| 摘要 |
FIELD: physics.SUBSTANCE: magnetooptic material is an epitaxial monocrystalline film of iron garnet of the composition (YBi)(FeGa)O, which is grown on a substrate of nonmagnetic garnet with a high lattice constantThe epitaxial film contains 0.1-0.4 formula units of Mgions. The substrate of nonmagnetic garnet can be made from (GdCa)(GaMgZr)O, or Ca(NbLi)GaO, or Ca(NbMg)GaO, or Ca(NbZr)GaO. The disclosed material has a magnetooptic figure of merit of 56-60 deg/dB at ?=0.8 mcm, 350-380 deg/dB at ?=1.3 mcm, coercitive force of about 2.5-15.3 Oe.EFFECT: obtaining high-contrast images by thermomagnetic recording.2 cl, 2 tbl, 3 dwg, 4 ex |
