Abstract
Desorption of K atoms by laser-excitation of surface plasmons in small K particles is reported. The desorption rate has been measured for different laser wavelengths and particle sizes. Time-of-flight measurements reveal a kinetic energy of the desorbed atoms of Ekin=0.13(3) eV. From the experimental data it is concluded that the desorption mechanism is non-thermal in nature. Comparison of the results reported here with our earlier work on Na desorption is made.
This is a preview of subscription content, log in via an institution to check access.
References
W. Hoheisel, K. Jungmann, M. Vollmer, R. Weidenauer, F. Träger: Phys. Rev. Lett 60, 1649 (1988)
W. Hoheisel, U. Schulte, M. Vollner, F. Träger: Appl. Phys. A 51, 271 (1990)
I. Lee, J.E. Parks, T.A. Callcott, E.T. Arakawa: Phys. Rev. B 39, 8012 (1989)
A.M. Bonch-Bruevich, T.A. Vartanyan, A.V. Garlanov, Yu.N. Maksimov, S.G. Przhibelsky, V.V. Khromov: Sov. Phys. JETP 70, 604 (1990)
A.M. Bonch-Bruevich, T.A. Vartanyan, Yu.N. Maksimov, S.G. Przhibelsky, V.V. Khromov: To be published
J.-C. Payan, D. Roux: Opt. Commun. 7, 36 (1973)
R. Monreal, S.P. Apell: Phys. Rev. B 41, 7852 (1990)
S.P. Apell, J. Giraldo, S. Lundqvist: Phase Transistions 24–26, 577 (1990)
W. Hoheisel, M. Vollmer, F. Träger: To be published
M. Vollmer, R. Weidenauer, W. Hoheisel, U. Schulte, F. Träger: Phys. Rev. B 40, 12509 (1989)