Issue |
EPL
Volume 143, Number 2, July 2023
|
|
---|---|---|
Article Number | 26005 | |
Number of page(s) | 6 | |
Section | Condensed matter and materials physics | |
DOI | https://doi.org/10.1209/0295-5075/ace54d | |
Published online | 24 July 2023 |
Order amidst disorder for two-dimensional nanoribbons with various boundary conditions
1 Department of Physics and Astronomy, Mississippi State University - Mississippi State, MS 39762-5167, USA
2 HPC Center for Computational Sciences, Mississippi State University - Mississippi State, MS 39762-9627, USA 2
3 Department of Condensed Matter Physics, Faculty of Mathematics and Physics, Charles University - Ke Karlovu 5, CZ-121 16 Prague, Czech Republic
(a) E-mail: man40@msstate.edu (corresponding author)
Received: 22 March 2023
Accepted: 7 July 2023
We show quantum systems with disordered Hamiltonians may exhibit order in commonly measured quantities. This counter-intuitive situation is demonstrated using a conventional tight binding model for two-dimensional nanoribbons with various boundary conditions. The analysis uses the traditional non-equilibrium Green's function (NEGF) methodology for electron transport. We study quantum dragon nanodevices that exhibit order amidst disorder. Each disordered Hamiltonian nanodevice shows order in both the bond currents and the local density of states (LDOS) of the propagating electrons.
© 2023 The author(s)
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