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ID 31179
file
creator
He, Shaolong
Zeng, Zhenhua
Arita, Masashi
Qiao, Shan
Li, Guoling
Li, Wei-Xue
Zhang, Yan-Feng
Zhang, Yi
Ma, Xucun
Jia, Jinfeng
Xue, Qi-Kun
NDC
Physics
abstract
Atomically uniform lead films are prepared on Si(111)-(7 x 7) substrates by the molecular beam epitaxy method, and their electronic structures are investigated by high-resolution angle-resolved photoemission spectroscopy and first-principles density functional theory calculations. We have observed the six-fold symmetric Fermi surfaces of Pb/Si(111)-(7 x 7) films. Their topology and size are almost the same regardless of the difference of film thicknesses (17, 21, 24 and 25 monolayers). The comparison between the measured and calculated thin-film Fermi surfaces suggests that the as-prepared Pb/Si(111)-(7 x 7) films are dominated by the hexagonal-close-packed stacking films instead of the face-centered-cubic ones. The theoretical calculations also indicate that spin-orbit coupling plays an important role in the band structures and Fermi surface topologies of Pb films.
journal title
New Journal of Physics
volume
Volume 12
start page
113034-1
end page
113034-9
date of issued
2010-11
publisher
IOP Publishing Ltd
issn
1367-2630
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
(c) IOP Publishing Ltd and Deutsche Physikalische Gesellschaft
relation url
department
Hiroshima Synchrotron Radiation Center