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题名: Structure and properties of samarium overlayer and Sm/Rh surface alloy on Rh(100)
作者: Ma, YS;  Zhu, JF;  Zhou, WP;  Zhai, RS;  Bao, XH;  Zhang, XY;  Zhuang, SX
关键词: Sm film ;  Rh(100) surface ;  Sm/Rh surface alloy ;  AES ;  LEED ;  XPS
刊名: CHINESE SCIENCE BULLETIN
发表日期: 2001-10-01
卷: 46, 期:20, 页:1689-1691
收录类别: SCI
文章类型: Article
部门归属: 5040
项目归属: 502
WOS标题词: Science & Technology
类目[WOS]: Multidisciplinary Sciences
研究领域[WOS]: Science & Technology - Other Topics
英文摘要: The structure and properties of Sm overlayer and Sm/Rh surface alloy have been investigated with Auger electron spectroscopy (AES), low energy electron diffraction (LEED), X-ray photoelectron spectroscopy (XPS), and temperature programmed desorption spectroscopy (TDS). The growth of Sm on Rh(100) at room temperature (RT) appears following the Stranski-Krastanov growth mode and only the trivalent state Sm is observed from XPS results. Thermal treatment of the Sm film at 900 K leads to the formation of ordered surface alloy which shows the c(5 root2 x root2)R45 degrees and c(2 x 2) LEED patterns. Annealing the Sm film at temperature above 400 K makes the binding energy (B.E.) of Sm 3d(5/2) shift to higher energy by 0.7 eV, which indicates charge transfer from Sm to Rh(100) substrate, causing the increase of CO desorption temperature.
关键词[WOS]: RU(001) ;  FILMS
语种: 英语
原文出处: 查看原文
WOS记录号: WOS:000172304000004
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/92071
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Univ Sci & Technol China, Dept Phys Chem, Hefei 230026, Peoples R China
2.Univ Sci & Technol China, Natl Synchrotron Radiat Lab, Hefei 230026, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Ma, YS,Zhu, JF,Zhou, WP,et al. Structure and properties of samarium overlayer and Sm/Rh surface alloy on Rh(100)[J]. CHINESE SCIENCE BULLETIN,2001,46(20):1689-1691.
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