Strain analysis of a flat SRO/PCMO/SRO layer. (a) Diffraction pattern of the tube ensemble around the STO (002) reflection with experimental data (red dots) and fit (black curve, see text). The inset shows diffraction patterns of the flat film (blue, dotted line) and the rolled-up tube (black dashed line) vs. the Bragg angle around the STO (002) peak. Note the logarithmic intensity scale. (b) Calculated tube lattice parameters in longitudinal (az), transversal (at), and radial (ar) directions vs. the position measured from the inside of the tube.
Deneke et al. Nanoscale Research Letters 2011 6:621 doi:10.1186/1556-276X-6-621