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While pulling up the garnet monocrystal, due to the rearing manner and the garnet substrate null pulling up modulo
While pulling up the garnet monocrystal, due to the rearing manner and the garnet substrate null pulling up modulo
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机译:在上吊石榴石单晶时,由于饲养方式和石榴石基材的空上模模
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摘要
PROBLEM TO BE SOLVED: To provide a growing method whereby the occurrence of cracks at the shoulder part of a garnet single crystal, especially a large-sized single crystal, is suppressed and the propagation of cracks from the shoulder part to the body is prevented when the shoulder part is cut off from the body; a garnet single crystal yielded thereby and with little strain; and a non-magnetic garnet substrate using the single crystal and used for a liquid-phase epitaxial growth method.;SOLUTION: In the growing method, a garnet single crystal represented by the composition formula: A3B5O12 (wherein A is at least one kind of element selected from among rare earth elements and Ca; and B is at least one of Mg and Zr) is grown from a seed crystal by a pulling method while a pulled crystal is being rotated. In growing the shoulder part of the single crystal, the shape of the shoulder part is controlled so that a curve expressing the crystal diameter of the shoulder part as a function of growth distance has at least two inflection points; and the number of revolutions of the crystal is increased after the inflection points.;COPYRIGHT: (C)2005,JPO&NCIPI
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