Structure, magnetization, and low-temperature spin dynamic behavior of zincblende mn-rich mn(ga)as nanoclusters embedded in gaas
文献类型：期刊论文
| 作者 | Wang, W. Z.; Deng, J. J.; Lu, J.; Sun, B. Q.; Wu, X. G.; Zhao, J. H. |
| 刊名 | Journal of applied physics
 |
| 出版日期 | 2009-03-01 |
| 卷号 | 105期号:5页码:6 |
| 关键词 | Annealing Curie temperature Ferromagnetic materials Gallium arsenide Iii-v semiconductors Magnetic susceptibility Magnetisation Manganese compounds Nanofabrication Nanostructured materials Rkky interaction Semiconductor thin films Semimagnetic semiconductors Spin dynamics |
| ISSN号 | 0021-8979 |
| DOI | 10.1063/1.3080246 |
| 通讯作者 | Zhao, j. h.(jhzhao@red.semi.ac.cn) |
| 英文摘要 | We have fabricated a set of samples of zincblende mn-rich mn(ga)as clusters embedded in gaas matrices by annealing (ga,mn)as films with different nominal mn content at 650 degrees c. for the samples with mn content no more than 4.5%, the curie temperature reaches nearly 360 k. however, when mn content is higher than 5.4%, the samples exhibit a spin-glass-like behavior. we suggest that these different magnetic properties are caused by the competing result of dipolar and ruderman-kittel-kasuya-yosida interaction among clusters. the low-temperature spin dynamic behavior, especially the relaxation effect, shows the extreme creeping effect which is reflected by the time constant tau of similar to 10(11) s at 10 k. we explain this phenomenon by the hierarchical model based on the mean-field approach. we also explain the memory effect by the relationship between the correlation function and the susceptibility. |
| WOS关键词 | MAGNETISM ; GLASSES ; PHASE ; SEMICONDUCTORS ; (GA,MN)AS ; RELAXATION ; FIELD ; MN)AS ; (GA |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Applied |
| 语种 | 英语 |
| WOS记录号 | WOS:000264156300067 |
| 出版者 | AMER INST PHYSICS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2427662 |
| 专题 | 半导体研究所 |
| 通讯作者 | Zhao, J. H. |
| 作者单位 | Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, Beijing 100083, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, W. Z.,Deng, J. J.,Lu, J.,et al. Structure, magnetization, and low-temperature spin dynamic behavior of zincblende mn-rich mn(ga)as nanoclusters embedded in gaas[J]. Journal of applied physics,2009,105(5):6. |
| APA | Wang, W. Z.,Deng, J. J.,Lu, J.,Sun, B. Q.,Wu, X. G.,&Zhao, J. H..(2009).Structure, magnetization, and low-temperature spin dynamic behavior of zincblende mn-rich mn(ga)as nanoclusters embedded in gaas.Journal of applied physics,105(5),6. |
| MLA | Wang, W. Z.,et al."Structure, magnetization, and low-temperature spin dynamic behavior of zincblende mn-rich mn(ga)as nanoclusters embedded in gaas".Journal of applied physics 105.5(2009):6. |
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来源：半导体研究所
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