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Garnet magnetic oxide monocrystal and the production manner and magnetostatic wave component null for magnetostatic wave component
Garnet magnetic oxide monocrystal and the production manner and magnetostatic wave component null for magnetostatic wave component
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机译：石榴石磁性氧化物单晶及其生产方法和静磁波分量为静磁波分量零
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摘要
Proposed is a novel rare earth oxide-based magnetic garnet single crystal in the form of a film epitaxially grown in the crystallographic direction of 111 on the substrate of a rare earth oxide-based garnet single crystal, which is useful as a magnetostatic device such as high-frequency oscillators capable of exhibiting improved temperature characteristics. The magnetic garnet single crystal is characterized by the specific chemical composition of the formula (BixR3-x)(Fe5-yMy)O12, in which R, is a rare earth element selected from the group consisting of Y, Lu, La or a combination thereof, M is Ga, Al or a combination thereof, x is 0.02 to 0.4 and y is 0.6 to 0.8, and also by the specific value of the growth-induced magnetic anisotropy constant Kug in the range from 0.3x104 to 1.5x104 erg/cm3 in the crystallographic 111 direction which can be imparted by an annealing heat treatment at a specified temperature.
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