KBa3M2F14Cl (M = Zr, Hf): novel short-wavelength metal mixed halides with largest second-harmonic generation responses contributed by mixed functional moieties

The development of short-wavelength nonlinear optical (NLO) materials is indispensable and urgently for further applications. Halides have been disregarded as potential NLO materials with deep-ultraviolet (DUV) cutoff edge owing to...