA 2007)
Dates
28 May - 1 Jun 2007
Place
Jeju (Korea, Republic of)

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
39023999
Subject category
S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ANISOTROPY; ANNEALING; COBALT ALLOYS; CRYSTALS; DEPOSITION; EIGENFREQUENCY; FERROMAGNETIC MATERIALS; FERROMAGNETIC RESONANCE; IRON ALLOYS; MAGNETIC FIELDS; MAGNETIC SUSCEPTIBILITY; MAGNETIZATION; NANOSTRUCTURES; PARTICLE SIZE; SPUTTERING; TEMPERATURE RANGE 0400-1000 K; TERNARY ALLOY SYSTEMS; THIN FILMS; X-RAY DIFFRACTION; ZIRCONIUM ALLOYS
Descriptors DEC
ALLOY SYSTEMS; ALLOYS; COHERENT SCATTERING; DIFFRACTION; FILMS; HEAT TREATMENTS; MAGNETIC MATERIALS; MAGNETIC PROPERTIES; MAGNETIC RESONANCE; MATERIALS; PHYSICAL PROPERTIES; RESONANCE; SCATTERING; SIZE; TEMPERATURE RANGE; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
With 3 figs., 1 tab., 13 refs.. SICI: 1610-1634(200712)4:12<4593::AID-PSSC200777345>3.0.TX;2-5