Eur. Phys. J. B 62, 123-128 (2008)
https://doi.org/10.1140/epjb/e2008-00146-5

Magnetization and specific heat of DyFe₃(BO₃)₄ single crystal

¹ Low Temperature Physics Department, Moscow State University, 119991 Moscow, Russia
² Leibniz Institute for Solid State and Materials Research, IFW Dresden, 01171 Dresden, Germany
³ L.V. Kirensky Institute of Physics, Siberian Branch of RAS, Krasnoyarsk, 660036, Russia

Corresponding author: ^a eapopova@yahoo.com

Received: 12 November 2007
Revised: 18 February 2008
Published online: 11 April 2008

Abstract

We present thermodynamic and magnetic studies of single crystalline DyFe₃(BO₃)₄. The data indicate an easy axis antiferromagnetic order below T_N~ 38 K which we attribute to the Fe subsystem. The Dy subsystem remains paramagnetic down to the lowest investigated temperatures of 2 K, but it is polarized by the Fe spins due to a f-d interaction. External magnetic field leads to a spin-flop transition in the iron subsystem as well as to superposed magnetization in the Dy subsystem. The repopulation of two low-lying Kramers doublets in Dy³⁺ ions results in well defined Schottky anomalies in specific heat and magnetization.