Direct extraction of the Eliashberg function for electron-phonon coupling: a case study of Be(10(-)10).
We propose a systematic procedure to directly extract the Eliashberg function for electron-phonon coupling from high-resolution angle-resolved photoemission measurement. The procedure is successfully applied to the Be(10(-)10) surface, providing new insights into electron-phonon coupling at this surface. The method is shown to be robust against imperfections in experimental data and suitable for wider applications.
Shi
Junren
J
Condensed Matter Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
Tang
S-J
SJ
Wu
Biao
B
Sprunger
P T
PT
Yang
W L
WL
Brouet
V
V
Zhou
X J
XJ
Hussain
Z
Z
Shen
Z-X
ZX
Zhang
Zhenyu
Z
Plummer
E W
EW