Structure and magnetic property of (Ga,Cr)As films with different Cr contents
文献类型：期刊论文
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| 作者 | Lu J (Lu J.); Meng HJ (Meng H. J.); Zhu K (Zhu K.); Chen L (Chen L.); Xu PF (Xu P. F.); Xie Z (Xie Z.); Zhao JH (Zhao J. H.); Lu, J, Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, POB 912, Beijing 100083, Peoples R China. 电子邮箱地址: jhzhao@red.semi.ac.cn |
| 刊名 | epl
 ; EPL
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| 出版日期 | 2010 ; 2010 |
| 卷号 | 89期号:6页码:art. no. 67003 |
| 关键词 | SPIN-GLASSES Spin-glasses |
| 通讯作者 | lu, j, chinese acad sci, inst semicond, state key lab superlattices & microstruct, pob 912, beijing 100083, peoples r china. 电子邮箱地址: jhzhao@red.semi.ac.cn |
| 合作状况 | 国内 |
| 英文摘要 | we report variations in structure and magnetic property of (ga,cr) as films with increasing cr content x. due to phase segregation, a tendency towards inhomogeneous distribution with increasing x is confirmed. barkhausen-like magnetization and large remanent magnetic moment were also clearly observed in the samples with x<5.3%. however, spin-glass-like behaviors were observed in both dc and ac magnetic measurements, which might originate from the competition between magnetic nucleation and frustration of long ferromagnetic order in this inhomogeneous system. all the samples exhibit characteristics of variable-range hopping conductivity at temperature below 150 k. typical magnetic circular dichroism structure was observed in the sample with x=7.9%.; We report variations in structure and magnetic property of (Ga,Cr) As films with increasing Cr content x. Due to phase segregation, a tendency towards inhomogeneous distribution with increasing x is confirmed. Barkhausen-like magnetization and large remanent magnetic moment were also clearly observed in the samples with x<5.3%. However, spin-glass-like behaviors were observed in both dc and ac magnetic measurements, which might originate from the competition between magnetic nucleation and frustration of long ferromagnetic order in this inhomogeneous system. All the samples exhibit characteristics of variable-range hopping conductivity at temperature below 150 K. Typical magnetic circular dichroism structure was observed in the sample with x=7.9%.; submitted by 阎军 (yanj@red.semi.ac.cn) on 2010-07-18t13:33:29z no. of bitstreams: 0; submitted by 阎军 (yanj@red.semi.ac.cn) on 2010-07-18t13:33:29z no. of bitstreams: 0; the authors acknowledge prof. t. dietl for helpful discussions on the physics of inhomogeneous diluted magnetic semiconductors. this work was supported partly by the national natural science foundation of china under grant nos. 60836002 and 10674130, and the special funds for the major state basic research contract no. 2007cb924903 of china, and the knowledge innovation program project of chinese academy of sciences no. kjcx2.yw.w09-1.; 国内 |
| 学科主题 | 半导体物理 ; 半导体物理 |
| 收录类别 | SCI |
| 资助信息 | the authors acknowledge prof. t. dietl for helpful discussions on the physics of inhomogeneous diluted magnetic semiconductors. this work was supported partly by the national natural science foundation of china under grant nos. 60836002 and 10674130, and the special funds for the major state basic research contract no. 2007cb924903 of china, and the knowledge innovation program project of chinese academy of sciences no. kjcx2.yw.w09-1. |
| 语种 | 英语 ; 英语 |
| 资助机构 | The authors acknowledge Prof. T. DIETL for helpful discussions on the physics of inhomogeneous diluted magnetic semiconductors. This work was supported partly by the National Natural Science Foundation of China under Grant Nos. 60836002 and 10674130, and the special funds for the Major State Basic Research Contract No. 2007CB924903 of China, and the Knowledge Innovation Program Project of Chinese Academy of Sciences No. KJCX2.YW.W09-1. |
| 公开日期 | 2010-07-18 ; 2010-07-18 ; 2010-10-15 |
| 源URL | [http://ir.semi.ac.cn/handle/172111/11366]  |
| 专题 | 半导体研究所_半导体超晶格国家重点实验室 |
| 通讯作者 | Lu, J, Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, POB 912, Beijing 100083, Peoples R China. 电子邮箱地址: jhzhao@red.semi.ac.cn |
| 推荐引用方式 GB/T 7714 | Lu J ,Meng HJ ,Zhu K ,et al. Structure and magnetic property of (Ga,Cr)As films with different Cr contents, Structure and magnetic property of (Ga,Cr)As films with different Cr contents[J]. epl, EPL,2010, 2010,89, 89(6):art. no. 67003, Art. No. 67003. |
| APA | Lu J .,Meng HJ .,Zhu K .,Chen L .,Xu PF .,...&Lu, J, Chinese Acad Sci, Inst Semicond, State Key Lab Superlattices & Microstruct, POB 912, Beijing 100083, Peoples R China. 电子邮箱地址: jhzhao@red.semi.ac.cn.(2010).Structure and magnetic property of (Ga,Cr)As films with different Cr contents.epl,89(6),art. no. 67003. |
| MLA | Lu J ,et al."Structure and magnetic property of (Ga,Cr)As films with different Cr contents".epl 89.6(2010):art. no. 67003. |
入库方式： OAI收割
来源：半导体研究所
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