Spatial Selected Spin Filtering Effect in Z-Shaped MoS₂ Nanoribbon

• Main Authors: Yi-Hao Ma, Liang-Hao Ruan, Jing Wang, Wen-Sheng Zhao, Yue Hu, Yuhua Cheng, Da-Wei Wang, Gaofeng Wang
• Format: Article
• Language: English
• Published: IEEE 2021-01-01
• Series: IEEE Access
• Subjects: Spin filtering effect; MoS₂ nanoribbon; spintronic device
• Online Access: https://ieeexplore.ieee.org/document/9497047/
• ISSN: 2169-3536

Due to the gapless between any two successive subbands with the same spin, the spin polarization in uniform MoS₂ zigzag nanoribbon (MoS₂-ZR) is weak. Here, through configuring Z-shaped structure, we realize 100% spin polarization in MoS₂-ZR with only exchange field. The filtered spin electrons transmit along a specified edge of the device. This phenomenon is the result of the combined effect of the localized edge states and structure induced inversion of the Mo-edge and S-edge. In our calculation the fully spin polarization appears in several energy regions, so this Z-shaped MoS₂-ZRs can be used in making spintronic devices.