Neutron Diffraction Study on the Magnetic Structure of Pr6Fe13Sn

Suharyana Suharyana (Physics Department, Faculty of Mathematics and Natural Sciences, Sebelas Maret University Surakarta 57126, Indonesia)
J.M. Cadogan (School of Physics, The University of New South Wales, Kensington NSW 2033, Australia)
A. Rianaris (Physics Department, Faculty of Mathematics and Natural Sciences, Sebelas Maret University Surakarta 57126, Indonesia)

Atom Indonesia Journal
Vol 36, No 1 (2010): April 2010

We have successfully prepared a Pr6Fe13Sn sample by employing argon arc melting. The crystal structure of the sample has been examined by an x-ray diffraction. The x-ray pattern reveals that the sample crystallize in the tetragonal Nd6Fe13Si structure type with space group I4/mcm. Neutron diffraction at 150K performed on a powder sample shows a collinear antiferromagnetic ordering of the Fe and Pr sublattices with the wave vector (0, 0, 1) and an Ip type magnetic lattice with anti-centering translation. The main axis of antiferromagnetism is restricted to the (0 0 1) plane. The average refined Fe moments at 150 K is (2.0±0.4) µB whereas the Pr moments are (2.1±0.4) and (1.9±0.4) µB for the 8f and 16l sites, respectively.  Received: 20 November 2009; Revised: 3 April 2010; Accepted: 20 April 2010