Valence Band Photoelectron Investigation of Pr1-xSrxMnO3 System

Kurash Ibrahim; WU Zi-Yu; QIAN Hai-Jie; LIU Feng-Qin; XIAN Ding-Chang

Chinese Physics C> 2001, Vol. 25> Issue(S1) : 28-32

Valence Band Photoelectron Investigation of Pr_1-xSr_xMnO₃ System

Institute of High Energy Physics,CAS,Beijing 100039,China

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Abstract：
Valence band photoemission experiments on Pr_1-xSr_xMnO₃ 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 ～12eV 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 Pr_1-xSr_xMnO₃ 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.

References

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Kurash Ibrahim, WU Zi-Yu, QIAN Hai-Jie, LIU Feng-Qin and XIAN Ding-Chang. Valence Band Photoelectron Investigation of Pr_1-xSr_xMnO₃ System[J]. Chinese Physics C, 2001, 25(S1): 28-32.

Kurash Ibrahim, WU Zi-Yu, QIAN Hai-Jie, LIU Feng-Qin and XIAN Ding-Chang. Valence Band Photoelectron Investigation of Pr_1-xSr_xMnO₃ System[J]. Chinese Physics C, 2001, 25(S1): 28-32. shu

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Received: 1900-01-01
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Valence Band Photoelectron Investigation of Pr_1-xSr_xMnO₃ System

Corresponding author: Kurash Ibrahim,

Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date: 1900-01-01
Accepted Date: 1900-01-01
Available Online: 2001-06-22

Abstract: Valence band photoemission experiments on Pr_1-xSr_xMnO₃ 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 ～12eV 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 Pr_1-xSr_xMnO₃ 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.