GROWTH OF ULTRATHIN IRON FILMS ON CU(001) - AN ION-SCATTERING SPECTROSCOPY STUDY

被引:77
作者
DETZEL, T
MEMMEL, N
FAUSTER, T
机构
[1] Max-Planck-lnstitut für Plasmaphysik, Euratom Association
关键词
D O I
10.1016/0039-6028(93)90316-C
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
Low-energy ion scattering has been applied to study the pseudomorphic growth of ultrathin fcc iron films on a Cu(001) single-crystal surface. At all coverages - even as low as 0.1 monolayer (ML) - iron is found to about equal amounts in both the surface and the first subsurface layer, since pat of the iron atoms are incorporated into the original copper surface. This is particular evident for the 0.1 ML film, which does not exhibit any iron defects, such as steps or adatoms. Instead copper surface defects become visible upon iron deposition. Near 2 ML the substrate is covered for the most part by a relatively smooth bilayer indicating the coalescence of the iron islands. Up to a film thickness of around 6 ML the surface defect density of the iron layers decreases with increasing coverage and raises again at larger coverages. Above approximately 10 ML the pseudomorphic fcc growth breaks down and domains of bcc iron with (110) orientation are formed.
引用
收藏
页码:227 / 238
页数:12
相关论文
共 24 条
[1]   MAGNETIZATION DIRECTION SWITCHING IN FE/CU(100) EPITAXIAL-FILMS - TEMPERATURE AND THICKNESS DEPENDENCE [J].
ALLENSPACH, R ;
BISCHOF, A .
PHYSICAL REVIEW LETTERS, 1992, 69 (23) :3385-3388
[2]   QUANTITATIVE SURFACE ATOMIC GEOMETRY AND TWO-DIMENSIONAL SURFACE ELECTRON-DISTRIBUTION ANALYSIS BY A NEW TECHNIQUE IN LOW-ENERGY ION-SCATTERING [J].
AONO, M ;
OSHIMA, C ;
ZAIMA, S ;
OTANI, S ;
ISHIZAWA, Y .
JAPANESE JOURNAL OF APPLIED PHYSICS, 1981, 20 (11) :L829-L832
[3]   ADSORBED LAYER AND THIN-FILM GROWTH MODES MONITORED BY AUGER-ELECTRON SPECTROSCOPY [J].
ARGILE, C ;
RHEAD, GE .
SURFACE SCIENCE REPORTS, 1989, 10 (6-7) :277-356
[4]   GROWTH AND THERMAL-PROPERTIES OF FCC IRON FILMS ON CU(100) [J].
ARNOTT, M ;
MCCASH, EM ;
ALLISON, W .
SURFACE SCIENCE, 1992, 269 (1 -3 pt B) :724-730
[5]   SCANNING-TUNNELING-MICROSCOPY ON THE GROWTH OF FE FILMS ON CU(100) [J].
BRODDE, A ;
NEDDERMEYER, H .
SURFACE SCIENCE, 1993, 287 :988-994
[6]   NUCLEATION AND GROWTH OF ULTRATHIN FE AND AU FILMS ON CU(100) STUDIED BY SCANNING TUNNELING MICROSCOPY [J].
CHAMBLISS, DD ;
WILSON, RJ ;
CHIANG, S .
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 1992, 10 (04) :1993-1998
[7]   ADDED-ROW GROWTH OF THE (2X1)O-CU(110) RECONSTRUCTION [J].
DURR, H ;
SCHNEIDER, R ;
FAUSTER, T .
PHYSICAL REVIEW B, 1991, 43 (02) :1802-1804
[8]   SURFACE GEOMETRY DETERMINATION BY LARGE-ANGLE ION-SCATTERING [J].
FAUSTER, T .
VACUUM, 1988, 38 (02) :129-142
[9]   DIFFUSION PATH FOR AN AL ADATOM ON AL(001) [J].
FEIBELMAN, PJ .
PHYSICAL REVIEW LETTERS, 1990, 65 (06) :729-732
[10]   SPIN ANISOTROPY OF FERROMAGNETIC SLABS AND OVERLAYERS [J].
GAY, JG ;
RICHTER, R .
JOURNAL OF APPLIED PHYSICS, 1987, 61 (08) :3362-3365