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Study of electronic structure of ultrathin Co films epitaxially grown on Cu (111) by angle-resolved photoemission spectroscopy
其他题名用角分辨光电子能谱研究CO/CU(111)外延超薄膜的电子结构
Su R(苏润); Liu FQ(刘凤琴); Qian HJ(钱海杰); Su, R; Liu, FQ; Qian, HJ
2003
发表期刊HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION
卷号27期号:2页码:#REF!
通讯作者Su, R (reprint author), Chinese Acad Sci, Inst High Energy Phys, Beijing 100039, Peoples R China.
文章类型Article
摘要Electronic structure of Co films grown by molecular-beam epitaxy on Cu ( 111) surface was studied by Synchrotron Radiation angle-resolved Photoemission Spectroscopy. The peak intensity of the surface state at the (&UGamma;) over bar point of Cu (111) surface Brillouin zone still can be distinguished even at the coverage of 2ML, which means that the growth mode is not the two-dimensional layer-by-layer mode. With changing the momentum along the direction of Gamma-Lambda-Gamma of Brillouin zone of bulk copper by varying photon energy, we find that the most prominent peak of cobalt film both at the coverage of 1ML and 2ML disperses like that of the surface of Co(0001). With a fixed photon energy for the coverage of cobalt from to 2ML, the changes of cobalt energy band were obtained. It shows that the 3d-band modification do exist because of the interaction of substrate and film atoms at the initial stage of growth. Compared with theoretical calculations, we find that films show ferromagnetic characters even at 1ML thickness, and they might grow as bilayer island at the initial period of growth.
关键词angle-resolved photoemission spectroscopy electronic structure exchange split
学科领域Physics
收录类别SCI
WOS类目Physics, Nuclear ; Physics, Particles & Fields
WOS记录号WOS:000181047100021
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被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ihep.ac.cn/handle/311005/226716
专题多学科研究中心
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GB/T 7714
Su R,Liu FQ,Qian HJ,et al. Study of electronic structure of ultrathin Co films epitaxially grown on Cu (111) by angle-resolved photoemission spectroscopy[J]. HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,2003,27(2):#REF!.
APA 苏润,刘凤琴,钱海杰,Su, R,Liu, FQ,&Qian, HJ.(2003).Study of electronic structure of ultrathin Co films epitaxially grown on Cu (111) by angle-resolved photoemission spectroscopy.HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION,27(2),#REF!.
MLA 苏润,et al."Study of electronic structure of ultrathin Co films epitaxially grown on Cu (111) by angle-resolved photoemission spectroscopy".HIGH ENERGY PHYSICS AND NUCLEAR PHYSICS-CHINESE EDITION 27.2(2003):#REF!.
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