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Half metal phase in the zigzag phosphorene nanoribbon
Yi Ren1, Fang Cheng2, Z H Zhang1
1Department of Physics and Electronic Science, Changsha University of Science and Technology, Changsha, 410004, China.
Scientific Reports
|February 15, 2018
Summary
Edge functionalization and oxidation of zigzag phosphorene nanoribbons (ZPNRs) can create half-metallic properties. This half-metallicity in ZPNRs is tunable with electric fields, offering potential for spintronic devices.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Nanotechnology
Background:
- Black phosphorene, a 2D material, exhibits unique anisotropic electronic properties and high carrier mobility.
- Half-metallic nanostructures are essential for advancing high-performance spintronic devices.
- Zigzag phosphorene nanoribbons (ZPNRs) are promising candidates for spintronic applications.
Purpose of the Study:
- To investigate the electronic and magnetic properties of functionalized ZPNRs.
- To explore the impact of edge functionalization and oxidation on ZPNR properties.
- To determine the controllability of half-metallicity in ZPNRs.
Main Methods:
- First-principles calculations were employed to study ZPNRs.
- Investigated zigzag phosphorene nanoribbons with OH/CN, OH/NO2, and NH2/NO2 edge functionalizations.
- Analyzed the effects of edge oxidation and external electric fields.
Main Results:
- The interplay of edge functionalization and oxidation induces a half-metallic phase in ZPNRs.
- The half-metallic phase is controllable via external transverse in-plane electric fields.
- The proportion of functional groups and edge oxidation influences the half-metallic properties.
Conclusions:
- Edge engineering of ZPNRs offers a pathway to achieving half-metallicity.
- Tunable half-metallicity in ZPNRs is feasible through controlled functionalization and electric fields.
- These findings provide a foundation for designing novel nanoscale spintronic devices based on phosphorene nanoribbons.
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