Magnetic changes

Figure 6 Scanning Karr image of the magnetization changes in the indirection for a thin-film head having a 1-MHz, 5-mA p-p coil current, and the magnetic domain pattern deduced for this head from the observed domain wall motion. ...

The pressure sensitivity of the magnetic properties of the Invar alloys is indicated by extensive measurements of the coefficient of saturation magnetization change with pressure M dMJdP for various compositions as shown in Fig. 5.10. The exceedingly large values in the 30%-40% Ni range are evident and much in excess of the values for iron and nickel. The 30-wt% Ni composition in the fee phase is the most sensitive to pressure, whereas this... 

Fig. 5.16. The relative, shock-induced magnetization change is determined at a given pressure by the ratio of peak current to that at full magnetization change. Various sensitivities with pressure are indicated in agreement with static high pressure data. Offsets at zero magnetization change are typical and may be due to magnetic or mechanical effects (after Edwards [90E01]).

In formulating quantum electrodynamics (QED), it has been found convenient to introduce the electromagnetic interaction with charged particles via the potentials instead of the fields. Consider a particle of charge q traveling on some path P from i to 2. Then the magnetic change in phase of the wavefunction is just... 

Magnetic materials used for memory storage are neither hard nor extremely soft. They must be soft enough to have their direction of magnetization changed by... 

Thus, this calculation of the magnitude of the field, induced at the site by a single ion, and its dependence on distance explain the experimental observation of the jump-like magnetization changes at h = h and h = hi. As a result of the first phase transition, the reversed spins form a close-packed structure with a period ro 10 7cm. 

To understand these new building blocks, we need to look in detail at the motion of the net magnetization vector during a delay as it precesses in the x-y plane. This motion is called evolution because the net magnetization changes with time or evolves as it... 

Figure 4 Back and forth electron transfer induced by photons of different wavelengths through a molecular CN bridge, and the related magnetic changes [37],...

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