title: Magnetic critical scattering in solid Co80Pd20.
abstract: Using small-angle neutron scattering combined with a containerless aerodynamic levitation technique for high temperatures, we have measured the temperature dependence of the correlation length ξ of near-critical magnetic fluctuations in the solid phase of the completely miscible fcc alloy Co80Pd20. A fit to our data yields a critical exponent ν = 0.76 ± 0.05 for the divergence of ξ(T) above the ferromagnetic transition temperature Tc. This value of ν is consistent with the prediction of the three-dimensional Heisenberg model for magnetic critical scattering.
authors.affiliation: Institut Laue-Langevin, 6 rue Jules Horowitz, BP 156, 38042 Grenoble cedex 9, France.
authors.forename: H E
authors.initials: HE
authors.lastname: Fischer
authors.forename: L
authors.initials: L
authors.lastname: Hennet
authors.forename: V
authors.initials: V
authors.lastname: Cristiglio
authors.forename: D
authors.initials: D
authors.lastname: Zanghi
authors.forename: I
authors.initials: I
authors.lastname: Pozdnyakova
authors.forename: R P
authors.initials: RP
authors.lastname: May
authors.forename: D L
authors.initials: DL
authors.lastname: Price
authors.forename: S
authors.initials: S
authors.lastname: Wood