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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >Growth and characterization of Bi, Pr and Bi, Sc-substituted lutetium iron garnet films with planar magnetization for magneto-optic visualization
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Growth and characterization of Bi, Pr and Bi, Sc-substituted lutetium iron garnet films with planar magnetization for magneto-optic visualization

机译：具有平面磁化作用的Bi，Pr和Bi，Sc取代的planar铁石榴石薄膜的生长和表征，用于磁光可视化

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摘要

The series of epitaxial garnet films of general composition Lu3-x-yBixPryFe5-zAlzO12 and Lu3-xBixFe5-y-zScyAlzO12 were grown on (111) oriented GGG (gadolinium gallium garnet) substrates by the liquid phase epitaxy, Their magnetic and magneto-optical properties were studied using both experimental techniques and modelling. All obtained films demonstrated generally a magnetic anisotropy close to the easy-plane type. The Pr-containing films exhibited large negative uniaxial anisotropy and significant cubic anisotropy. The latter causes a distortion of magnetization curves in samples magnetized in a direction normal to the film plane, especially at low temperatures. The large negative uniaxial anisotropy of Pr-substituted iron garnets allows us to increase the saturation field up to 0.5 T at liquid nitrogen temperature. The Sc-doped films displayed small positive uniaxial anisotropy that did not exceed the shape anisotropy, The magnetization curves of these films did not show any distortion due to the cubic anisotropy, The suitability of Pr- and Sc-doped garnets that meet the requirements for indicator layers for magneto-optic visualization at liquid nitrogen temperature is discussed. [References: 38]
机译：通过液相外延在（111）取向的GGG（ga镓石榴石）衬底上生长出一般成分为Lu3-x-yBixPryFe5-zAlzO12和Lu3-xBixFe5-y-zScyAlzO12的一系列外延石榴石膜，其磁性和磁光使用实验技术和模型研究了其性能。所有获得的膜通常表现出接近于易平面型的磁各向异性。含Pr的膜表现出大的负单轴各向异性和显着的立方各向异性。后者导致在垂直于薄膜平面的方向上磁化的样品中的磁化曲线变形，尤其是在低温下。 Pr取代的铁石榴石的大负单轴各向异性使我们在液氮温度下将饱和场提高到0.5T。掺Sc的薄膜表现出小的正单轴各向异性，不超过形状各向异性;这些薄膜的磁化曲线没有显示出由于立方各向异性而引起的任何畸变。掺Pr和Sc的石榴石的适用性满足讨论了在液氮温度下用于磁光可视化的指示层。 [参考：38]

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