Approach to the magnetic saturation in nanocrystalline ferromagnets in the random anisotropy model

1998 ◽  
Vol 83 (11) ◽  
pp. 6341-6343 ◽  
Author(s):  
G. R. Aranda ◽  
J. González ◽  
K. Kulakowski
Keyword(s):  
Magnetic Saturation ◽  
Random Anisotropy ◽  
Anisotropy Model ◽  
Nanocrystalline Ferromagnets

scholarly journals Coercivity and Magnetic Anisotropy of (Fe0.76Si0.09B0.10P0.05)97.5Nb2.0Cu0.5 Amorphous and Nanocrystalline Alloy Produced by Gas Atomization Process

Nanomaterials ◽  
2020 ◽  
Vol 10 (5) ◽  
pp. 884
Author(s):  
Kenny L. Alvarez ◽  
José Manuel Martín ◽  
Nerea Burgos ◽  
Mihail Ipatov ◽  
Lourdes Domínguez ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Magnetic Anisotropy ◽  
Structural Relaxation ◽  
Nanocrystalline Structure ◽  
Nanocrystalline Alloy ◽  
Gas Atomization ◽  
Atomization Process ◽  
Random Anisotropy ◽  
Anisotropy Model ◽  
Amorphous Character

We present the evolution of magnetic anisotropy obtained from the magnetization curve of (Fe0.76Si0.09B0.10P0.05)97.5Nb2.0Cu0.5 amorphous and nanocrystalline alloy produced by a gas atomization process. The material obtained by this process is a powder exhibiting amorphous character in the as-atomized state. Heat treatment at 480 °C provokes structural relaxation, while annealing the powder at 530 °C for 30 and 60 min develops a fine nanocrystalline structure. Magnetic anisotropy distribution is explained by considering dipolar effects and the modified random anisotropy model.

Magnons in a Random Anisotropy Model with Mixed Exchange Coupling

1992 ◽  
Vol 170 (1) ◽  
pp. K45-K48
Author(s):  
R. M. Chorbadjian ◽  
J. Pozo
Keyword(s):  
Exchange Coupling ◽  
Random Anisotropy ◽  
Anisotropy Model

Crystallization Process of Fe73.5Cu1Nb3Si13.5B9

1992 ◽  
Vol 286 ◽  
Author(s):  
H. Nakabayasiii ◽  
M. Doi ◽  
M. Matsui ◽  
M. Doyama
Keyword(s):  
Solid Solution ◽  
Crystallization Process ◽  
Volume Fraction ◽  
Magnetic Phase ◽  
Partially Ordered ◽  
Annealing Temperatures ◽  
Random Anisotropy ◽  
Anisotropy Model ◽  
The Relationship ◽  
Maximum Permeability

ABSTRACTTo clarify the relation between high magnetic permeability and magnetic phases of Fe73.5Cu1Nb3Si13.5B9 ribbons, the process of precipitation was investigated by using the Xray diffraction, DTA, VSM and the Mössbauer spectra at various annealing temperatures. The volume fraction of each magnetic phase was estimated. The sample annealed at 853K which shows maximum permeability is composed of partially ordered Fe3Si(70%), Fe(B) solid solution(10%) and amorphous(20%) phases. The relative permeability of the sample annealed below 853K increases with increasing the volume fraction of both of the Fe3Si partially ordered and the Fe(B) solid solution phases. The relationship between tile permeability and the volume fraction is interpreted by the random anisotropy model.

scholarly journals Zero-temperature behavior of the random-anisotropy model in the strong-anisotropy limit

2007 ◽  
Vol 76 (17) ◽  
Author(s):  
Frauke Liers ◽  
Jovanka Lukic ◽  
Enzo Marinari ◽  
Andrea Pelissetto ◽  
Ettore Vicari
Keyword(s):  
Temperature Behavior ◽  
Zero Temperature ◽  
Strong Anisotropy ◽  
Random Anisotropy ◽  
Anisotropy Model

Random anisotropy model approach on ion beam sputtered Co20Cu80 granular alloy

2002 ◽  
Vol 241 (2-3) ◽  
pp. 335-339 ◽  
Author(s):  
H. Errahmani ◽  
N. Hassanaı̈n ◽  
A. Berrada ◽  
M. Abid ◽  
H. Lassri ◽  
...  
Keyword(s):  
Ion Beam ◽  
Random Anisotropy ◽  
Anisotropy Model ◽  
Model Approach

scholarly journals PHASE TRANSITION IN THE RANDOM ANISOTROPY MODEL

2001 ◽  
pp. 457-467 ◽  
Author(s):  
M. DUDKA ◽  
R. FOLK ◽  
YU. HOLOVATCH
Keyword(s):  
Phase Transition ◽  
Random Anisotropy ◽  
Anisotropy Model
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