Fig. 3
From: Picometer polar atomic displacements in strontium titanate determined by resonant X-ray diffraction
Characterization during formation of the MFP phase The [001] oriented SrTiO3 single crystal is sandwiched between two titanium electrodes such that the electric field is directed perpendicular to the surface (c, not drawn to scale). A few micrometer thick, strained MFP layer can be observed only on the anode side where the X-ray measurements are performed. The diffraction profiles (a, here 007 reflection) show a shoulder developing with at lower out of plane momentum transfer Q z (in terms of reciprocal lattice units–r.l.u.) while the leakage current through the crystal (b) increases
