Kong JT, Yan ZX, Song W, Li WL, X Y, Xu WY, Cheng Q, Li DX. Emergent Majorana zero-modes in an intrinsic anti-ferromagnetic topological superconductor Mn
2B
2 monolayer.
Phys Chem Chem Phys 2023;
25:6963-6969. [PMID:
36807355 DOI:
10.1039/d2cp05523f]
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Abstract
Topological superconductors (TSCs) are an exotic field due to the existence of Majorana zero-modes (MZM) in the edge states that obey non-Abelian statistics and can be used to implement topological quantum computations, especially for two-dimensional (2D) materials. Here we predict manganese diboride (Mn2B2) as an intrinsic 2D anti-ferromagnetic (AFM) TSC based on the magnetic and electronic structures of Mn and B atoms. Once Mn2B2 ML enters a superconducting state, MZM will be induced by the spin-polarized helical gapless edge states. The Z2 topological non-trivial properties are confirmed by Wannier charge centers (WCC) and the platform of the spin Hall conductivity near the Fermi level. Phonon-electron coupling (EPC) implies s-wave superconductivity and the critical temperature (Tc) is 6.79 K.
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