Wang S, Xu H D, Cai J, Wang Y P, Tao H L, Cui Y, He M, Song B, Zhang Z H
School of Materials Science and Engineering, Dalian Jiaotong University, Dalian, 116028, PR China.
School of Physics and Electronic Technology, Liaoning Normal University, Dalian, 116029, PR China.
Micron. 2019 May;120:43-47. doi: 10.1016/j.micron.2019.01.012. Epub 2019 Jan 30.
The electronic structure of BiFeO has been investigated by using electron energy loss spectrum and first-principle calculations. Assignments of the individual interband transitions have been accomplished by comparing the interband transition energy with the calculated PDOS. The DOS is mainly divided into two regions, the hybridized region of O 2p with Fe 3p in the valence band and that of O 2p hybridized with Bi 6p in the conduction band. From the simulation of high energy-loss near-edge structure, the core-hole effect is believed to be more significant. The feature groups for the experimental spectra of O K-edge and Fe L-edge are consistent with simulation results.
