Giant magnetic moment in an anomalous ferromagnetic insulator: co-doped zno
文献类型：期刊论文
| 作者 | Song, C; Geng, KW; Zeng, F; Wang, XB; Shen, YX; Pan, F; Xie, YN; Liu, T; Zhou, HT; Fan, Z |
| 刊名 | Physical review b
 |
| 出版日期 | 2006 |
| 卷号 | 73期号:2页码:6 |
| ISSN号 | 1098-0121 |
| DOI | 10.1103/physrevb.73.024405 |
| 通讯作者 | Pan, f(panf@mail.tsinghua.edu.cn) |
| 英文摘要 | Ferromagnetic insulators that exhibit strong ferromagnetism at the atomic level are believed to be suitable for magnetic dielectric barriers in spintronic devices and solid-state qubits in quantum computing. here a giant magnetic moment of 6.1 mu(b)/co and a high curie temperature t-c of 790 k are observed in (4 at. %) co-doped zno films, which is not carrier mediated, but co-exists with the dielectric state. direct current reactive magnetron co-sputtering is used to grow zn0.96co0.04o dilute magnetic insulator on linbo3 (104) substrates at considerably low growth temperature (similar to 200 degrees c), which is significant for complementary metal oxide semiconductor technology. x-ray photoelectron spectroscopy and x-ray-absorption spectroscopy reveal a solid solution of cobalt in zno, where co is in the 2+ state substituting for zn. a supercoupling mechanism in terms of bound magnetic polarons is proposed to discuss the ferromagnetism in the dielectric ground state of co:zno, which would lead to different consideration for the origin of giant magnetic moment and high-temperature ferromagnetism in transition-metal doped oxides. |
| WOS关键词 | SNO2 THIN-FILMS ; ROOM-TEMPERATURE ; SEMICONDUCTORS ; TRANSITION ; OXIDES |
| WOS研究方向 | Physics |
| WOS类目 | Physics, Condensed Matter |
| 语种 | 英语 |
| WOS记录号 | WOS:000235009300055 |
| 出版者 | AMERICAN PHYSICAL SOC |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2175833 |
| 专题 | 高能物理研究所 |
| 通讯作者 | Pan, F |
| 作者单位 | 1.Tsing Hua Univ, Dept Mat Sci & Engn, Adv Mat Lab, Beijing 100084, Peoples R China 2.Chinese Acad Sci, BSRF, Beijing 100039, Peoples R China |
| 推荐引用方式 GB/T 7714 | Song, C,Geng, KW,Zeng, F,et al. Giant magnetic moment in an anomalous ferromagnetic insulator: co-doped zno[J]. Physical review b,2006,73(2):6. |
| APA | Song, C.,Geng, KW.,Zeng, F.,Wang, XB.,Shen, YX.,...&Fan, Z.(2006).Giant magnetic moment in an anomalous ferromagnetic insulator: co-doped zno.Physical review b,73(2),6. |
| MLA | Song, C,et al."Giant magnetic moment in an anomalous ferromagnetic insulator: co-doped zno".Physical review b 73.2(2006):6. |
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来源：高能物理研究所
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