Single crystal growth and magnetic properties of pseudo-kagome lattice RRhPb (R = Nd, Sm and Gd)

[摘要] We have synthesized single crystals of RRhPb (R = Nd, Sm and Gd) with hexagonal ZrNiAl-type structure from Pb-flux. The crystal structures were confirmed by powder X-ray diffraction and the compositions were determined by electron-probe micro-analyzer (EPMA). We have measured their magnetic properties of RRhPb. It is found that the RRhPb (R = Nd, Sm and Gd) are antiferromagnets with two successive phase transitions with magnetic ordering occuring at TN1= 3.6 K and TN2= 3.4 K in NdRhPb, TN1= 11.5 K and TN2= 8.3 K in SmRhPb and TN1= 17.6 K and TN2= 15.3 K in GdRhPb.

[发布机构] Department of Engineering Physics Electronics and Mechanics, Graduate School of Engineering, Nagoya Institute of Technology, Aichi, Nagoya; 466-8555, Japan^1;Advanced Science Research Center, Japan Atomic Energy Agency, Ibaraki, Tokai; 319-1195, Japan^2;Department of Physics and Astronomy, University of California, Irvine; CA; 92697, United States^3

[关键词] Antiferromagnets;Electron probe micro analyzer;Kagome lattice;Pb flux;Powder X ray diffraction;ZrNiAl-type structure