Auger electron spectroscopy analysis of interface roughness of Fe/Cr bilayers

被引：2

作者：

Marualek, M. ^{[1
]}

Tokman, V. ^{[2
]}

Protsenko, S. ^{[3
]}

Kac, M. ^{[1
]}

Polit, A. ^{[1
]}

Zabila, Y. ^{[1
]}

Marszalek, K. ^{[4
]}

机构：

[1] Henryk Niewodniczanski Inst Nucl Phys PAN, PL-31342 Krakow, Poland

[2] Natl Acad Sci Ukraine, Inst Appl Phys, UA-40030 Sumy, Ukraine

[3] Sumy State Univ, UA-40007 Sumy, Ukraine

[4] AGH Univ Sci & Technol, Dept Elect, PL-30059 Krakow, Poland

来源：

VACUUM | 2008年 / 82卷 / 10期

关键词：

Auger electron spectroscopy; Fe/Cr bilayers; Cr/Fe bilayers; thin film growth; interface roughness;

D O I：

10.1016/j.vacuum.2008.01.015

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work we investigate the surface and interfacial properties of Fe/Cr and Cr/Fe bilayers before and after annealing using Auger electron spectroscopy (AES). The roughness of the interface is also determined with the X-ray reflection method. The fitted values of inelastic mean free path lambda(Cr) (in) (Fe) reproduce the calculated value for Cr in Fe well, whereas the values of lambda(Fe in Cr) are significantly larger than the calculated ones, suggesting mutual segregation of atoms during growth. The low-energy range Auger spectra demonstrated that the MNN lines of Cr covered with Fe and Fe covered with Cr disappear after the deposition of 1 nm overlayer, this being an indication of continuous deposited film, but not excluding mixing at interfaces. The results of X-ray reflectometry measurements, which give the values of Fe/Cr and Cr/Fe roughness, are in accordance with this observation. The LMM Auger spectra of annealed samples showed that at the largest applied temperature, Cr diffuses into Fe, but the reverse effect of Fe diffusion into Cr is not observed. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1051 / 1056

页数：6

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