Structure and magnetism of Fe thin films grown on Rh(001) studied by spin-resolved photoelectron spectroscopy

Details Structure and magnetism of Fe thin films grown on Rh(001) studied by spin-resolved photoelectron spectroscopy Structure and magnetism of Fe thin films grown on Rh(001) studied by spin-resolved photoelectron spectroscopy

Jun 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aipc..570.1003h&link_type=abstract

The fourteenth international spin physics symposium, SPIN2000. AIP Conference Proceedings, Volume 570, pp. 1003-1005 (2001).

Physics

Surface Magnetism, Fe And Its Alloys, Spin Arrangements In Magnetically Ordered Materials, Electron Sources, Polarized Beams

Scientific paper

Bulk Fe is known to be a bcc structure at room temperature and ferromagnetic below 920 K. On the other hand Fe films grown on non-magnetic substrates show a variety of structures and magnetism depending on the degree of the lattice constant (a0) difference between substrate and a bulk bcc Fe (a0=2.87 Å). On Au(001) (a0=4.07 Å) and Ag(001), Fe films grow in bcc structure and are ferromagnetic due to the small lattice mismatch to the Fe(110). On Cu(001) and Co(001), Fe films thinner than 5 ML reveal a face centred tetragonal (fct) structure and ferromagnetism, while in 6-10 ML region Fe films show fcc structure and only the topmost few layers were found to be ferromagnetic. The origin of this complicated magnetic behavior has been considered due to the lattice mismatch at the interface and investigated by a first principle calculation of the total energy and magnetic moments [1]. In this report, we present the structural and electronic properties of the Fe films epitaxially grown on a Rh(001) surface. .

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