MAGNETIC PROPERTIES AND CRYSTAL STRUCTURE OF ErRh311B2
J Bernhard (a,b), I Higashi (c), P Granberg (d), L-E Tergenius (e), T Lundström (e), T Shishido (f), A Ruokolainen (b), H Takei (g) and T Fukuda (f)
(a) Dept of Electrical Engineering, University College of Falun/Borlänge, S-781 10 Borlänge, Sweden;
(b) Materialscentre - HTM, University College of Falun/Borlänge, S-781 27 Borlänge, Sweden;
(c)The Institute of Physical and Chemical Research (RIKEN), Wako-shi, Saitama, 351-01, Japan;
(d) Institute of Technology, Uppsala Univer-sity, S-751 21 Uppsala, Sweden;
(e) Institute of Chemistry, Uppsala University, S-751 21 Uppsala, Sweden;
(f)The Institute for Materials Research, Tohoku University, Sendai, 980, Japan;
(g)The Insti-tute for Solid State Physics, The University of Tokyo, Roppongi, Minatoku, Tokyo, 106, Japan
ABSTRACT
Single crystals of ErRh311B2 were grown using the high-temperature solution method. The crystal structure was determined and refined with powder technique. The compound crystallizes in the space group C2/m with the cell dimensions a = 5,3561(4) Å, b = 9,2819(7) Å, c = 3,1013(3) Å and beta = 90,898(8)°. The final unweighted profile R-value is 6,4% and the conventional Bragg R-value 4,8%. Magnetic measure-ments indicates ferromagnetic order below a TC = 27 K, but the magnetic data show conside-rable anisotropy. The highly anisotropic magnetic properties are probably due to the Er-chains along the c-axis.