The effects of geometry on the hosting of Majorana zero modes are explored in core-shell nanowires with a hexagonal core and a triangular shell, and vice versa. The energy interval separating electronic states localized in the corners from states localized on the sides of the shell is shown to be larger for a triangular nanowire with a hexagonal core, than a triangular one. We build the topological phase diagram for both cases and compare them to earlier work on prismatic nanowires with the same core and shell geometry. We suggest that a dual core nanowire is needed to allow for a braiding operation of Majorana zero modes at the nanowire end plane.
@article{arxiv.2004.14991,
title = {Majorana Zero Modes in Nanowires with Combined Triangular and Hexagonal Geometry},
author = {Kristjan Ottar Klausen and Anna Sitek and Sigurdur I. Erlingsson and Andrei Manolescu},
journal= {arXiv preprint arXiv:2004.14991},
year = {2020}
}