Selective Study of Fe Atoms at the Interfaces of an Fe/Ir(100) Superlattice by means of Diffraction Anomalous Fine Structure

H. Renevier; J. L. Hodeau; P. Wolfers; S. Andrieu; J. Weigelt; R. Frahm

doi:10.1103/PhysRevLett.78.2775

Selective Study of Fe Atoms at the Interfaces of an Fe/Ir(100) Superlattice by means of Diffraction Anomalous Fine Structure

H. Renevier, J. L. Hodeau, P. Wolfers, S. Andrieu, J. Weigelt, and R. Frahm

Phys. Rev. Lett. 78, 2775 – Published 7 April 1997

Abstract

Studies of superlattices are important in order to synthesize 3D metals in a new crystalline structure which may exhibit exotic magnetic properties. The challenge is to relate these properties to the details of the chemical gradient and the local strain. We report the use of diffraction anomalous fine structure (DAFS) spectroscopy and a crystallographic analysis of the DAFS data to separate the x-ray-absorption fine structure (XAFS)-like information about Fe atoms located at different crystallographic sites of an Fe/Ir(100) superlattice. We obtained the first and the second (in the plane of growth) nearest-neighbor distances of Fe atoms at the Ir-Fe interface.

Received 26 August 1996

DOI:https://doi.org/10.1103/PhysRevLett.78.2775

Authors & Affiliations

H. Renevier^1,2, J. L. Hodeau^1,3, P. Wolfers¹, S. Andrieu⁴, J. Weigelt⁵, and R. Frahm⁵

¹Laboratoire de Cristallographie, Centre National de la Recherche Scientifique, B.P. 166, 38042 Grenoble Cedex 09, France
²Université Joseph Fourier, B.P. 53, 38041 Grenoble Cedex 09, France
³European Synchrotron Radiation Facility, B.P. 220, 380423 Grenoble Cedex, France
⁴LMPSM, URA 155, Université de Nancy I, B.P. 239, 54506 Vandoeuvre, Nancy Cedex, France
⁵Hamburger Synchrotron Strahlungslabor HASYLAB am DESY, Notkestrasse 85, 22603 Hamburg, Germany