Tootfinder

Electric-field control of zero-dimensional topological states in ultranarrow germanene nanoribbons
Lumen Eek, Esra D. van 't Westende, Dennis J. Klaassen, Harold J. W. Zandvliet, Pantelis Bampoulis, Cristiane Morais Smith
https://arxiv.org/abs/2506.16158

Electric-field control of zero-dimensional topological states in ultranarrow germanene nanoribbons
Symmetry-protected zero-dimensional (0D) modes, such as corner and end states with fractionalized charge, promise robust qubits and efficient electronics. Yet, reversible, electric-field manipulation and control of these modes has remained elusive. Here, we show theoretically and experimentally electric-field-driven on/off switching of 0D topological end modes in two- and three-hexagon wide germanene nanoribbons in a vertical tunnel junction set-up. We demonstrate the annihilation and restorati…