2 papers
cond-mat.mtrl-sci2024
Insulating moiré homobilayers lack a threefold symmetric second harmonic generation
Luis Enrique Rosas-Hernandez, Jose Luis Cabellos, Angiolo Huamán +2
Atoms within moiré bilayers relax in-plane to minimize elastic energy [e.g., Cazeaux et al., J. Elast. 154, 443 (2023)]; such relaxation brings their space group symmetries down t…
cond-mat.mtrl-sci2024
Substrate interference and strain in the second harmonic generation from MoSe monolayers
S. Puri, S. Patel, J. L. Cabellos +4
Nonlinear optical materials of atomic thickness--such as non-centrosymmetric 2H transition metal dichalcogenide monolayers--have a second order nonlinear susceptibility (…