Published September 15, 1989 | Version v1
Journal article Metadata-only

Valence changes and core-level shifts of Sm adsorbed on Mo(110)

Creators

  • 1. Department of Physics, Uppsala University, P.O. Box 530, S-75121 Uppsala, Sweden (Sweden)
  • 2. MAX-lab, Lund University, P.O. Box 118, S-22100 Lund, Sweden

Description

The valence state and 4f core-level shifts of the system Sm/Mo(110) have been investigated by means of photoelectron spectroscopy. The experiments were performed at the MAX synchrotron radiation facility in Lund. The spectra are used to discuss the properties of the overlayer structures. A valence transition from Sm2+ at low coverages to Sm3+ at high coverages occurs. An ordered c(7x2) submonolayer structure is found to be of mixed valence (heterogeneous or homogeneous). A divalent Sm surface appears above one monolayer. The growth mode is found to be essentially layer by layer

Additional details

Publishing Information

Journal Title
Physical Review, B: Condensed Matter
Journal Volume
39
Journal Issue
9
Series
Phys. Rev., B: Condens. Matter.
Journal Page Range
5916-5923
ISSN
0163-1829
CODEN
PRBMD

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
21018139
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
ADSORPTION; BINDING ENERGY; CRYSTAL GROWTH; CRYSTAL STRUCTURE; EPITAXY; F STATES; LAYERS; MOLYBDENUM; PHOTOELECTRON SPECTROSCOPY; SAMARIUM; VALENCE
Descriptors DEC
ELECTRON SPECTROSCOPY; ELEMENTS; ENERGY; ENERGY LEVELS; METALS; RARE EARTHS; SPECTROSCOPY; TRANSITION ELEMENTS