ADSORPTION OF H2O ON BI2SR2CACU2O8 AND GRAPHITE STUDIED WITH HREELS

被引：9

作者：

PHELPS, RB

KESMODEL, LL

KELLEY, RJ

机构：

[1] INDIANA UNIV,DEPT PHYS,BLOOMINGTON,IN 47405

[2] INDIANA UNIV,MAT RES INST,BLOOMINGTON,IN 47405

[3] UNIV WISCONSIN,DEPT PHYS,MADISON,WI 53706

来源：

SURFACE SCIENCE | 1995年 / 340卷 / 1-2期

关键词：

COPPER OXIDES; ELECTRON ENERGY LOSS SPECTROSCOPY; ELECTRON-SOLID SCATTERING AND TRANSMISSION INELASTIC; GRAPHITE; LOW INDEX SINGLE CRYSTAL SURFACES; PHYSICAL ADSORPTION; POLYCRYSTALLINE SURFACES; VIBRATIONS OF ADSORBED MOLECULES;

D O I：

10.1016/0039-6028(95)00669-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We report vibrational spectra of H2O adsorbed on the (001) surface of Bi2Sr2CaCu2O8 (Bi 2:2:1:2) single crystals at 88 K. Spectra were measured with high-resolution electron-energy-loss spectroscopy (HREELS) for exposures from 0.5 to 1.5 langmuir, and similar data were measured using a graphite substrate for comparison. On both substrates, the adsorbed H2O exhibited molecular adsorption and formed hydrogen-bonded clusters over the range of exposures studied. These observations confirm that H2O binds weakly to the (001) surface of Bi 2:2:1:2, in agreement with photoemission results for the same system.

引用

页码：134 / 140

页数：7

共 19 条

[1] CHARGING EFFECTS IN MEASUREMENTS OF HIGH-TEMPERATURE SUPERCONDUCTORS WITH HIGH-RESOLUTION ELECTRON-ENERGY-LOSS SPECTROSCOPY [J].