scholarly journals From frequency dispersion to ohmic impedance: A new insight on the high-frequency impedance analysis of electrochemical systems

2019 ◽  
Vol 320 ◽  
pp. 134609 ◽  
Author(s):  
Oumaïma Gharbi ◽  
Arthur Dizon ◽  
Mark E. Orazem ◽  
Mai T.T. Tran ◽  
Bernard Tribollet ◽  
...  
Keyword(s):  
High Frequency ◽  
Frequency Dispersion ◽  
Impedance Analysis ◽  
Electrochemical Systems

Magnetic Permeability and Relaxation Frequency in High Frequency Magnetic Materials.

2001 ◽  
Vol 674 ◽  
Author(s):  
M.I. Rosales ◽  
H. Montiel ◽  
R. Valenzuela
Keyword(s):  
High Frequency ◽  
Domain Walls ◽  
Magnetocrystalline Anisotropy ◽  
Low Frequency ◽  
Frequency Dispersion ◽  
Anisotropy Constant ◽  
Relaxation Frequency ◽  
Resonance Relaxation ◽  
Frequency Behavior

ABSTRACTAn investigation of the frequency behavior of polycrystalline ferrites is presented. It is shown that the low frequency dispersion (f < 10 MHz) of permeability is associated with the bulging of pinned domain walls, and has a mixed resonance-relaxation character, closer to the latter. It is also shown that there is a linear relationship between the magnetocrystalline anisotropy constant, K1, and the relaxation frequency. The slope of this correlation depends on the grain size. Such a relationship could allow the determination of this basic parameter from polycrystalline samples.

scholarly journals Hawking spectrum and high frequency dispersion

1996 ◽  
Vol 54 (2) ◽  
pp. 1568-1586 ◽  
Author(s):  
Steven Corley ◽  
Ted Jacobson
Keyword(s):  
High Frequency ◽  
Frequency Dispersion

The ponderomotive force of a high-frequency electromagnetic field in a cold magnetized plasma

1982 ◽  
Vol 27 (2) ◽  
pp. 215-224 ◽  
Author(s):  
V. I. Karpman ◽  
A. G. Shagalov
Keyword(s):  
Electromagnetic Field ◽  
Liquid Medium ◽  
Magnetic Moment ◽  
High Frequency ◽  
Ponderomotive Force ◽  
Frequency Dispersion ◽  
Magnetized Plasma ◽  
Complete Agreement ◽  
Microscopic Approach ◽  
High Frequency Electromagnetic Field

An expression is derived for the ponderomotive force acting in a cold collisionless magnetized plasma in a high-frequency electromagnetic field. Some related topics, such as the magnetic moment and solenoidal currents induced by the HF field are considered. A microscopic approach is used. The results are in complete agreement with the general expression for the ponderomotive force in a liquid medium with frequency dispersion obtained earlier by Washimi & Karpman by means of phenomenological considerations.

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