Geldart, D. J. W.De'Bell, K.Cook, J.Laubitz, M. J.2013-06-192013-06-191987-06/01Geldart, D. J. W., K. De'Bell, J. Cook, and M. J. Laubitz. 1987. "Dipole-dipole interactions and the critical resistivity of gadolinium." Physical Review B (Condensed Matter) 35(16): 8876-9. Copyright © 1987 American Physical Society.0163-1829http://dx.doi.org/10.1103/PhysRevB.35.8876http://hdl.handle.net/10222/25090Results are presented for the electrical resistivity of a c-axis single crystal of high-purity gadolinium metal in the immediate vicinity of the Curie temperature. Numerical analysis reveals that the data are not well described by the usual power laws in (T-Tc)/Tc but tend to exhibit a change in effective slope at Tc which can be described by classical Landau theory with logarithmic corrections. This is interpreted in terms of the dipole-dipole interactions, which are shown to become important at about 1 K above Tc. The authors suggest that gadolinium is a uniaxial dipolar ferromagnet in the asymptotic critical-behaviour regimeCurie temperatureElectrical conductivity of crystalline metals and alloysFerromagnetic properties of substancesGadoliniumarticle35168876