Figure 4

X-ray absorption and emission at the transition metal L-edges along with calculated spectra (pink). The Bi₂Te₃: TM XAS spectra are shown in black with standard oxide references in grey for comparison. Panels (a–c) and (g–i) contain the XAS spectra, while beneath each is the corresponding element’s XES spectra in panels d–f and j–l, respectively. In panel (g), the iron calculations are shown in orange and dark yellow, with the linear sum of the two shown in pink. A thorough discussion of each element’s spectra is given separately in the main text. High quality Ni, Co, Fe metal XAS reference spectra were taken from ref. 24.