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    Two-Dimensional Lattices of VN: Emergence of Ferromagnetism and Half-Metallicity on Nanoscale

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    DOI:
    10.1021/acs.jpclett.7b03276
    URI (for links/citations):
    https://pubs.acs.org/doi/abs/10.1021/acs.jpclett.7b03276
    http://elib.sfu-kras.ru/handle/2311/110906
    Author:
    Artem, V Kuklin
    Svetlana, A Shostak
    Alexander, A Kuzubov
    Corporate Contributor:
    Научно-исследовательская часть
    Date:
    2018-03
    Journal Name:
    Journal of Physical Chemistry Letters
    Journal Quartile in Scopus:
    Q1
    Journal Quartile in Web of Science:
    Q1
    Bibliographic Citation:
    Artem, V Kuklin. Two-Dimensional Lattices of VN: Emergence of Ferromagnetism and Half-Metallicity on Nanoscale [Текст] / V Kuklin Artem, A Shostak Svetlana, A Kuzubov Alexander // Journal of Physical Chemistry Letters. — 2018. — Т. 9 (№ 6). — С. 1422-1428

    Текст статьи не публикуется в открытом доступе в соответствии с политикой журнала.

    Abstract:
    Two-dimensional (2D) ferromagnets with high spin-polarization ratio and high Curie temperature are crucial for developing next-generation spintronic nanodevices. Using first-principles calculations, we predict two polymorphic modifications (t-VN and h-VN) of 2D VN lattices that have robust intrinsic ferromagnetic properties and high Curie temperatures. Whereas t-VN has 99.9% of spin polarization at the Fermi level, h-VN possesses a half-metallic type of conductivity and keeps it after contact with semiconducting MoS2, which can be used as the substrate for h-VN synthesis and valley polarized contacts. Magnetocrystalline anisotropy energy of 2D VN polymorphs is found to be at least an order larger than those of Fe and Ni bulks. The phonon spectra and ab initio molecular dynamic simulation prove that 2D VN lattices have a high thermodynamic stability. These advantages demonstrate that the VN monolayers should be promising candidates for low-dimensional spintronic devices.
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