from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. The process of removing the magnetic field from an object.
from the GNU version of the Collaborative International Dictionary of English
- n. the act or process of removing magnetization.
from The Century Dictionary and Cyclopedia
- n. The act or process of depriving of magnetic polarity.
- n. In mesmerism, the act of restoring a person in the mesmeric trance to a normal state of consciousness; demesmerization.
- n. Also spelled demagnetisation.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the process of removing magnetization
Giauque, who extended the temperature range experimentally accessible by introducing the method of adiabatic demagnetization in 1933.
I might add, with regard to the adiabatic demagnetization, I found a better way to get the data rather than having to push below 12 mK off the end of my dilution refrigerator.
The adiabatic demagnetization technique actually interfered with measurements and destroyed what I was trying to see.
What cleared it up for me was when I got into the technique of adiabatic demagnetization in my low temperature superconductivity work while trying to characterize delicate networks of percolating superconductivity taking place throughout a background of nearly constant resistivity.
At the same time, the low temperature group at the University of Florida also discovered these resonances, but because we cooled our samples by adiabatic nuclear demagnetization of copper rather than Pomeranchuk cooling, only we were able to form and study single crystals, and could thus identify the allowed magnetic domain orientations.
In the meantime, let us here remember that orthodox scientists do use the technique of adiabatic demagnetization to achieve supercooling to very low temperatures.
Cooling by adiabatic demagnetization is well established in physics.
Investigation of the effect of magnetic fields on the entropies of paramagnetic substances led to the invention of the adiabatic demagnetization method of producing temperatures considerably below 1° absolute.
When this motor is supplied by a continuous current, it is easy to understand that the induced current which passes through the shunt circuit, and which is caused by the demagnetization, is proportional to the mass of iron and wire of which the machine is composed, or proportional to its inductive capacity.
The insulating strips in the commutator are sufficiently wide to demagnetize the whole of the machine before reversibility in the armature takes place, and this demagnetization sets up a _direct_ induced current, which is caught in a shunt circuit by the aid of a second commutator, which only comes into action when the first commutator goes out.