Permeability of CoNbZr amorphous thin films over a wide frequency range
Journal Article
·
· IEEE Trans. Magn.; (United States)
CoNbZr amorphous films have attracted the attention of many researchers because of their high saturation magnetization, high permeability, low coercivity, and nearly zero magnetostriction. For these films to be used, one of the important magnetic properties is the behavior of the permeability over a wide frequency range. We have measured the permeability of a square-shaped magnetic film (13 mm x 55 mm) sputtered on a glass substrate from 1 MHz to 400 MHz using a stripline. Over 400 MHz, the permeability of the magnetic film was measured using a ring-shaped sample mounted in a coaxial fixture. The wall motion permeability of CoNbZr amorphous films decreases from 1 kHz to nearly zero at 1 MHz. The rotation permeability is constant to 100 MHz and ferromagnetic resonance is observed near 1 GHz.
- Research Organization:
- Osaka Univ. (JP)
- OSTI ID:
- 5028766
- Journal Information:
- IEEE Trans. Magn.; (United States), Journal Name: IEEE Trans. Magn.; (United States) Vol. TJMJ-2:9; ISSN IEMGA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
36 MATERIALS SCIENCE
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
AMORPHOUS STATE
BLOCH WALL
COBALT ALLOYS
COERCIVE FORCE
DOMAIN STRUCTURE
FERROMAGNETIC RESONANCE
FILMS
FREQUENCY RANGE
GLASS
KHZ RANGE
KHZ RANGE 01-100
KHZ RANGE 100-1000
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
MAGNETIZATION
MAGNETOSTRICTION
MHZ RANGE
MHZ RANGE 01-100
MHZ RANGE 100-1000
MOTION
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
RESONANCE
SATURATION
SPUTTERING
THIN FILMS
ZIRCONIUM ALLOYS
360104* -- Metals & Alloys-- Physical Properties
ALLOYS
AMORPHOUS STATE
BLOCH WALL
COBALT ALLOYS
COERCIVE FORCE
DOMAIN STRUCTURE
FERROMAGNETIC RESONANCE
FILMS
FREQUENCY RANGE
GLASS
KHZ RANGE
KHZ RANGE 01-100
KHZ RANGE 100-1000
MAGNETIC PROPERTIES
MAGNETIC RESONANCE
MAGNETIZATION
MAGNETOSTRICTION
MHZ RANGE
MHZ RANGE 01-100
MHZ RANGE 100-1000
MOTION
NIOBIUM ALLOYS
PHYSICAL PROPERTIES
RESONANCE
SATURATION
SPUTTERING
THIN FILMS
ZIRCONIUM ALLOYS