The effect of GaAs(001) substrate roughness on the magnetic properties of epitaxial Fe films

被引：0
|
作者：
S. L. Vysotskii
A. S. Dzhumaliev
G. T. Kazakov
Yu. A. Filimonov
A. Yu. Tsyplin
机构：
[1] Russian Academy of Sciences (Saratov Branch),Institute of Radio Engineering and Electronics
来源：
Technical Physics | 2000年 / 45卷
关键词：
Surface Roughness; GaAs; Magnetic Property; Absorption Line; Ferromagnetic Resonance;
D O I：
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中图分类号：
学科分类号：
摘要：
The effect of GaAs(001) surface roughness on the magnetic properties of MBE-grown Fe films having a thickness t in the interval from 12 to 140 Å is investigated by the ferromagnetic resonance method. The films were deposited at room temperature with rates of 9 and 3 Å/min. For films grown on substrates with the rms deviation of the roughness σ≈10 and 30 Å, the spectrum is essentially dependent on the relationship between t and σ. At t≤σ and t≥3σ, a single absorption line is observed, whereas at σ≤t≤3σ, two absorption lines are present. These features of the spectra are related to the island growth of the films and the influence of roughness on island coalescence.
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页码：1281 / 1287
页数：6
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