title: Dimensionality crossover in the induced magnetization of Pd layers.
abstract: The magnetic ordering of a series of samples consisting of ultrathin Fe layers embedded in Pd was investigated using the magneto-optical Kerr effect. The samples consisted of a single Fe layer with nominal thickness 0.2≤d(Fe)≤1.6 monolayers sandwiched between two 20 monolayer Pd layers. A dimensionality crossover from two dimensions to three dimensions occurs as d(Fe) is increased from 0.4 to 1.0 monolayers. First-principles calculations were performed in order to determine the magnetic profile, and we used a spin-wave quantum well model for obtaining a qualitative description of the dimensionality crossover. The results clearly prove the existence of a dimensionality crossover in the induced magnetization, opening new routes for addressing the influence of extension on order.
authors.affiliation: Department of Physics, Uppsala University, Box 530, 751 21 Uppsala, Sweden.
authors.forename: Martin
authors.initials: M
authors.lastname: Pärnaste
authors.forename: Moreno
authors.initials: M
authors.lastname: Marcellini
authors.forename: Erik
authors.initials: E
authors.lastname: Holmström
authors.forename: Nicolas
authors.initials: N
authors.lastname: Bock
authors.forename: Jonas
authors.initials: J
authors.lastname: Fransson
authors.forename: Olle
authors.initials: O
authors.lastname: Eriksson
authors.forename: Björgvin
authors.initials: B
authors.lastname: Hjörvarsson