1. Rich magnetic phase transitions and completely dual-spin polarization of zigzag PC3 nanoribbons under uniaxial strain.
- Author
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Ni, Hui-Min, He, Jing-Jing, Guo, Fang-Wen, Dong, Jia-Bei, Lu, Tian-Yi, Cui, Wen-Dou, Yuan, Jia-Ren, Guo, Yan-Dong, and Yan, Xiao-Hong
- Abstract
Among many modulation methods, strain engineering is often chosen for nanomaterials to produce tunable band gaps continuously. Inspired by the recently reported two-dimensional material PC
3 , we explore the tuning of strain on the spin-dependent transport properties of PC3 nanoribbons using the first-principle approach. Surprisingly, strain regulation achieves uninterrupted completely dual-spin polarization over a wide energy range near EF . Analysis reveals that the peculiar transmission spectra arise from the interesting evolution of the band structure, in which strain induces bands to shift and broaden/flatten. This results in triggering the transition of PC3 NRs from bandgap-tunable bipolar magnetic semiconductors to spin-gapless semiconductors to ferromagnetic metals or half-metal magnets. Their unique performance demonstrates great potential in spintronics, and our study is expected to provide ideas and theoretical support for the design and application of novel PC3 -based spintronic devices in the future. [ABSTRACT FROM AUTHOR]- Published
- 2023
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