Project supported by Alexandr von Humboldt foundation

"Magnetic structure of Cr overlayers on Fe taking into account roughness and interdiffusion"

Summary

Project aimed to propose a theory for the calculation of the electronic and magnetic structure of low-dimensional Fe/Cr systems with interface roughness and interdiffusion. The theoretical description is performed within the framework of a model Hamiltonian approach. It includes self-consistent calculations of magnetic moments in the Periodic Anderson Model (PAM) by the real space recursion method in the mean field approximation. Theory allows to calculate the non-collinear magnetic structures around interface defects and to build element specific distribution of magnetic moments in the interface region

Results of experimental investigations of Cr overlayers on Fe surfaces by magnetic linear dichroism in the angular distribution and spin resolved core level photoemission have been interpreted on the basis of calculations performed.

Publications

1. 1. V.M.Uzdin, D.Knabben, F.U.Hillebrecht, and E Kisker. Magnetic dichroism and spin-resolved photoemission from rough interfaces. Phys.Rev B59 (1999) 1214.
2. V.M. Uzdin. Quantum-well states in magnetic multilayers and non-Poisson islands formation during epitaxial growth J. Magn. Magn. Mat., 196-197 (1999) 85.
3. V.M.Uzdin, N.S.Yartseva, S.V.Yartsev. Noncollinear magnetism of Fe/Cr films and multilayers, J. Magn. Magn. Mat., 196-197 (1999) 70.
4. V.M.Uzdin, D.Knabben, F.U.Hillebrecht, and E Kisker. Structure of Cr overlayers on Fe surfaces: a new approach for the interpretation of spin-resolved photoemission and Magnetic dichroism magnetic dichroism spectra , J. Magn. Magn. Mat. 198-199 (1999) 680.
5. V.M.Uzdin, A.Mokrani, C.Demangeat, N.S. Yartseva. Noncollinear magnetic structure of Fe/Cr interfaces, J. Magn. Magn. Mat. 198-199 (1999) 471.
6. V.M.Uzdin, N.S.Yartseva. Fe/Cr interface magnetism in the external magnetic field, J. Magn. Magn. Mat. 203 (1999) 280. V.M.Uzdin, N.S.Yartseva, L. Adamowicz. Phase shift of exchange coupling oscillations in magnetic multilayers, J. Magn. Magn. Mat. 203 (1999) 283.
7. S.Uzdin, V.Uzdin, C. Demangeat. Magnetic trimer on non-magnetic substrate: from frustration towards non-collinearity, Europhys.Lett., 47 (1999) 556.
8. V.M.Uzdin, D. Knabben, F.U. Hillebrecht, and E. Kisker. Magnetic dichroism and spin-resolved photoemission from rough interfaces. Phys. Rev. B 59 (1999) 1214.

Abstracts

1. V.M.Uzdin, A.Mokrani, C.Demangeat, N.S.Yartseva. Noncollinear magnetic structure of Fe/Cr interfaces. - Abstract Book of the 3^rd International Symposium on Metallic Multilayers held jointly with the EMRS Symposium on Magnetic Ultrathin Films and Ultrathin Film Nanostructures (MML’98), (June14-19, 1998) Vancouver, British Columbia, Canada, 1998, p.192.
2. V.M.Uzdin, D. Knabben, F.U. Hillebrecht, and E. Kisker. Structure of Cr overlayers on Fe surfaces. A new approach for interpretation of spin-resolved photoemission and magnetic dichroism spectra. - Abstract Book of the 3^rd International Symposium on Metallic Multilayers held jointly with the EMRS Symposium on Magnetic Ultrathin Films and Ultrathin Film Nanostructures (MML’98), (June14-19, 1998) Vancouver, British Columbia, Canada, 1998, p.279.
3. V.M.Uzdin, N.S.Yartseva. Magnetic structure of interfaces in Fe/Cr multilayers. - Abstract Book of the XVI International Symposium "New magnetic materials for magnetoelectronics (NMMM’98)", (June 23-26, 1998), Moscow University, Russia, 1998, p.38-39.
4. V.M.Uzdin, N.S.Yartseva. Fe/Cr interface magnetism in the external magnetic field. – Abstract Book of the Magnetism of Nanostructured Phases Conference (MNP), San Sebastian, Spain, (4-6 September 1998), p. 174.
5. V.M.Uzdin, N.S.Yartseva, L.A.Adamowicz. Phase shift of exchange coupling oscillations in magnetic multilayers. – Abstract Book of the Magnetism of Nanostructured Phases Conference (MNP), San Sebastian, Spain, (4-6 September 1998), p.148.
6. V.M.Uzdin, N.S.Yartseva, S.V.Yartsev. Non-collinear magnetism of Fe/Cr films and multilayers. - Abstract Book of the European Magnetic Materials and Applications Conference (EMMA’98), Zaragoza (SPAIN), (9-12 September 1998), p. 52.
7. V.M. Uzdin. Quantum well states in magnetic multilayers and non-Poisson island formation during epitaxial growth. Abstract Book of the European Magnetic Materials and Applications Conference (EMMA’98), Zaragoza (SPAIN), (9-12 September 1998), p.58.