Figure 3.

(A) Preparation of a thin section of a MG cell inside FIB. (a) MG cell, (b) preparation of a thin section by lift out method, (c) nanomanipulator to lift up the lamella and then weld the lamella on TEM grid inside FIB, (d) lamella of MG cell is welded on TEM grid. (B) TEM images of the prepared lamella of MG cell. (a) TEM image confirms that MENPs ate distributed inside the cell without agglomeration and average particle size of 25–30 nm, (b) atomic planes, as red circles, correspond to CFO and BFO, (c) BTO 110 planes, and (d) CFO 111 planes.