Magnetization dynamics

Several assumptions have been made in this description of the magnetization dynamics of chain systems ... 

The performance of the field-switching circuitry (power supply and magnet dynamics) affects the minimum duration of the switching intervals. Figure 20 illustrates the principal characteristics of the field-switching... 

If we follow the reversible switching peak to very large I and H, the dwell times Tp and Tp extrapolate to values smaller than any plausible microscopic attempt time. At that point the magnetization dynamics no longer produce telegraph... 

Such a replacement reduces all the magnetic dynamics to the interwell transition, ignoring all the intrawell motions. For this reason, the blocking... 

MAGNETIC DYNAMICS OF Co NANOSPHERES ORIGIN OF THE ENHANCED ANISOTROPY... 

Keywords nanoparticles, magnetic anisotropy, orbital moment, size effects, superparamagnetism, magnetic dynamics. 

Magnetic dynamics of Co nanospheres origin of the enhanced anisotropy... 

Nano-technology problems were addressed in talks by J. Bartolome (Magnetic dynamics of Co nanospheres) and J. Kliava (Nanoparticles in oxide glasses). 

This chapter investigates how intrinsic and extrinsic properties are affected by nanostructuring. Emphasis is on model calculations and analytical approximations, as contrasted to Chapter 2 by Kashyap et al. which focuses on numerical calculations, and Ch. 4 by Schrefl et al., where emphasis is on micromagnetic models and simulations. Section 2 is devoted to static properties, whereas section 3 is concerned with magnetization dynamics. Finally, section 4 presents a number of case studies. 

Figure 12. Magnetization dynamics of a nanoparticle (a) damped precession and (b) random...

The magnetization dynamics of ferrofluids is characterized by the distinction between Brownian and Neel relaxations. Brownian relaxation refers to the mechanical rotation... 

There has been a considerable effort in the physics and chemistry communities to use INS methods to study magnetic dynamics, which can often be described as spin waves. Measurements of spin wave dispersion curves can provide information about the interactions between atomic magnetic moments, the so-called exchange interactions. There have been comparatively few INS measurements on magnetic minerals. INS methods have been used to produce spin wave dispersion curves for hematite. Crystal field magnetic transitions in cobalt bearing cordierite, and spinel phases have also been studied by INS. ... 

ULTRAFAST MAGNETIZATION DYNAMICS OF THIN Au/Fe FILMS NONLINEAR OPTICS STUDIES... 

Ultrafast magnetization dynamics of thin Au/Fe films nonlinear optics studies. 

Valenzuela, R. Irvine, J. T. S. (1992). Effects of thermal annealing on the magnetization dynamics of vitrovac amorphous ribbons. Journal of Applied Physics, 72, 1486-9. 

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