4.6 Article

One-dimensional quantum channel in bent honeycomb nanoribbons

期刊

PHYSICAL CHEMISTRY CHEMICAL PHYSICS
卷 24, 期 16, 页码 9316-9323

出版社

ROYAL SOC CHEMISTRY
DOI: 10.1039/d2cp00468b

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资金

  1. Hebei Normal University [L2022B08]
  2. National Natural Science Foundation of China [12174084]
  3. Scientific and Technological Research Foundation of Hebei Province [ZD2021065]
  4. Key Program of Natural Science Foundation of Hebei Province [A2021205024]

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We propose a method to construct a one-dimensional quantum channel through in-plane bending deformation, which is of great importance for the application of two-dimensional materials. We find that bending-induced pseudo-magnetic fields lead to the localization of electronic states along both edges of bent nanoribbons, forming robust one-dimensional quantum channels. These findings provide new inspiration for the realization of transverse magnetic focusing under zero magnetic fields and pave the way for the design of nano-devices based on two-dimensional materials through strain engineering.
The directionality of steering charge carriers is of great importance for the application of two-dimensional (2D) materials. Using the generalized Bloch theorem coupled with the self-consistent charge density-functional tight-binding method, we theoretically propose an approach to construct a one-dimensional (1D) quantum channel in honeycomb nanoribbons (NR) via in-plane bending deformation. Bending-induced pseudo-magnetic fields lead to Landau quantization and localize the electronic states along both edges of bent NR. These localized states form robust 1D quantum channels, whose energies can be linearly modulated through the bending angle. Our findings give new inspiration for the realization of transverse magnetic focusing (TMF) under zero magnetic fields and pave the way for the design of 2D material-based nano-devices via strain-engineering.

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