Temperature effect on the electronic structure of Nb:SrTiO3 (100) surface*
Zhang Shuang-Honga),b), Wang Jia-Oub)†, Qian Hai-Jieb), Wu Ruib), Zhang Nianb), Lei Taob), Liu Chenb), Kurash Ibrahim
       
XPS spectra (a) collected from STO surfaces at 350 °C and 920 °C. The O 1s (b), Ti 2p (c), and valence band (the photo-energy is 75 eV) (d), spectra are from the STO surface after annealing at 920 °C.