We report on the synthesis of polycrystalline samples of heavy-fermion compound Ce₃PtIn₁₁ and the characterization of their structural and low-temperature physical properties. In good agreement with the data previously obtained for single crystals, the polycrystals also form with a tetragonal crystal structure (space group P4/mmm, Z = 1) with the lattice parameters a = b = 4.6934(7) Å, and c = 16.8306(3) Å. Alike the single crystals, they exhibit two successive antiferromagnetic phase transitions at T_N1 = 2.16 K and T_N2 = 2.0 K, followed by a superconducting transition at T_c = 0.33 K. Our findings open new opportunities for comprehensive investigations of the interplay between magnetism and superconductivity in Ce₃PtIn₁₁ by means of experimental techniques which usually require bulky specimens.

我们报告了重金属化合物Ce ₃ PtIn ₁₁的多晶样品的合成及其结构和低温物理性能的表征。与先前获得的单晶数据 高度吻合，多晶还形成了具有方晶参数a  =  b = 4.6934（7）Å和c  =的四方晶体结构（空间群P 4 / mmm，Z = 1）。16.8306（3）Å。像单晶一样，它们在T _N1  = 2.16 K和T _N2  = 2.0 K时表现出两个连续的反铁磁相变，随后在T1出现超导转变。T _c  = 0.33K。我们的发现为通常需要笨重试样的实验技术为全面研究Ce ₃ PtIn _11中的磁性和超导性之间的相互作用提供了新的机会。