IUVSTA 15th International Vacuum Congress (IVC-15), AVS 48th International Symposium (AVS-48), 11th International Conference on Solid Surfaces (ICSS-11)
    Magnetic Interfaces and Nanostructures Friday Sessions
       Session MI+SS-FrM

Paper MI+SS-FrM9
The Structure of Ferromagnetic Ultrathin Fe Films on Cu(100) is not fcc

Friday, November 2, 2001, 11:00 am, Room 110

Session: Magnetic Thin Films and Surfaces II
Presenter: P. Varga, TU Vienna, Austria
Authors: A. Biedermann, TU Vienna, Austria
R. Tscheliessnig, TU Vienna, Austria
M. Schmid, TU Vienna, Austria
P. Varga, TU Vienna, Austria
Correspondent: Click to Email
Ultrathin Fe films on Cu(100) are an ideal model system to study martensitic fcc-bcc phase transitions in Fe.@footnote 1@ Ultrathin Fe films on Cu are also distinguished by the appearance of a novel ferromagnetic phase which showed distinct fcc-like features in p revious electron diffraction experiments. By means of scanning tunneling microscopy we were able to reveal this phase as a novel "nanomartensitic" phase with the Fe atoms forming localy a bcc like structure @footnote 2@. This shows that the assumption of a ferromagnetic fcc phase is not necessary to explain the ferromagnetism observed in these films. @FootnoteText@ @footnote 1@ A. Biedermann, M. Schmid, and P. Varga, Phys. Rev. Lett. 86 (2001) 464-67 @footnote 2@ A. Biedermann, Rupert Tscheließnig,M. Schmid, and P. Varga, Phys. Rev. Lett., submitted