Figure 3 | Scientific Reports

Figure 3

From: Bulk vs. Surface Structure of 3d Metal Impurities in Topological Insulator Bi2Te3

Figure 3

XPS spectra for doped samples. Black curves are 2p excitations of the TM dopant atoms in Bi2Te3. Grey curves are a linear combination of standard references. Table 1 indicates the approximate proportion of each oxidation state the dopants are in. The lower right panel are DFT calculated formation energies for each dopant for four types of defects.

Table 1 The XPS spectra in Fig. 3 were decomposed into their component oxidation states through a linear combination of common oxides and metals.
Full size table

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