Fig. 3: Macroscale chemical heterogeneity of BTS-M.
From: Multiscale-engineered ferroelectric ceramics exhibiting superior electrocaloric performance
a Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS) images. b EDS spectra and c atomic percentages of the Sn-poor (blue-box) and Sn-rich (red-box) regions. Spatial maps of d Raman shifts and e full widths at half maximum (FWHM). f Doman switching voltage of switching spectroscopy piezo-response force microscopy (SS–PFM) measurements.
