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arXiv · 1605.04141

Electronic properties of germanene nanoribbons in external fields

M. H. Lee·J. Y. Wu·S. C. Chen·C. W. Chiu·M. F. Lin
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Abstract

Germanene nanoribbons, with buckled structures, exhibit unique electronic properties. The complicated relations among the quantum confinement, the spin-orbital coupling, the magnetic quantization, the electric-field dominated quantum numbers, energy dispersions, energy gap, state degeneracy, and wave functions. Such mechanisms can diversify spatial charge distributions and spin configurations on distinct sublattices. There exist the spin-split quasi-Landau levels and the valley-dependent asymmetric energy spectrum in a composite electric and magnetic field, manly owing to the destruction of z=0 mirror symmetry. The rich electronic structures are revealed in density of states as a lot of special structures. The predicted results could be directly verified by the scanning tunneling spectroscopy.

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M. H. Lee, J. Y. Wu, S. C. Chen, C. W. Chiu, M. F. Lin. 2016-09-22. Electronic properties of germanene nanoribbons in external fields. https://arxiv.org/abs/1605.04141

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