Figure 1 : The ideal magnetic hysteresis loop of an exchange spring magnet ( dashed ), as well as the hysteresis loops of its isolated hard ( Blue ) and soft ( Red ) components.
32.
As " a " is increased, the hysteresis loops become smaller and smaller, until above 0 } } they disappear altogether ( the cusp catastrophe ), and there is only one stable solution.
33.
:Since magnetic stripes consist of ferromagnetic material and are written with magnetic write heads, it is obvious that a magnet, if strong enough and brought close enpugh can take the magnetic material right around its hysteresis loop.
34.
An adsorption isotherm showing hysteresis is said to be of Type IV ( for a wetting adsorbate ) or Type V ( for a non-wetting adsorbate ), and hysteresis loops themselves are classified according to how symmetric the loop is.
35.
By repeatedly increasing " b " and then decreasing it, one can therefore observe hysteresis loops, as the system alternately follows one solution, jumps to the other, follows the other back, then jumps back to the first.
36.
The magnetic hysteresis loop of an exchange spring magnet theoretically takes on a shape resembling that of a summation of its hard and soft magnetic components ( as seen in Figure 1 ), meaning its " energy product " is higher than those of its components.
37.
The distinguishing feature of ferroelectrics is that the spontaneous polarization can be " reversed " by a suitably strong applied electric field in the opposite direction; the polarization is therefore dependent not only on the current electric field but also on its history, yielding a hysteresis loop.
38.
The area under the curves of the absorption peaks for these two states are going to be proportional to the fraction of HS and LS states in the sample . "'Figure 7 "'shows a plot of the area under the curves of the absorption peaks as a function of temperature for the same iron cluster ( vide supra ), showing a large hysteresis loop.
