Anisotropy of magnetic properties in ferrimagnetic ytterbium iron garnet under high magnetic fields | |
Wang W ; Yue Y ; Li DY | |
刊名 | journal of applied physics |
2009 | |
卷号 | 105期号:8页码:art. no. 083909 |
关键词 | crystal field interactions garnets magnetic anisotropy spontaneous magnetisation superexchange interactions ytterbium compounds |
ISSN号 | 0021-8979 |
通讯作者 | wang w beijing univ chem technol dept phys & elect sch sci beijing 100029 peoples r china. e-mail address: wangwei@mail.buct.edu.cn |
中文摘要 | the magnetic anisotropy in ytterbium iron garnet (ybig) is theoretically investigated under high magnetic fields (up to 160 koe). according to the crystal field effect in ytterbium gallium garnet (ybgag), a detailed discussion of crystal-field interaction in ybig is presented where a suitable set of crystal-field parameters is obtained. meanwhile, the influences of nine crystal-field parameters on the crystal-field energy splitting are analyzed. on the other hand, considering the ytterbium-iron (yb-fe) superexchange interaction of ybig, the spontaneous magnetization is calculated at different temperatures for the [111] direction. in particular, we demonstrate that the wesis constant lambda is the function of 1/t in ybig. in addition, the field dependences of the magnetization for the [110] and [111] directions are theoretically described where a noticeable anisotropy can be found. our theory further confirms the great contribution of anisotropic yb-fe superexchange interaction to the anisotropy of the magnetization in ybig. moreover, our theoretical results are compared with the available experiments. |
学科主题 | 半导体物理 |
收录类别 | SCI |
资助信息 | beijing university of chemical technology qn0724 state key laboratory of integrated optoelectronics institute of semiconductors chinese academy of sciences. |
语种 | 英语 |
公开日期 | 2010-03-08 |
内容类型 | 期刊论文 |
源URL | [http://ir.semi.ac.cn/handle/172111/7079] |
专题 | 半导体研究所_中国科学院半导体研究所(2009年前) |
推荐引用方式 GB/T 7714 | Wang W,Yue Y,Li DY. Anisotropy of magnetic properties in ferrimagnetic ytterbium iron garnet under high magnetic fields[J]. journal of applied physics,2009,105(8):art. no. 083909. |
APA | Wang W,Yue Y,&Li DY.(2009).Anisotropy of magnetic properties in ferrimagnetic ytterbium iron garnet under high magnetic fields.journal of applied physics,105(8),art. no. 083909. |
MLA | Wang W,et al."Anisotropy of magnetic properties in ferrimagnetic ytterbium iron garnet under high magnetic fields".journal of applied physics 105.8(2009):art. no. 083909. |
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