Femtosecond interatomic Coulombic decay in free neon clusters: large lifetime differences between surface and bulk.
A quantitative determination of 2s vacancy lifetimes in surface and bulk atoms of free Ne clusters has been made. While for free atoms the 2s inner-valence hole has a ps lifetime, it reduces to 6+/-1 fs for cluster bulk atoms. For surface atoms, the lifetime is on average longer than 30 fs. The lifetime estimate was obtained from fits of high-resolution photoelectron spectra of Ne clusters. The shortening of the lifetime is attributed to the coordination dependent interatomic Coulombic decay, which is extremely sensitive to internuclear distances.
Ohrwall
G
G
Department of Physics, Uppsala University, Box 530, S-751 21 Uppsala, Sweden. gunnar.ohrwall@fysik.uu.se
Tchaplyguine
M
M
Lundwall
M
M
Feifel
R
R
Bergersen
H
H
Rander
T
T
Lindblad
A
A
Schulz
J
J
Peredkov
S
S
Barth
S
S
Marburger
S
S
Hergenhahn
U
U
Svensson
S
S
Björneholm
O
O