A new concept of thermomagnetic localized reversible magneto-optic storage is proposed based on the application of compensation wall domains (CWD). Individual CWD's of 12 × 12-μm dimensions in an LPE film of composition Y2.34Gd0.52Yb0.14Fe3.74Ga1.26 O12 with 3-μm thickness have been switched by laser flashes of 10−2 erg/μm2 energy in 5 μs at 5145-Å wavelength using a stationary field of 41 Oe normal to the film plane.
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Krumme et al. (1973) studied this question.
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