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O 1s2p2p Auger process investigation of the Pr1-xSrxMnO3 system
Alternative TitlePr1-xSrxMnO3体系中 O1s2p2p俄歇过程特性研究
Kui RX(奎热西); Qian HJ(钱海杰); 买买提依明; Su R(苏润); Wang JO(王嘉鸥); Wu X(巫翔); Dong YH(董宇辉); Wu ZY(吴自玉); Wang YT(王雨田); Wei L(魏龙); Ibrahim, K; Qian, HJ; Abbas, MI; Su, R; Wang, JO; Wu, X; Dong, YH; Wu, ZY; Wang, YT; Wei, L
Corresponding AuthorIbrahim, K (reprint author), Chinese Acad Sci, Inst High Energy Phys, Synchrotron Radiat Lab, Beijing 100039, Peoples R China.
AbstractWe have measured the photon-energy dependence of the 0 1s2p2p Auger line at the 0 K threshold, below Mn L-2,L-3 as well as above the Mn L-2,L-3 edge of colossal magnetoresistance ( CMR) materials Pr(1-x)SrxMnO(3) ( PSMO) with x = 0.0 and x 0.3 compositions. Experimental results show that the 0 1s2p2p Auger peak splits and it can be best fitted to three component peaks. The relative intensity of the three peaks feature retain essentially similar values, in an experiment allowable error range of several percents, for both composition PSMO at 0 K threshold and below Mn L-2,L-3 excitation. However, the total intensity has fluctuations indicating the feature of final state effect. This situation further changes drastically at above Mn L-2,L-3 excitation energy by increasing the total intensity of x = 0.3 system by a factor of 4 to that of x = 0.0. These are discussed in terms of possible interatomic response and different valence band DOS for different PSMO compositions in the frame of covalent picture.
Keywordauger decay photon energy dependence covalency perovskite oxygen 1s photoionization
Subject AreaPhysics
Indexed BySCI
WOS SubjectPhysics, Nuclear ; Physics, Particles & Fields
WOS IDWOS:000220592300010
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Document Type期刊论文
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GB/T 7714
Kui RX,Qian HJ,买买提依明,et al. O 1s2p2p Auger process investigation of the Pr1-xSrxMnO3 system[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2003,27:#REF!.
APA 奎热西.,钱海杰.,买买提依明.,苏润.,王嘉鸥.,...&Wei, L.(2003).O 1s2p2p Auger process investigation of the Pr1-xSrxMnO3 system.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,27,#REF!.
MLA 奎热西,et al."O 1s2p2p Auger process investigation of the Pr1-xSrxMnO3 system".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 27(2003):#REF!.
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