P. A. Dementev, E. V. Dementevа, M. N. Lapushkin, D. A. Smirnov, S. N. Timoshnev, “Effect of sodium atom adsorption on the electronic structure of a gold film”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2022, Volume 48, Issue 16,Pages <nobr>43

Effect of sodium atom adsorption on the electronic structure of a gold film

P. A. Dementev^a, E. V. Dementevа^a, M. N. Lapushkin^a, D. A. Smirnov^b, S. N. Timoshnev^c

^a Ioffe Institute, St. Petersburg, Russia
^b Technische Universität Dresden, Dresden, Germany
^c Alferov Federal State Budgetary Institution of Higher Education and Science Saint Petersburg National Research Academic University of the Russian Academy of Sciences, St. Petersburg, Russia

Abstract: The electronic structure of a gold film deposited on W was studied during the adsorption of sodium atoms. An analysis of the photoemission spectra from the valence band and core levels of Au 4$f$ and Na 2$p$ upon synchrotron excitation in the photon energy range of 80–600 eV showed that Na adsorption leads to the formation of Na$_x$Au$_y$ intermetallic compounds of various stoichiometry under the Na monolayer.

Keywords: adsorption, sodium, gold, intermetallic compound.

Received: 31.03.2022
Revised: 08.05.2022
Accepted: 05.07.2022

DOI: 10.21883/PJTF.2022.16.53207.19207