Author/Authors :
Kurash، نويسنده , , Ibrahim and Fengqin، نويسنده , , Liu and Haijie، نويسنده , , Qian and Lin، نويسنده , , Guo and Dingchang، نويسنده , , Xian and Guangcheng، نويسنده , , Xiong and Sicheng، نويسنده , , Wu، نويسنده ,
Abstract :
Valence band photoemission experiments on Pr1−xSrxMnO3 polycrystalline system with x ranging from 0.0 to 0.4 show that the density of states of the bands appearing in the ranges between Fermi level and ∼12 eV below Fermi level have a substantial change with the doping level x. These features are discussed in terms of charge transfer in the ground states of Pr1−xSrxMnO3 system. A nonlinear charge transfer with the doping amount x is evidenced and a possible second order phase transition mediated by the charge transfer is proposed.
