Rare-Earth-Dependent Tri-axial Magnetic Anisotropies and Growth Conditions in REBa2Cu4O8
Rare-Earth-Dependent Tri-axial Magnetic Anisotropies and Growth Conditions in REBa2Cu4O8
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REBa2Cu4O8 中稀土相关的三轴磁各向异性和生长条件
DOI：
10.1143/jjap.51.010107
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发表时间：
2011
影响因子：
1.5
通讯作者：
J. Shimoyama
中科院分区：
文献类型：
--
作者：
M. Yamaki;S. Horii;M. Haruta;J. Shimoyama
在不同的REBa2Cu4O8(RE124；RE，稀土元素)化合物中，证实了在调制旋转磁场下的三轴取向和常压下单晶的生长。成功地生长了RE=Y，Sm，Eu，Gd，Dy，Ho和Er的RE124晶体。RE124的最佳生长温度区域很大程度上取决于稀土的类型，并且在较轻的稀土离子的情况下变窄。在10T磁流变条件下，所有生长的RE124粉末在室温下在环氧树脂中呈三轴取向，其取向轴明显依赖于RE124中稀土离子的类型。此外，从三种不同磁流变条件下取向程度的变化可以看出，在由Cu-O网络和Re3+离子产生的磁各向异性中，重稀土离子的三轴单离子磁各向异性最大。在稀土基铜酸盐超导体中选择适当的稀土离子，可以降低基于磁取向技术生产块体和厚膜所需的磁场。
Tri-axial orientation under modulated rotation magnetic fields (MRFs) and the growth of single crystals in ambient pressure were demonstrated in various REBa2Cu4O8 (RE124; RE, rare earth elements) compounds. RE124 crystals have been successfully grown for RE = Y, Sm, Eu, Gd, Dy, Ho, and Er. Optimal growth temperature regions for RE124 largely depended on the type of RE and became narrower in the case of lighter RE ions. By applying an MRF of 10 T, powders of all the grown RE124 were tri-axially oriented in epoxy resin at room temperature, and their orientation axes were clearly dependent on the type of RE ions in RE124. Furthermore, it was found from the changes in the degree of orientation under three different MRF conditions that tri-axial single-ion magnetic anisotropies of heavy RE3+ ions were highest among magnetic anisotropies generated by Cu–O networks and RE3+ ions. The appropriate choice of RE ions in RE-based cuprate superconductors enables the reduction of the magnetic field required for the production of bulk and thick films based on the magnetic orientation technique.
影响因子：
5.5
作者：
Tohru S. Suzuki;T. Uchikoshi;Y. Sakka
通讯作者：
Tohru S. Suzuki;T. Uchikoshi;Y. Sakka
高磁场下电泳沉积法制备晶粒取向厚膜热电氧化物
DOI：
--
发表时间：
2006
期刊：
Proc.of 6^<th> Pacific RIM Conference on Ceramic and Glass Technology (CD-ROM)
影响因子：
--
作者：
T.Okamoto;S.Horii;T. Uchikoshi;T.S. Suzuki;Y. Sakka;R. Funahashi;N. Ando;J. Shimoyama and K. Kishio;T.Okamoto
通讯作者：
T.Okamoto