Electron-Spin Filter Based on Dresselhaus Spin-Orbit-Coupling Modulated Single-Layered Semiconductor Nanostructure

作者：Lu, Ke-Yu; He, Ya-Ping; He, Zhi-Yi^*; Zu, Mi-Mi; Lu, Mao-Wang^*

来源：IEEE Transactions on Electron Devices, 2023, 70(3): 1401-1405.

DOI：10.1109/TED.2023.3239838

• Effective mass
• Strain
• Spintronics
• Wave functions
• Tunneling
• Stars
• Semiconductor nanostructures
• Controllable electron-spin filter
• single-layered semiconductor nanostructure (SLSN)
• spin polarization
• spin-orbit coupling (SOC)

We theoretically investigate Dresselhaus spin-orbit coupling (SOC)-induced spin-polarized transport for electrons tunneling through single-layered semiconductor nanostructure (SLSN, InSb). A considerable electron-spin polarization is observed in this SLSN. Spin polarization ratio is associated with the electron energy and in-plane wave vector; in particular, it can be manipulated by the strain engineering or the layer thickness. Based on this SLSN, a controllable electron-spin filter is proposed for spintronics device applications.

• 单位
  桂林电子科技大学; 桂林理工大学