3 papers
cond-mat.mes-hall2025
Moiré band theory for M-valley twisted transition metal dichalcogenides
Chao Lei, Perry T. Mahon, Allan H. MacDonald
We propose twisted bilayers of certain group IV and IVB trigonal transition metal dichalcogenides (TMDs) MX (MZr, Hf, Sn and XS, Se) as moiré materials. In monolayer f…
cond-mat.mes-hall2024
Capacitive scheme to detect the topological magnetoelectric effect
Chao Lei, Perry T. Mahon, C. M. Canali +1
The topological magnetoelectric effect (TME) is a defining property of three-dimensional topological insulators that was predicted on theoretical grounds more than…
cond-mat.mes-hall2024
Bulk versus surface: Nonuniversal partitioning of the topological magnetoelectric effect
Chao Lei, Perry T. Mahon, Allan H. MacDonald
The electronic ground state of a three-dimensional (3D) band insulator with time-reversal () symmetry or time-reversal times a discrete translation () symmetry is cl…