title: Propagation of Nd magnetic phases in Nd/Sm(001) superlattices.
abstract: The propagation of Nd long range magnetic order in the hexagonal and cubic sublattices has been investigated in double hexagonal compact Nd/Sm(001) superlattices by resonant x-ray magnetic scattering at the Nd L(2) absorption edge. For a superlattice with 3.7 nm thick Sm layers, the magnetic structure of the hexagonal sublattice propagates coherently through several bilayers, whereas the order in the cubic sublattice remains confined to single Nd blocks. For a superlattice with 1.4 nm thick Sm layers, the magnetic structures of both sublattices appear to propagate coherently through the superlattice. This is the first observation (i) of the long range coherent propagation of Nd order on the cubic sites between Nd blocks and (ii) of a different thickness dependence of the propagation of the Nd magnetic phases associated with the hexagonal and cubic sublattices. The propagation of the Nd magnetic order through Sm is interpreted in terms of generalized susceptibility of the Nd conduction electrons.
authors.affiliation: Laboratoire de Physique des Matériaux, Université H Poincaré-Nancy I, BP 239, 54506 Vandoeuvre les Nancy cedex, France. Universidade Federal do Rio de Janeiro, Instituto de Física, 21945-970, Rio de Janeiro-RJ, Brazil.
authors.forename: S
authors.initials: S
authors.lastname: Soriano
authors.forename: C
authors.initials: C
authors.lastname: Dufour
authors.forename: K
authors.initials: K
authors.lastname: Dumesnil
authors.forename: A
authors.initials: A
authors.lastname: Stunault