This article is cited in 4 papers

Surface physics, thin films

Interaction of ytterbium nanofilms grown on tungsten substrates with oxygen

M. V. Kuzmin, M. A. Mitsev

Ioffe Institute, St. Petersburg

Abstract: The interaction of ytterbium nanofilms evaporated on tungsten substrates with oxygen has been studied by Auger electron spectroscopy, thermal desorption spectroscopy, and contact potential difference measurements. It has been shown that at room temperature, no oxide is formed in the above interaction. In place of the oxide, a chemisorbed layer of nondissociated O$_2$ molecules is formed on the surface of the ytterbium nanofilms. This layer modifies the ytterbium. This modification transforms ytterbium from the divalent state into the trivalent state.

Received: 28.06.2011

 English version: Physics of the Solid State, 2012, 54:2, 404–408

Bibliographic databases:

•