Nanostructural and local electronic properties of Fe/W(110) correlated by scanning tunneling spectroscopy

被引：41
作者：
Bode, M [1 ]
Pascal, R [1 ]
Dreyer, M [1 ]
Wiesendanger, R [1 ]
机构：
[1] UNIV HAMBURG, MICROSTRUCT RES CTR, D-20355 HAMBURG, GERMANY
来源：
PHYSICAL REVIEW B | 1996年 / 54卷 / 12期
关键词：
D O I：
10.1103/PhysRevB.54.R8385
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Epitaxial Fe(110) films grown on W(110) substrates exhibit, up to the second pseudomorphic monolayer, a peak in dI/dU spectra at 0.2 eV above the Fermi level as measured by scanning tunneling spectroscopy (STS). It is shown directly by STS on nanometer-scale wedges of Fe/W(110) that the density of empty states is diminished wherever the stressed Fe film begins to relax. The change in local differential conductivity can therefore be explained by a stress-induced change of electronic structure for the first two monolayers due to the large misfit between film and substrate.
引用
收藏
页码：R8385 / R8388
页数：4
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