Magnetic behaviour and structure change of GdB6single crystals at low temperatures

Publisher Website
Google Scholar
Abstract
Magnetic properties of GdB6 single crystals with the Neel temperature of 15.4K have been studied through magnetic torque and susceptibility measurements. A phase transition with hysteresis at about 6K which is sample dependent has been found in the temperature dependence of the torque amplitude and electrical resistivity. The low-temperature phase has three equivalent magnetic domains with collinear antiferromagnetic spins along three equivalent (100) axes. In the high-temperature phase, the magnetic field required to move the spins within the plane in which they lie is very small but the field required to move them in the direction perpendicular to this plane may be quite large. This result strongly suggests that the crystal in the high-temperature phase has tetragonal symmetry although GdB6 is cubic at room temperature.

This publication has 11 references indexed in Scilit: