Ferromagnetic nature of (ga, cr)as epilayers revealed by magnetic circular dichroism
文献类型：期刊论文
| 作者 | Wu, H.; Gan, H. D.; Zheng, H. Z.; Lu, J.; Zhu, H.; Ji, Y.; Li, G. R.; Zhao, J. H. |
| 刊名 | Solid state communications
 |
| 出版日期 | 2011-03-01 |
| 卷号 | 151期号:6页码:456-459 |
| 关键词 | Magnetic semiconductors Molecular beam epitaxy Magneto-optical effects |
| ISSN号 | 0038-1098 |
| DOI | 10.1016/j.ssc.2010.12.037 |
| 通讯作者 | Zheng, h. z.(hzzheng@red.semi.ac.cn) |
| 英文摘要 | A systematic study of magnetic circular dichroism (mcd) was carried out in a wave length range 500-960 nm for (ga(1-x), cr(x))as epilayers with x = 2.38% and 4.59% grown by the low temperature molecular beam epitaxy (lt-mbe) technique. hysteresis characteristics showed up indeed in the magnetic field dependence of both mcd and magnetization measured by the superconductor quantum interference device (squid). the curie temperature of the (ga(1-x), cr(x))as epilayer was determined to be about 12 k by the arrott approach. the present result provides evidences that there is strong coupling of the cr spins to the gaas host band structure in (ga(1-x), cr(x))as samples. that affects the critical point of the semiconductor host, and makes the magnetization behavior in a plot of m similar to b/t (magnetic field divided by temperature) substantially different from standard superparamagnetism. (c) 2011 elsevier ltd. all rights reserved. |
| WOS关键词 | TRANSPORT-PROPERTIES ; SEMICONDUCTOR ; (GA,CR)AS |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000288041000008 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2428480 |
| 专题 | 半导体研究所 |
| 通讯作者 | Zheng, H. Z. |
| 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 | Wu, H.,Gan, H. D.,Zheng, H. Z.,et al. Ferromagnetic nature of (ga, cr)as epilayers revealed by magnetic circular dichroism[J]. Solid state communications,2011,151(6):456-459. |
| APA | Wu, H..,Gan, H. D..,Zheng, H. Z..,Lu, J..,Zhu, H..,...&Zhao, J. H..(2011).Ferromagnetic nature of (ga, cr)as epilayers revealed by magnetic circular dichroism.Solid state communications,151(6),456-459. |
| MLA | Wu, H.,et al."Ferromagnetic nature of (ga, cr)as epilayers revealed by magnetic circular dichroism".Solid state communications 151.6(2011):456-459. |
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来源：半导体研究所
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