Oxide garnet single crystal

摘要

A novel rare earth-based oxide garnet single crystal suitable as a material of the elements in a magneto-optical device to exhibit a greatly decreased light absorption loss is proposed, which is prepared by the liquid epitaxial growth method on a oxide garnet single crystal wafer and having a chemical composition represented by the general formula $in\; which\; M\; is\; an\; element\; or\; a\; combination\; of\; elements\; selected\; from\; the\; group\; consisting\; of\; aluminum,\; scandium,\; gallium\; and\; indium,\; the\; subscript\; a\; is\; a\; positive\; number\; in\; the\; range\; from\; 1.1\; to\; 2.1,\; the\; subscript\; b\; is\; a\; positive\; number\; in\; the\; range\; from\; 0.1\; to\; 0.9,\; the\; subscript\; c\; is\; 0\; or\; a\; positive\; number\; not\; exceeding\; 0.5\; and\; the\; subscript\; d\; is\; zero\; or\; a\; positive\; number\; not\; exceeding\; 0.6\; or,\; in\; particular,\; in\; the\; range\; from\; 0.03\; to\; 0.6\; with\; the\; proviso\; that\; 3-a-b-d\; is\; in\; the\; range\; from\; 0.7\; to\; 1.2.$