Fig. 2: The frequency-dependent SHG susceptibility tensor components \({{\boldsymbol{\chi }}}_{{\boldsymbol{yyy}}}^{(2)}\) and the polarization angle-dependent SHG response intensity of AB’A’ and AB’C’ configuration. | npj Computational Materials

Fig. 2: The frequency-dependent SHG susceptibility tensor components \({{\boldsymbol{\chi }}}_{{\boldsymbol{yyy}}}^{(2)}\) and the polarization angle-dependent SHG response intensity of AB’A’ and AB’C’ configuration.

From: Cluster sliding ferroelectricity in trilayer Quasi-Hexagonal C60

Fig. 2

a The frequency-dependent SHG susceptibility tensor components \({\chi }_{yyy}^{(2)}\) of AB’A’ and AB’C’; b the polarization angle-dependent SHG response intensity of AB’A’ stacking configuration; c the polarization angle-dependent SHG response of AB’C’ stacking configuration. \({I}_{\parallel }\) and \({I}_{\perp }\) are the parallel and perpendicular components of the SHG response intensity, respectively.

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