Magnetic properties of the rare-earth ferroborate SmFe3(BO3)(4)
Журнал экспериментальной и теоретической физики — импакт фактор: 0,921
JOURNAL OF EXPERIMENTAL AND THEORETICAL PHYSICS Volume: 116 Issue: 5 Pages: 800-805
Abstract: The magnetic properties of trigonal antiferromagnet SmFe3(BO3)4 are studied experimentally and theoretically. The measured characteristics are considered in terms of a theoretical approach based on the molecular field approximation and a crystal field model for a rare-earth ion. The temperature dependences of the initial magnetic susceptibility and the field and temperature dependences of magnetization in fields up to 5 T are described, and the anomaly in the magnetization curve for B ⊥ c near 1 T, which points to a first-order phase transition, is analyzed.