Title :
Magnetic and magnetoelastic studies of single crystal Tb0.6 Dy0.4Zn at low temperatures
Author :
Cullen, J.R. ; Teter, J.P. ; Wun-Fogle, M. ; Restorff, J.B. ; Clark, A.E.
Author_Institution :
Carderock Div., Naval Surface Warfare Center, West Bethesda, MD, USA
fDate :
9/1/1997 12:00:00 AM
Abstract :
The alloy series Tb1-xDyxZn, x⩽0.6, has been shown to undergo easy-axis reorientations at low temperatures. In this paper results of magnetization on single crystal disks of Tb0.6Dy0.4Zn are reported, Maxima in the magnetization as much as 15° from the ⟨100⟩ axes were found below TR≅20 K. Magnetostrictions of 5×10-3 were measured at 77 K on single crystal rods. Magnetization versus field curves under a series of compressive stresses have verified the highly magnetoelastic nature of this alloy. The non-principal magnetization orientations are discussed on a phenomenological model which includes an eighth-order anisotropy term
Keywords :
dysprosium alloys; ferromagnetic materials; magnetic anisotropy; magnetisation; magnetocaloric effects; magnetoelastic effects; magnetostriction; terbium alloys; zinc alloys; 20 K; 77 K; Tb0.6Dy0.4Zn; Tb1-xDyxZn; compressive stresses; easy-axis reorientations; eighth-order anisotropy term; field curves; highly magnetoelastic nature; low temperatures; magnetic studies; magnetization; magnetoelastic studies; magnetostrictions; nonprincipal magnetization orientations; phenomenological model; single crystal Tb0.6Dy0.4Zn; single crystal disks; single crystal rods; Compressive stress; Magnetic anisotropy; Magnetic field measurement; Magnetization; Magnetoelasticity; Magnetostriction; Perpendicular magnetic anisotropy; Strain measurement; Temperature measurement; Zinc;
Journal_Title :
Magnetics, IEEE Transactions on
