https://scholars.lib.ntu.edu.tw/handle/123456789/443508
標題: | Curie temperatures of Y<inf>3</inf>Fe<inf>5</inf>O<inf>12</inf>/Gd<inf>3</inf>Fe<inf>5</inf>O <inf>12</inf> superlattices | 作者: | MING-YAU CHERN Lee, W.S. Liou, D.R. |
關鍵字: | Curie temperature; Gadolinium gallium garnet; Kerr effect; Magneto-optical; Shift exponent; Yttrium iron garnet | 公開日期: | 1997 | 卷: | 170 | 期: | 3 | 起(迄)頁: | L243-L247 | 來源出版物: | Journal of Magnetism and Magnetic Materials | 摘要: | The magneto-optical Kerr effects (MOKE) of epitaxial Y3Fe5O12Gd3Ga5O 12 (YIG/GGG) garnet superlattices grown on (1 1 1)GGG previously by pulsed laser deposition (PLD) were measured. A series of superlattices were investigated with the thickness of the ferrimagnetic YIG layer varied from six unit cells to only one unit cell while keeping the Curie paramagnetic GGG fixed at one unit cell. It was demonstrated that the ellipsometric technique employing photoelastic modulators (PEM) is sensitive enough to measure the MOKE signals of these ultrathin oxide samples. The Curie temperatures, determined by MOKE, are fit with a power law, yielding a shift exponent λ = 3.1 ± 1.2. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/443508 https://www.scopus.com/inward/record.uri?eid=2-s2.0-0031168598&doi=10.1016%2fS0304-8853%2897%2900070-X&partnerID=40&md5=7e68eea0b7395c917a50d43ff1fbabc1 |
ISSN: | 03048853 | DOI: | 10.1016/S0304-8853(97)00070-X | SDG/關鍵字: | Deposition; Ellipsometry; Epitaxial growth; Ferrimagnetic materials; Garnets; Kerr magnetooptical effect; Metallic superlattices; Oxides; Photoelasticity; Pulsed laser applications; Curie temperatures; Gadolinium gallium garnet (GGG); Photoelastic modulators (PEM); Yttrium iron garnet (YIG); Magnetic thin films |
顯示於: | 物理學系 |
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