Strong and nearly 100$\%$ spin-polarized second-harmonic generation from ferrimagnet Mn${}_2$RuGa

Y. Q. Liu, M. S. Si, G. P. Zhang

Second-harmonic generation (SHG) has emerged as a promising tool for detecting electronic and magnetic structures in noncentrosymmetric materials, but 100$\%$ spin-polarized SHG ha…