Nanoscale domain switching mechanism of Bi3.15Eu0.85Ti3O12 thin film under the different mechanical forces |
Topography images and simultaneous PFM phase images taken at different mechanical forces: 1.65 nN ((a) and (b)), 247.5 nN ((c) and (d)), 495 nN ((e) and (f)), and 742.5 nN ((g) and (h)). |