@conference{
author = "Topalović, Dušan and Arsoski, V. V. and Tadić, M. Ž. and Radenković, M. and Božović, Predrag and Peeters, F. M.",
year = "2021",
abstract = "HgTe is a II-VI compound semi-metal with inverted band ordering, low effective mass and high electron mobility [1]. Nanostructures based on this compound are intensively studied due to their specific topological properties [2]. In HgTe based nanostructures an inversion in the band ordering is accompanied by a quantum phase transition from a normal insulator to the phase of a nontrivial twodimensional (2D) topological insulator or the Quantum Spin Hall insulator [3]. A good dynamic stability of HgTe monolayer is predicted from first-principles methods [4], which opened the possibility to use this material in thin-layer electronic devices. Even before these theoretical findings, HgTe nanoribbons have been experimentally realized [5], and a topological field effect quantum transistor was proposed [6]. We investigate the electronic and transport properties of low-buckled 2D HgTe zig-zag and armchair nanoribbons. Modeling of electronic states was performed by using a single-particle tight-binding model in the nearest-neighbour approximation [7]. The sp3d 5 s * basis set in the Slater-Koster notation was used. The spin-orbit interaction was included in the model by using the Chadi formalism [8]. We found specific edge states in the range of energies that define the fundamental band gap of 2D HgTe monolayer. Moreover, we show that the electronic and transport properties of these states depend strongly on nanoribbon width and type of edge, and we demonstrate how external fields can be employed to control them.",
publisher = "Belgrade : Institute of Physics Belgrade",
journal = "PHOTONICA2021 : 8th International School and Conference on Photonics and HEMMAGINERO workshop : Abstracts of Tutorial, Keynote, Invited Lectures, Progress Reports and Contributed Papers; August 23-27, 2021; Belgrade",
title = "Influence of boundary conditions on electronic and transport properties in monolayer low – buckled HgTe nanoribbons",
pages = "77",
url = "https://hdl.handle.net/21.15107/rcub_vinar_10903"
}