Figure 3 | Scientific Reports

Figure 3

From: Atomic-resolved depth profile of strain and cation intermixing around LaAlO3/SrTiO3 interfaces

Figure 3

EELS fine structure of the O-K absorption edge across two LaAlO3/SrTiO3 heterostructures.

(a,b) Experimental spectra recorded at the (a) 3 u.c. (b) 5 u.c. sample hetero-interface (red triangles) and deeper into the SrTiO3 substrate of same sample (green dots). (c) Experimental spectrum for LaAlO3 away from the interface. Experimental spectra are clearly influenced by cation intermixing rather than extrinsic donors40.

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