Photon and electron: stimulated desorption from rare earth oxides

Conference · Wed Jan 01 04:00:00 EST 1986

OSTI ID:5348515

Loubriel, G

Resonances in the photon-stimulated desorption (PSD) spectra of La, Ce, Pr, Sm, Er, Tm, and Yb oxides are reported at photon energies near their 4d edges and at the Er(3d) edge. These resonances, also seen in Soft X-ray Absorption (SXA), arise from excitations of d electrons to the 4f shell. Comparisons of SXA and PSD show how PSD can be used to determine surface valency. ESD data from Ce and Er oxides is used to establish the importance of the 5p level in the electronic pathways which lead to desorption.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5348515
• Report Number(s): SAND-86-1765C; CONF-8606157-3; ON: DE86015830
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CATIONS
CERIUM COMPOUNDS
CERIUM OXIDES
CHALCOGENIDES
CHARGED PARTICLES
DESORPTION
ELECTRONIC STRUCTURE
EMISSION
ERBIUM COMPOUNDS
ERBIUM OXIDES
HYDROGEN IONS
HYDROGEN IONS 1 PLUS
IONS
LANTHANUM COMPOUNDS
LANTHANUM OXIDES
OXIDES
OXYGEN COMPOUNDS
PHOTOEMISSION
PRASEODYMIUM COMPOUNDS
PRASEODYMIUM OXIDES
RARE EARTH COMPOUNDS
RESONANCE
SAMARIUM COMPOUNDS
SAMARIUM OXIDES
SECONDARY EMISSION
SORPTIVE PROPERTIES
SURFACE PROPERTIES
YTTERBIUM COMPOUNDS
YTTERBIUM OXIDES