Litzbarski L S, Klimczuk T, Winiarski M J
Faculty of Applied Physics and Mathematics and Center for Future Materials, Gdansk University of Technology, Narutowicza 11/12, 80-233 Gdansk, Poland.
J Phys Condens Matter. 2020 May 20;32(22):225706. doi: 10.1088/1361-648X/ab73a4.
New intermetallic compounds TbPdGe and DyPdGe have been synthesized using the arc-melting method. The crystallographic structure and magnetic, electronic transport, and thermal properties are reported. The crystal structure obtained from powder x-ray diffraction analysis suggests that these compounds crystallize in the AlB-type structure (space group P6/mmm, no. 191) with lattice parameters a = 4.228 53(5)/4.230 54 (2) Å and c = 3.942 25(9)/3.945 52(5) Å for the compounds with Tb and Dy respectively. The ac and dc magnetic susceptibility studies reveal spin-glass like behavior, with freezing temperature T = 10.5 K for TbPdGe and 4.5 K for DyPdGe. These data are in good agreement with the heat capacity measurements.
采用电弧熔炼法合成了新型金属间化合物TbPdGe和DyPdGe。报道了它们的晶体结构以及磁、电子输运和热性质。粉末X射线衍射分析得到的晶体结构表明，这些化合物结晶为AlB型结构（空间群P6/mmm，编号191），其中含Tb化合物的晶格参数a = 4.228 53(5)/4.230 54 (2) Å，c = 3.942 25(9)/3.945 52(5) Å；含Dy化合物的晶格参数a = 4.228 53(5)/4.230 54 (2) Å，c = 3.942 25(9)/3.945 52(5) Å。交流和直流磁化率研究揭示了类似自旋玻璃的行为，TbPdGe的冻结温度T = 10.5 K，DyPdGe的冻结温度T = 4.5 K。这些数据与热容测量结果吻合良好。
