Moscow State Institute of Electronics and Mathematics (Technical University), 109028 Moscow, Russia.
J Phys Condens Matter. 2010 Mar 24;22(11):116006. doi: 10.1088/0953-8984/22/11/116006. Epub 2010 Mar 5.
The present paper reports on the specific heat and magnetization of the YFe(3)(BO(3))(4) and ErFe(3)(BO(3))(4) single crystals. In both compounds, antiferromagnetic order of the iron spins evolves at T(N) = 38 K. The experimental data suggest that the magnetic moments are in the basal plane of the trigonal crystal for both compounds. In the magnetically ordered state the crystal is subdivided into three types of domains, the magnetic moments of the Fe(3+) ions being aligned along the a axis within each domain. For ErFe(3)(BO(3))(4), two non-equivalent magnetic positions of the Er(3+) ions in each domain are observed.
本文报道了 YFe(3)(BO(3))(4) 和 ErFe(3)(BO(3))(4) 单晶的比热和磁化率。在这两种化合物中，铁自旋的反铁磁有序在 T(N) = 38 K 处出现。实验数据表明，两种化合物的磁矩都在三角晶体的基面中。在有序磁态下，晶体被细分为三种畴，Fe(3+)离子的磁矩在每个畴内沿 a 轴排列。对于 ErFe(3)(BO(3))(4)，在每个畴中观察到 Er(3+)离子的两个非等效磁位。
