题名 |
Induced Chemical Pressure by O Vacancies in (Tb(subscript 1-x)Na(subscript x))MnO(subscript 3-y) |
作者 |
T. S. Chan;R. S. Liu;Y. H. Lien;C. Y. Huang;S. F.Hu;J. M. Chen;J.-F. Lee;M. Karppinen;H. Yamauchi |
关键词 | |
期刊名称 |
Chinese Journal of Physics |
卷期/出版年月 |
45卷2s2期(2007 / 04 / 01) |
页次 |
256 - 262 |
内容语文 |
繁體中文 |
英文摘要 |
The crystal structure and magnetic properties of perovskite-related (Tb(subscript 1-x)Na(subscript x))MnO(subscript 3-y) compounds in the compositional range 0≤x≤0.3 are reported. We found that the effective moments decrease with increasing Na content, which is due to weaken the rare-earth interaction and dilute average rare-earth moment in each unit cell. Moreover, a decrease of unit cell volume with Na-doping is also observed resulting from an increase in the oxygen vacancies. The result is supported by the X-ray absorption near-edge structure (XANES) spectra and the closed-ampoule iodometry technique. |
主题分类 |
基礎與應用科學 >
物理 |
被引用次数 |
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