Manipulating spin spatial splitter in a delta-doped semiconductor nanostructure with zero average magnetic field

作者：Liu, Gui Xiang^*; Ma, Wen Yue; Shen, Li Hua

来源：Superlattices and Microstructures, 2015, 88: 204-210.

DOI：10.1016/j.spmi.2015.09.011

• Magnetic nanostructure
• The delta-doping
• Lateral displacement
• Controllable spin spatial splitter

Recently, based on a novel magnetic nanostructure with zero average magnetic field, a spin spatial splitter with a considerable spin-polarized lateral displacement was proposed [Appl. Surf. Sci. 313 (2014) 545]. To further manipulate its spin-polarized behaviour, in this work, we introduce a tunable delta-potential into the device by the atomic layer doping, and calculated its effect on spin-polarized lateral displacement of the electron. Both magnitude and sign of spin polarization are found to be sensitive to the delta-doping. Therefore, such a device can serve as a structurally-controllable spin-polarized source for spintronics applications.

• 出版日期2015-12
• 单位邵阳学院