Figure 3
NEXAFS spectra of vertically and horizontally aligned crystals extracted from the regions highlighted with yellow boxes in the insert. The electric vector (E) of the linearly polarized X-ray beam was parallel to the horizontal crystals. The insert shows a colour-coded component map derived by singular value decomposition analysis of the full image sequence. Pure red indicates pixels with [hor]-type spectra, pure green indicates pixels with [ver]-type spectra, and shades of yellow arise due the intermediate nature of the spectra of crystals oriented diagonally. |