Formation of unusual Cr5+ charge state in CaCr0.5Fe0.5O3 perovskite

Formation of unusual Cr⁵⁺ charge state in CaCr_0.5Fe_0.5O₃ perovskite

Dai Jian-Hong^{1, 2}, Zhao Qing¹, Sun Qian¹, Zhang Shuo³, Wang Xiao^{1, 2}, Shen Xu-Dong^{1, 2}, Liu Zhe-Hong^{1, 2}, Shen Xi^{1, 2}, Yu Ri-Cheng¹, Chan Ting-Shan⁴, Li Lun-Xiong⁵, Zhou Guang-Hui⁶, Yang Yi-feng^{1, 2, †}, Jin Chang-Qing^{1, 2}, Long You-Wen^{1, 2, ‡}

(color online) The soft XAS of CaCr_0.5Fe_0.5O₃ measured at room temperature for (a) the Fe-L_2,3 edges, and (b) the Cr-L_2,3 edges. The spectra of some related references are also shown for comparison.