Magnetic Properties of Hexagonal RTIn Rare Earth Intermetallics with Frustration

A. Szytułaa, S. Barana, Ł. Gondekb, A. Arulrajc, B. Penca and N. Stüsserc a M. Smoluchowski Institute of Physics, Jagiellonian University, Reymonta 4, 30-059 Kraków, Poland b Faculty of Physics and Applied Computer Science, AGH University of Science and Technology, al. Mickiewicza 30, 30-059 Kraków, Poland c BENSC Hahn-Meitner Institute, Glienicker Str. 100, D-14109 Berlin, Germany

Full Text PDF

Magnetic properties, including magnetic structure, of some RTIn compounds (R = Tb-Er; T = Cu, Ni, Pd, Pt, Au) with the hexagonal ZrNiAl type crystal structure are reported. Distribution of the rare earth atoms in the basal plane is similar to the kagomé-lattice. Magnetic moments are localized exclusively on the rare earth atoms and form: different types of magnetic ordering. Experimental results are analyzed within the Ruderman-Kittel-Kasuya-Yosida and crystal electric field frames. Monte Carlo simulations, including the J1 and J2 exchange integrals between nearest and next nearest spins and Dzialoshinsky-Moriya interaction, were performed resulting in a number of magnetic phases, some of which are in good agreement with the magnetic ordering determined in the neutron diffraction experiments.

DOI: 10.12693/APhysPolA.117.590 PACS numbers: 71.20.Lp, 75.30.Kz