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ID 19371
file
creator
Strocov, Vladimir N.
Claessen, Ralph
Nicolay, Georg
Hüfner, Stefan
Harasawa, Ayumi
Shin, Shik
Kakizaki, Akito
Starnberg, H. I.
Nilsson, P. O.
Blaha, Peter
abstract
A method of band mapping providing full control of the three-dimensional k is described in detail. Angle-dependent very-low-energy electron diffraction is applied to determine the photoemission final states along a Brillouin zone symmetry line parallel to the surface; photoemission out of these states is then utilized to map the valence bands in the constant-final-state mode. The method naturally incorporates the non-free-electron and excited-state self-energy effects in the unoccupied band, resulting in an accuracy superior over conventional techniques. Moreover, its intrinsic accuracy is less limited by lifetime broadening. As a practical advantage, the method provides access to a variety of lines in the Brillouin zone using only one crystal surface. We extensively tested the method on Cu. Several new aspects of the electronic structure of this metal are determined, including non-free-electron behavior of unoccupied bands and missing pieces of the valence band.
journal title
Physical Review B - Condensed Matter and Materials Physics
volume
Volume 63
issue
Issue 20
start page
205108-1
end page
205108-16
date of issued
2001-04-27
publisher
American Physical Society
issn
0163-1829
ncid
publisher doi
language
eng
nii type
Journal Article
HU type
Journal Articles
DCMI type
text
format
application/pdf
text version
publisher
rights
Copyright (c) 2001 The American Physical Society.
relation url
department
Graduate School of Science