Published August 1, 2008
| Version v1
Journal article
Surface crystallography and electronic structure of potassium yttrium tungstate
- 1. Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk 90, 630090 (Russian Federation)
- 2. Frantsevych Institute for Problems of Materials Science, NAS of Ukraine, 3 Krzhyzhanivsky Str., UA-03142 Kiev (Ukraine)
- 3. Departments of Metallurgical and Materials Engineering and Electrical and Computer Engineering, University of Texas at El Paso, El Paso, Texas 79968 (United States)
Description
Structural and electronic characteristics of KY(WO4)2 (KYW) (010) crystal surfaces have been studied using reflection high-energy electron diffraction (RHEED) and x-ray photoelectron spectroscopy (XPS). The results indicate that the crystal structure and chemical composition of the mechanically polished pristine surface is stoichiometrically well maintained as expected for KYW crystals. Combined measurements of RHEED and XPS as a function of 1.5 keV Ar+ ion irradiation of the KYW (010) surfaces indicate amorphization, partial loss of potassium atoms, and partial transformation of chemical valence state of tungsten from W6+ to a lower valence state, W0 state predominantly, which induces electronic states at the top of valence band
Additional details
Identifiers
- DOI
- 10.1063/1.2963957;
Publishing Information
- Journal Title
- Journal of Applied Physics
- Journal Volume
- 104
- Journal Issue
- 3
- Journal Page Range
- p. 033518-033518.6
- ISSN
- 0021-8979
- CODEN
- JAPIAU
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40018075
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- AMORPHOUS STATE; ARGON IONS; CHEMICAL COMPOSITION; CRYSTAL STRUCTURE; CRYSTALLOGRAPHY; ELECTRON DIFFRACTION; ELECTRONIC STRUCTURE; ION BEAMS; KEV RANGE 01-10; POTASSIUM; POTASSIUM COMPOUNDS; STOICHIOMETRY; SURFACES; TUNGSTEN; TUNGSTEN IONS; VALENCE; X-RAY PHOTOELECTRON SPECTROSCOPY; YTTRIUM TUNGSTATES
- Descriptors DEC
- ALKALI METAL COMPOUNDS; ALKALI METALS; BEAMS; CHARGED PARTICLES; COHERENT SCATTERING; DIFFRACTION; ELECTRON SPECTROSCOPY; ELEMENTS; ENERGY RANGE; IONS; KEV RANGE; METALS; OXYGEN COMPOUNDS; PHOTOELECTRON SPECTROSCOPY; REFRACTORY METAL COMPOUNDS; REFRACTORY METALS; SCATTERING; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS; TRANSITION ELEMENTS; TUNGSTATES; TUNGSTEN COMPOUNDS; YTTRIUM COMPOUNDS
Optional Information
- Notes
- (c) 2008 American Institute of Physics