Ferromagnetism controlled by electric field in tilted phosphorene nanoribbon

Study on phosphorene nanoribbon was mostly focused on zigzag and armchair structures and no ferromagnetic ground state was observed in these systems. Here, we investigated the magnetic property of tilted black phosphorene nanoribbons (TPNRs) affected by an external electric field. We also studied th...

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Bibliographic Details
Published in:Scientific reports 2016-05, Vol.6 (1), p.26300-26300, Article 26300
Main Authors: Farooq, M. Umar, Hashmi, Arqum, Hong, Jisang
Format: Article
Language:English
Subjects:
639/301/357/997
639/766/119/997
Electric fields
Helium
Humanities and Social Sciences
Magnetic properties
Magnetism
multidisciplinary
Oxygen
Science
Science (multidisciplinary)
Thermal stability
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Summary:Study on phosphorene nanoribbon was mostly focused on zigzag and armchair structures and no ferromagnetic ground state was observed in these systems. Here, we investigated the magnetic property of tilted black phosphorene nanoribbons (TPNRs) affected by an external electric field. We also studied the edge passivation effect on the magnetism and thermal stability of the nanoribbons. The pure TPNR displayed an edge magnetic state, but it disappeared in the edge reconstructed TPNR due to the self-passivation. In addition, we found that the bare TPNR was mechanically unstable because an imaginary vibration mode was obtained. However, the imaginary vibration mode disappeared in the edge passivated TPNRs. No edge magnetism was observed in hydrogen and fluorine passivated TPRNs. In contrast, the oxygen passivated TPNR was more stable than the pure TPNR and the edge-to-edge antiferromagntic (AFM) ground state was obtained. We found that the magnetic ground state could be tuned by the electric field from antiferromagnetic (AFM) to ferromagnetic (FM) ground state. Interestingly, the oxygen passivated TPNR displayed a half-metallic state at a proper electric field in both FM and AFM states. This finding may provoke an intriguing issue for potential spintronics application using the phosphorene nanoribbons.
ISSN:2045-2322
2045-2322
DOI:10.1038/srep26300