Figure 7
(a) EEL spectra of BaTiO3 taken at the beam-tilt angle corresponding to the scattering vectors K = −1.5g and K = −0.5g. The vertical axis represents the spectral counts, but the two spectra are shifted with respect to each other for better comparison. (b) Experimental core-loss signals of the O K, Ti L2,3 and Ba M4,5 edges integrated over the indicated energy ranges as functions of the beam direction from −2g to +2g. Each data set is normalized by the value at kx/g100 = −2.0. |