THE GROWTH OF THIN CU FILMS ON AN O-PRECOVERED RU(0001) SURFACE STUDIED BY LOW-ENERGY ION-BEAMS

被引:13
作者
SHEN, YG
OCONNOR, DJ
VANZEE, H
WANDELT, K
MACDONALD, RJ
机构
[1] EINDHOVEN UNIV TECHNOL,FAC PHYS,5600 MB EINDHOVEN,NETHERLANDS
[2] EINDHOVEN UNIV TECHNOL,SCHUIT INST CATALYSIS,5600 MB EINDHOVEN,NETHERLANDS
[3] UNIV BONN,INST PHYS & THEORET CHEM,W-5300 BONN 1,GERMANY
基金
澳大利亚研究理事会;
关键词
ION SCATTERING; OXYGEN; RUTHENIUM; SURFACE SEGREGATION;
D O I
10.1016/0040-6090(95)06551-2
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The growth of thin Cu films on an O-precovered Ru(0001) surface has been studied by low-energy ion scattering, Auger electron spectroscopy and low-energy electron diffraction. During deposition of Cu, the majority of oxygen (about 70%) originally on the clean Ru(0001) surface was found to float out onto the top of the surface of the growing film. This displacement process could be observed up to a Cu coverage of 10 monolayers, which appeared to be independent of the deposition rate, the O precoverage and the substrate temperature. The floating O atoms in the top layer have been determined to be a disordered overlayer by measuring the azimuthal scan dependence at grazing incidence.
引用
收藏
页码:72 / 78
页数:7
相关论文
共 21 条
[1]   GROWTH OF ULTRATHIN AU AND AG FILMS ON A MODIFIED RU SURFACE [J].
BLUDAU, H ;
SKOTTKE, M ;
PENNEMANN, B ;
MROZEK, P ;
WANDELT, K .
VACUUM, 1990, 41 (4-6) :1106-1108
[2]   THE ROLE OF ADSORBED GASES IN METAL ON METAL EPITAXY [J].
EGELHOFF, WF ;
STEIGERWALD, DA .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A-VACUUM SURFACES AND FILMS, 1989, 7 (03) :2167-2173
[3]   RELAXATION OF THE CLEAN, CU-COVERED AND H-COVERED RU(0001) SURFACE [J].
FEIBELMAN, PJ ;
HOUSTON, JE ;
DAVIS, HL ;
ONEILL, DG .
SURFACE SCIENCE, 1994, 302 (1-2) :81-92
[4]   A SIMPLE MODEL FOR DEPENDENCE OF AUGER INTENSITIES ON SPECIMEN THICKNESS [J].
GALLON, TE .
SURFACE SCIENCE, 1969, 17 (02) :486-&
[5]   MONOLAYER AND MULTILAYER GROWTH OF CU ON THE RU(0001) SURFACE [J].
HOUSTON, JE ;
PEDEN, CHF ;
BLAIR, DS ;
GOODMAN, DW .
SURFACE SCIENCE, 1986, 167 (2-3) :427-436
[6]   OXIDATION OF CU(111) - 2 NEW OXYGEN INDUCED RECONSTRUCTIONS [J].
JENSEN, F ;
BESENBACHER, F ;
LAEGSGAARD, E ;
STENSGAARD, I .
SURFACE SCIENCE, 1991, 259 (03) :L774-L780
[7]   THIN-FILM GROWTH ON AN O-PRECOVERED RU(0001) SURFACE [J].
KALKI, K ;
SCHICK, M ;
CEBALLOS, G ;
WANDELT, K .
THIN SOLID FILMS, 1993, 228 (1-2) :36-39
[8]   COADSORPTION OF CU AND O2 ON A RU(0001) SURFACE [J].
KALKI, K ;
WANG, H ;
LOHMEIER, M ;
SCHICK, M ;
MILUN, M ;
WANDELT, K .
SURFACE SCIENCE, 1992, 269 :310-315
[9]   ADSORPTION OF OXYGEN AND OXIDATION OF CO ON RUTHENIUM (001) SURFACE [J].
MADEY, TE ;
ENGELHARDT, HA ;
MENZEL, D .
SURFACE SCIENCE, 1975, 48 (02) :304-328
[10]   LOW-ENERGY ION-SCATTERING AT SURFACES [J].
NIEHUS, H ;
HEILAND, W ;
TAGLAUER, E .
SURFACE SCIENCE REPORTS, 1993, 17 (4-5) :213-303