e/Photomagnetism

Information
has gloss	eng: The photomagnetic effect is the effect in which a material acquires (and in some cases loses) its ferromagnetic properties in response to light. The current model for this phenomenon is a light induced electron transfer, accompanied by the reversal of the spin direction of an electron. This leads to an increase in spin concentration, causing the magnetic transition. Currently the effect is only observed to persist (for any significant time) at very low temperature. But at temperatures such at 5K, the effect may persist for several days. . The photomagnetic effect is found to be repeatable i.e. the material can be magnetised, then demagnetised (either by applying the relevant wavelength or by heating above the critical temperature) then remagnetised without any measurable change between...
lexicalization	eng: Photomagnetism
instance of	(noun) (physics) a device that attracts iron and produces a magnetic field magnet

Media
media:img	Photomagnetism diagram.JPG