| 报告题目 | New insights of spin pumping from linear response approach |
| 报告人 | Prof. S. F. Zhang |
| 报告人单位 | University of Arizona, USA |
| 报告时间 | 2014-07-10 |
| 报告地点 | 合肥微尺度物质科学国家实验室一楼科技展厅 |
| 主办单位 | 合肥微尺度物质科学国家实验室 |
| 报告介绍 | 报告摘要：
Spin pumping has become one of the most important phenomena in spintronics. Yet, the theoretical work on the spin pumping remains limited to the original framework of the scattering approach which is more suitable for mesoscopic transport. For a disordered system, a natural approach is to utilize the linear response theory in which we reformulate the spin pump current in terms of spectral density functions. We believe that this work will immediately impact the field of spintronics since many experimental results on spin pumping should be re-evaluated within our new formalism. In addition, our theory predicts a spin pumping current inside the processing magnetic layers in which the scattering theory fails to predict. Finally, we present a coherent explanation to recent experimental data. |
