7.1.1.4.2 Magnetic aging, aftereffect, magnetomechanical damping

2005 ◽  
pp. 21-29
Author(s):  
G. Bertotti ◽  
F. Fiorillo
Keyword(s):  
Magnetic Aging

Magnetic aging of electric sheet coated with an electrical insulator

1974 ◽  
Vol 16 (10) ◽  
pp. 870-871
Author(s):  
N. T. Omel'yanenko ◽  
E. A. Prokopchenko
Keyword(s):  
Electrical Insulator ◽  
Magnetic Aging ◽  
Electric Sheet

Magnetic Aging Effect Losses on Electrical Steels

2016 ◽  
Vol 52 (5) ◽  
pp. 1-4 ◽  
Author(s):  
G. M. R. Negri ◽  
N. Sadowski ◽  
N. J. Batistela ◽  
J. V. Leite ◽  
J. P. A. Bastos
Keyword(s):  
Aging Effect ◽  
Electrical Steels ◽  
Magnetic Aging

A study of the kinetics of magnetic aging in steels

1981 ◽  
Vol 17 (6) ◽  
pp. 2881-2883 ◽  
Author(s):  
S. Ray ◽  
S. Mishra ◽  
O. Mohanty
Keyword(s):  
Magnetic Aging ◽  
Kinetics Of

Magnetic aging of electric sheet

1975 ◽  
Vol 17 (4) ◽  
pp. 317-319
Author(s):  
L. I. Gvozdeva ◽  
K. F. Losev ◽  
L. P. Kamysheva ◽  
L. P. Parsheva
Keyword(s):  
Magnetic Aging ◽  
Electric Sheet

Magnetic Aging

2005 ◽  
Vol 887 ◽  
Author(s):  
R. Skomski ◽  
J. Zhou ◽  
R. D. Kirby ◽  
D. J. Sellmyer
Keyword(s):  
Free Energy ◽  
Power Law ◽  
Magnetization Reversal ◽  
Eddy Currents ◽  
Scientific Research ◽  
Magnetization Dynamics ◽  
Energy Barriers ◽  
Thermally Activated ◽  
Magnetic Aging ◽  
Magnetization Processes

ABSTRACTThermally activated magnetization reversal is of great importance in areas such as permanent magnetism and magnetic recording. In spite of many decades of scientific research, the phenomenon of slow magnetization dynamics has remained partially controversial. It is now well-established that the main mechanism is thermally activated magnetization reversal, as contrasted to eddy currents and structural aging, but the identification of the involved energy barriers remains a challenge for many systems. Thermally activated slow magnetization processes proceed over energy barriers whose structure is determined by the micromagnetic free energy. This restricts the range of physically meaningful energy barriers. An analysis of the underlying micromagnetic free energy yields power-law dependences with exponents of 3/2 or 2 for physically reasonable models, in contrast to arbitrary exponents m and to 1/H-type laws.

Magnetic aging and non-equilibrium dynamics in Y0.7Ca0.3MnO3

2001 ◽  
Vol 226-230 ◽  
pp. 1335-1337 ◽  
Author(s):  
D.N.H. Nam ◽  
R. Mathieu ◽  
P. Nordblad ◽  
N.V. Khiem ◽  
N.X. Phuc
Keyword(s):  
Equilibrium Dynamics ◽  
Magnetic Aging ◽  
Non Equilibrium

Magnetic Properties of Amorphous Fe2O3-R2O3 (R=La, Gd and Tb) Thin Films Fabricated by Sputtering Method

2008 ◽  
Vol 39-40 ◽  
pp. 207-212 ◽  
Author(s):  
Hirofumi Akamatsu ◽  
Shunsuke Murai ◽  
Koji Fujita ◽  
Katsuhisa Tanaka
Keyword(s):  
Thin Films ◽  
Magnetic Properties ◽  
Spin Glasses ◽  
Magnetic Moments ◽  
Rare Earth Ions ◽  
Aging Effects ◽  
Glass Substrates ◽  
Radio Frequency Sputtering ◽  
Magnetic Aging ◽  
Temperature Dependences

Amorphous oxide thin films of Fe2O3-R2O3 (R = La, Gd and Tb) systems have been deposited on silica glass substrates by using a radio frequency sputtering method, and magnetic properties of the thin films have been examined. The Fe2O3-La2O3 thin films exhibit cusp-like maxima of dc magnetic susceptibility in their temperature dependences as well as magnetic aging and memory effects characteristic of typical spin glasses. For Fe2O3-Gd2O3 and Fe2O3-Tb2O3 systems, magnetic moments of iron ions take part in formation of a spin glass state, as indicated by the magnetic aging effects, while those of rare-earth ions remain to be in a paramagnetic state even at very low temperatures.

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