IHEP OpenIR  > 多学科研究中心
Synchrotron radiation photoemission study of Yb2.75C60
He, SL; Li, HN; Wang, XX; Li, HY; Kurash, I; Qian, HJ; Su, R; Abbas, MI; Zhong, J; Hong, CH; Kui RX(奎热西); Qian HJ(钱海杰); Su R(苏润); Abbas, MI; Zhong J(钟俊); Hong CH(洪才浩)
2005
发表期刊ACTA PHYSICA SINICA
卷号54期号:3页码:1400-1405
通讯作者Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China ; Chinese Acad Sci, Inst High Energy Phys, Lab Synchrotron Radiat, Beijing 100039, Peoples R China
文章类型Article
摘要The Yb-2.75 C-60 thin film was prepared and studied by using the synchrotron radiation ultraviolet photoemission spectroscopy (PES) in an ultra-high-vacuum system. The spectral line obtained in the range between the Fermi level and similar to 5 eV binding energy consists of those lines from the valence band (the molecular orbital LUMO, HOMO and HOMO-1 derived energy bands of C-60) and core levels(Yb 4f(7/2) and 4f(5/2)). Taking into account the variations of the photoinization cross sections of C 2p and Yb 4f with different photon energies, we have measured the photoemission spectra under the condition of varying photon energies, and carried out simulations to deduce the component contributions. The peak positions, widths and intensities for the components are obtained quantitatively. The results reveals that the photoemission of 4f electrons has a significant intensity with the photon energies larger than similar to 30.0 eV, and that the measured spectra depart drastically from the density of states of the valence band. To observe the valence band structure, one should carry out the PES measurements by using photons with energies less than 30.0 eV. The photoionization cross-section oscillation is also observed in Yb2.75C60 with almost the same oscillation period as that for pure C-60. However, the oscillation amplitude is obviously smaller than that for pure C-60, which reveals that the chemical environment of C-60 in compounds has non-negligible effects on the photoionization cross-section oscillation phenomenon.
关键词Yb2.75C60 SR-PES photoionization cross section oscillation
学科领域Physics
研究领域[WOS]Physics ; Physics
URL查看原文
语种英语
研究领域[WOS]Physics ; Physics
WOS类目Physics, Multidisciplinary
WOS记录号WOS:000227786300070
引用统计
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/239340
专题多学科研究中心
加速器中心
作者单位中国科学院高能物理研究所
推荐引用方式
GB/T 7714
He, SL,Li, HN,Wang, XX,et al. Synchrotron radiation photoemission study of Yb2.75C60[J]. ACTA PHYSICA SINICA,2005,54(3):1400-1405.
APA He, SL.,Li, HN.,Wang, XX.,Li, HY.,Kurash, I.,...&洪才浩.(2005).Synchrotron radiation photoemission study of Yb2.75C60.ACTA PHYSICA SINICA,54(3),1400-1405.
MLA He, SL,et al."Synchrotron radiation photoemission study of Yb2.75C60".ACTA PHYSICA SINICA 54.3(2005):1400-1405.
条目包含的文件
文件名称/大小 文献类型 版本类型 开放类型 使用许可
6526.pdf(214KB)期刊论文作者接受稿限制开放CC BY-NC-SA请求全文
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[He, SL]的文章
[Li, HN]的文章
[Wang, XX]的文章
百度学术
百度学术中相似的文章
[He, SL]的文章
[Li, HN]的文章
[Wang, XX]的文章
必应学术
必应学术中相似的文章
[He, SL]的文章
[Li, HN]的文章
[Wang, XX]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。