Space-charge trap mediated conductance blockade in tunnel junctions with half-metallic electrodes
文献类型：期刊论文
| 作者 | Feng, JF ; Kim, TH ; Han, XF ; Zhang, XG ; Wang, Y ; Zou, J ; Yu, DB ; Yan, H ; Li, AP |
| 刊名 | APPLIED PHYSICS LETTERS
 |
| 出版日期 | 2008 |
| 卷号 | 93期号:19 |
| 关键词 | COULOMB-BLOCKADE MAGNETORESISTANCE REGIME SRTIO3 |
| ISSN号 | 0003-6951 |
| 通讯作者 | Li, AP (reprint author), Oak Ridge Natl Lab, Ctr Nanophase Mat Sci, Oak Ridge, TN 37831 USA. |
| 中文摘要 | Our measured dielectric constant and mechanical response of multiferroic BiFeO(3) indicate four phase transitions below room temperature. Features correlate with those reported at 50 K (from a peak in the zero-field-cooled magnetic susceptibility) and 230 K (from splitting between field-cooled and zero-field-cooled magnetic data; Singh et al 2008 Phys. Rev. B 77 144403), and those at 140 and 200 K (from the magnon light scattering cross section; Singh et al 2008 J. Phys.: Condens. Matter 20 25203). The primary order parameter is not the polarization in any of the low-T transitions. Instead, the transition near 200 K shows strong elastic coupling, while that at 50 K is fundamentally magnetic, but magnetostrictively coupled to the lattice. The low-T phase transitions display glassy behaviour. A further anomaly at 140 K interpreted as spin reorientation (Singh et al 2008 J. Phys.: Condens. Matter 20 25203; Cazayous et al 2008 Phys. Rev. Lett. 101 37601) shows only weakly in dielectric and mechanical studies, indicating that it is predominantly magnetic with little coupling to any of the other order parameters. |
| 收录类别 | SCI |
| 资助信息 | Center for Nanophase Materials Sciences; Oak Ridge National Laboratory by the Division of Scientific User Facilities, U.S. Department of Energy; State Key Project of Fundamental Research, Ministry of Science and Technology [2006CB932200]; Chinese National Natural Science Foundation [10574156, 50528101, 50721001] |
| 语种 | 英语 |
| 公开日期 | 2013-09-24 |
| 源URL | [http://ir.iphy.ac.cn/handle/311004/52795]  |
| 专题 | 物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文 |
| 推荐引用方式 GB/T 7714 | Feng, JF,Kim, TH,Han, XF,et al. Space-charge trap mediated conductance blockade in tunnel junctions with half-metallic electrodes[J]. APPLIED PHYSICS LETTERS,2008,93(19). |
| APA | Feng, JF.,Kim, TH.,Han, XF.,Zhang, XG.,Wang, Y.,...&Li, AP.(2008).Space-charge trap mediated conductance blockade in tunnel junctions with half-metallic electrodes.APPLIED PHYSICS LETTERS,93(19). |
| MLA | Feng, JF,et al."Space-charge trap mediated conductance blockade in tunnel junctions with half-metallic electrodes".APPLIED PHYSICS LETTERS 93.19(2008). |
入库方式： OAI收割
来源：物理研究所
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