Size-dependent lattice structure of palladium studied by x-ray absorption spectroscopy

被引：52

作者：

Lin, Chih-Ming ^{[1
]}

Hung, Tsu-Lien

Huang, Yen-Heng

Wu, Kung-Te

Tang, Mau-Tsu

Lee, Chih-Hao

Chen, C. T.

Chen, Y. Y.

机构：

[1] Natl Hsinchu Univ Educ, Dept Appl Sci, Hsinchu 30014, Taiwan

[2] Natl Tsing Hua Univ, Dept Phys, Hsinchu 30013, Taiwan

[3] Natl Tsing Hua Univ, Dept Engn & Syst Sci, Hsinchu 30013, Taiwan

[4] Soochow Univ, Dept Phys, Taipei, Taiwan

[5] Natl Synchrotron Radiat Res Ctr, Hsinchu 30076, Taiwan

[6] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 12期

关键词：

D O I：

10.1103/PhysRevB.75.125426

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

X-ray absorption spectroscopy measurements have been made on 7-, 12-, and 23-nm palladium particles, along with bulk material as reference. With decreasing particle size, the extended x-ray absorption fine spectra reveal a substantial contraction of the nearest-neighbor distance and a reduction of the average coordination number, but an increasing Debye-Waller factor. Meanwhile, the x-ray absorption near edge spectra show a decreasing density of unoccupied states with decreasing particle size.

引用

页数：6

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