Multi-atom resonant photoemission: A method for determining near-neighbor atomic identities and bonding

被引：109

作者：

Kay, A

Arenholz, E

Mun, S

de Abajo, FJG

Fadley, CS ^{[1
]}

Denecke, R

Hussain, Z

Van Hove, MA

机构：

[1] Univ Calif Davis, Dept Phys, Davis, CA 95616 USA

[2] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

[3] Univ Calif Berkeley, Lawrence Berkeley Lab, Adv Light Source, Berkeley, CA 94720 USA

[4] Univ Basque Country, Dept CCIA, San Sebastian 20080, Spain

[5] Univ Basque Country, Dept Fis Mat, San Sebastian 20080, Spain

来源：

SCIENCE | 1998年 / 281卷 / 5377期

关键词：

D O I：

10.1126/science.281.5377.679

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Measurements and theoretical calculations are reported for an interatomic multi-atom resonant photoemission (MARPE) effect that permits direct determination of near-neighbor atomic identities (atomic numbers). MARPE occurs when the photon energy is tuned to a core-level absorption edge of an atom neighboring the emitting atom, with the emitting Level having a lower binding energy than the resonant level. Large peak-intensity enhancements of 33 to 105 percent and energy-integrated effects of 11 to 29 percent were seen in three metal oxides. MARPE should also be sensitive to bond distance, bonding type, and magnetic order, and be observable via the secondary processes of x-ray fluorescence and Auger decay.

引用

页码：679 / 683

页数：5

共 23 条

[1] Direct observation of lattice polaron formation in the local structure of La1-xCaxMnO3 [J].