Journal Article nanowire Bragg–Brentano Patterson function Research Support, Non-U.S. Gov't X-ray diffraction X-ray scattering altermagnetism angle‐resolved photoemission spectroscopy bent crystals coherent nanobeam X-ray diffraction computer programs core–shell–shell nanowire data analysis diffraction imaging direct bandgap materials electron backscatter diffraction electronic band structure finite-element simulation hetero-structure line shape linear detector nano-focus nano-focused X-ray beams nanowires powder diffraction reciprocal space resolution function scanning X-ray diffraction silicon wafers