Crystalline anisotropy of cobalt ferrite from observations of ferromagnetic resonance

1976 ◽  
Author(s):  
L. Assadourian ◽  
L. Silber
Keyword(s):  
Ferromagnetic Resonance ◽  
Cobalt Ferrite ◽  
Crystalline Anisotropy

Ferromagnetic Resonance in Cobalt Ferrite at High Temperature

1951 ◽  
Vol 84 (2) ◽  
pp. 372-372 ◽  
Author(s):  
Tosihiko Okamura ◽  
Yosiharu Torizuka ◽  
Yuzo Kojima
Keyword(s):  
High Temperature ◽  
Ferromagnetic Resonance ◽  
Cobalt Ferrite

MICROSTRUCTURAL CHANGES UPON ANNEALING AND IT'S EFFECT ON MAGNETIC AND MECHANICAL PROPERTIES OF NANOSIZED COBALT–FERRITE

2012 ◽  
Vol 11 (01) ◽  
pp. 1250005 ◽  
Author(s):  
CHANDAN BORGOHAIN ◽  
KULA KAMAL SENAPATI ◽  
DEBABRATA MISHRA ◽  
ALAGARSAMY PERUMAL ◽  
KANAK CHANDRA SARMA ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Cobalt Ferrite ◽  
Annealing Temperature ◽  
X Ray Diffraction ◽  
Pure Cobalt ◽  
Transmission Electron ◽  
Stress Strain Relation ◽  
Crystalline Anisotropy ◽  
Different Temperatures ◽  
Transmission Electron Microscope Analysis

Nanocrystalline cobalt–ferrite particles of size 20–30 nm have been prepared by a reverse coprecipitation technique under the assistance of ultrasonic irradiation and heat-treatment at different temperatures (from 473 K to 1073 K). Both X-ray diffraction and transmission electron microscope analysis confirms the reduction of strain present in the material with annealing temperature. Enhancement of coercivity and magnetization value has been observed without increase in the particle size for whole range of annealing temperature. Temperature dependent magnetization loop shows considerable magnetic hardening at low temperature. The observed enhancement of the coercivity value has been attributed to the increase in magneto-crystalline anisotropy, surface effects and exchange anisotropy. The mechanical properties of the pure cobalt–ferrite samples and cobalt–ferrite reinforced alumina samples were also examined. The Vickers microhardness and the compressive properties obtained from the stress–strain relation showed higher value with annealing temperatures and higher nanoparticle content.

Ferromagnetic resonance and plasma effects in metals

1967 ◽  
Vol 92 (8) ◽  
pp. 583-619 ◽  
Author(s):  
A.Ya. Blank ◽  
M.I. Kaganov
Keyword(s):  
Ferromagnetic Resonance ◽  
Plasma Effects

Relaxation at Nonlinear Ferromagnetic Resonance

2014 ◽  
Vol 59 (2) ◽  
pp. 141-147 ◽  
Author(s):  
A.Yu. Vidil ◽  
◽  
I.V. Zavislyak ◽  
M.O. Popov ◽  
◽  
...  
Keyword(s):  
Ferromagnetic Resonance
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