Magnetization study of interlayer exchange in semiconductor EuS-PbS ferromagnetic wedge multilayers

Leszek Kowalczyk 1Victor Osinniy 1Marina Chernyshova 1Piotr Dziawa 1Tomasz Story 1Coen J. Smits 2Henk J. Swagten 2Alexander Y. Sipatov 3Valentin V. Volobuev 3

1. Polish Academy of Sciences, Institute of Physics, al. Lotników 32/46, Warszawa 02-668, Poland
2. Eindhoven University of Technology, Department of Physics, Eindhoven, Netherlands
3. National Technical University"Kharkov Polytechnical Institute", 21 Frunze str., Kharkov 61002, Ukraine


In EuS-PbS semiconductor multilayers grown epitaxially along [001] crystal direction on either PbS or KCl substrates the layers of EuS (a model Heisenberg ferromagnet) are antiferromagnetically coupled via diamagnetic PbS spacer layer. For the experimental analysis of this effect neutron diffraction and reflectivity as well as SQUID magnetometry methods were applied to study the spacer thickness and temperature dependence of the coupling mechanism. In this work we present the analysis of the interlayer coupling in EuS-PbS multilayer wedge structures grown on KCl (001) substrates with the wedges covering the PbS spacer layer thickness from 6 to 0.3 nm. The structural parameters of the wedges were examined by the x-ray diffraction analysis of the EuS-PbS superlattice period. We discuss the measurements of magnetic hysteresis loops of EuS-PbS structures performed by both SQUID (for small terminal parts of the wedge) and MOKE (magneto-optical analysis along the wedge) magnetometry. The strong changes of magnetic remanence, coercive field and saturation field are observed for EuS-PbS structures with the PbS spacer thinner than about 1.5 nm. To model the magnetic field and temperature dependence of the magnetization of these structures, the temperature dependent interlayer exchange, in-plane anisotropy and Zeeman energy contributions are considered.

Work supported by KBN research project PBZ-KBN-044/P03/2001.

Legal notice
  • Legal notice:

    Copyright (c) Pielaszek Research, all rights reserved.
    The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
    In every case, proper references including Author(s) name(s) and URL of this webpage: must be provided.


Related papers
  1. Spin texture of topological crystalline insulator surface states in Pb1-xSnxSe 
  2. Magnetic anisotropy in ferromagnetic (Ge,Mn)Te epitaxial layers with varying Mn content
  3. Low-temperature expansion of metastable Pb1-xCdxTe solid solution
  4. X-ray photoemission from CdTe/PbTe/CdTe nanostructure in normal and grazing-incidence modes
  5. Ferromagnetic transition induced by re-crystallization of amorphous (Ge,Mn)Te layers
  6. ZnO thin films for organic/inorganic heterojunctions
  7. Gd atoms on Si (111) surface – AFM and photoemission study
  8. Mn 3d electrons in the valence band of Mn/Ge0.9Mn0.1Te- a resonant photoemission study
  9. Influence of high temperature annealing on the local atomic structure around Mn atoms and magnetic properties of (Ga,Mn)As layers
  10. Water absorption by epitaxial LaNiO3-x thin films
  11. Effect of annealing on electrical properties of low temperature ZnO films
  12. Ferromagnetism in ZnO:Mn thin films deposited by PEMOCVD
  13. Ferromagnetic (Eu,Gd)Te/PbTe semiconductor heterostructures
  14. Magnetic stripe domains in Fe/Fe-N multilayers
  15. Analysis of stress in buried Ge layers by means of X-ray fluorescence
  16. Structural and optical characterization of epitaxial layers of CdTe/PbTe grown on BaF2 (111) substrates
  17. Influence of hydrogen adsorption on magnetic properties of Fe films and multilayers

Presentation: poster at E-MRS Fall Meeting 2005, Symposium D, by Leszek Kowalczyk
See On-line Journal of E-MRS Fall Meeting 2005

Submitted: 2005-06-01 09:50
Revised:   2009-06-07 00:44
© 1998-2021 pielaszek research, all rights reserved Powered by the Conference Engine