| The effects of electric and magnetic fields on the current spin polarization and magnetoresistance in a ferromagnetic/organic semiconductor/ferromagnetic（FM/OSC/FM） system |
| |
| 引用本文： | 王玉梅,任俊峰,原晓波,窦兆涛,胡贵超.The effects of electric and magnetic fields on the current spin polarization and magnetoresistance in a ferromagnetic/organic semiconductor/ferromagnetic（FM/OSC/FM） system[J].中国物理 B,2012,21(10):108508-108508. |
| |
| 作者姓名： | 王玉梅 任俊峰 原晓波 窦兆涛 胡贵超 |
| |
| 作者单位： | College of Physics and Electronics, Shandong Normal University, Jinan 250014, China |
| |
| 基金项目： | Project supported by the National Natural Science Foundation of China （Grant Nos. 10904083 and 10904084）; the Shandong Provincial Distinguished Middle-Aged and Young Scientist Encourage and Reward Foundation,China （Grant No. BS2009CL008）; the Science and Technology Foundation for Institution of Higher Education of Shandong Province,China （Grant No. J09LA03） |
| |
| 摘 要： | From experimental results of spin polarized injection and transport in organic semiconductors(OSCs),we theoretically study the current spin polarization and magnetoresistance under an electric and a magnetic field in a ferromagnetic/organic semiconductor/ferromagnetic(FM/OSC/FM) sandwich structure according to the spin drift-diffusion theory and Ohm’s law.From the calculations,it is found that the interfacial current spin polarization is enhanced by several orders of magnitude through tuning the magnetic and electric fields by taking into account the specific characteristics of OSC.Furthermore,the effects of the electric and magnetic fields on the magnetoresistance are also discussed in the sandwich structure.
|
| 关 键 词： | organic spintronics spin diffusion and drift current spin polarization magnetoresistance |
| 收稿时间： | 2011-12-22 |
The effects of electric and magnetic fields on the current spin polarization and magnetoresistance in a ferromagnetic/organic semiconductor/ferromagnetic (FM/OSC/FM) system |
| |
| Wang Yu-Mei,Ren Jun-Feng,Yuan Xiao-Bo,Dou Zhao-Tao,Hu Gui-Chao.The effects of electric and magnetic fields on the current spin polarization and magnetoresistance in a ferromagnetic/organic semiconductor/ferromagnetic (FM/OSC/FM) system[J].Chinese Physics B,2012,21(10):108508-108508. |
| |
| Authors: | Wang Yu-Mei Ren Jun-Feng Yuan Xiao-Bo Dou Zhao-Tao Hu Gui-Chao |
| |
| Institution: | College of Physics and Electronics, Shandong Normal University, Jinan 250014, China |
| |
| Abstract: | From experimental results of spin polarized injection and transport in organic semiconductors (OSCs), we theoretically study the current spin polarization and magnetoresistance under an electric and a magnetic field in a ferromagnetic/organic semiconductor/ferromagnetic (FM/OSC/FM) sandwich structure according to the spin drift-diffusion theory and Ohm's law. From the calculations, it is found that the interfacial current spin polarization is enhanced by several orders of magnitude through tuning the magnetic and electric fields by taking into account the specific characteristics of OSC. Furthermore, the effects of the electric and magnetic fields on the magnetoresistance are also discussed in the sandwich structure. |
| |
| Keywords: | organic spintronics spin diffusion and drift current spin polarization magnetoresistance |
| 本文献已被 CNKI 维普 等数据库收录！ |
| 点击此处可从《中国物理 B》浏览原始摘要信息 |
| 点击此处可从《中国物理 B》下载免费的PDF全文 |
