TEMPERATURE EFFECTS ON THE V2O5 SURFACE PHONON-SPECTRUM

被引：2
|
作者：
POELMAN, H [1 ]
VENNIK, J [1 ]
DALMAI, G [1 ]
机构：
[1] INST SUPER ELECTR NORD,UA 253,SURFACES & INTERFACES LAB,F-59046 LILLE,FRANCE
来源：
PHYSICA STATUS SOLIDI A-APPLIED RESEARCH | 1988年 / 107卷 / 02期
关键词：
SPECTROSCOPY; ELECTRON - Applications - VANADIUM COMPOUNDS - Thermal Effects;
D O I：
10.1002/pssa.2211070227
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The surface phonon spectra of V//2O//5 are investigated by means of high resolution electron energy loss spectroscopy (HREELS). After characterization of the spectrum, measurements are performed as a function of temperature. In the range between 560 and 650 K the gain-to-loss intensity ratio shows a considerable deviation from the theoretical Boltzmann relation, indicating that an important change takes place in the sample. It is assumed that in this temperature region, the slightly distorted superstructure V//4O//9 is formed at the V//2O//5 surface by thermally induced oxygen loss.
引用
收藏
页码：731 / 737
页数：7
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