Magnetic properties of RNi/sub 4/B (R=rare earth metal)

Abstract

We present AC-, DC-susceptibility and magnetization measurements of the RNi/sub 4/B series from which we determine the paramagnetic properties of RNi/sub 4/B (R=Y, La, Ce). The ferromagnetic order of RNi/sub 4/B (R=magnetic rare earth) is similar to those of the RNi/sub 5/ series with the exception of SmNi/sub 4/B and TbNi/sub 4/B where for the former the highest ordering temperature in this series (39 K) together with a spin reorientation at 31.7 K occurs.< <ETX xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">&gt;</ETX>