Novel ternary germanide with high palladium content CePd12Ge2

The crystal structure of a novel CePcl(12)Ge(2) intermetallic was determined and refined from single-crystal X-ray diffraction data. The compound crystallizes in a tetragonal structure of a new type: space group I4(1)md (No. 109), cell parameters a = b = 12.0819(9) angstrom, c = 6.4554(7) angstrom, V = 942.3(2) angstrom(3), Z = 4. In a crystallographic unit cell, Ce atoms occupy one Wyckoff site (4a). Two (16c) sites and two (8b) sites are filled with Pd atoms. One more position (8b) is occupied by Ge atoms. An analysis of the features of the crystal structure revealed its relationship with the known binary type BaCd11. Magnetic and transport properties of CePd12Ge2 were studied. The results obtained show no signs of long-range magnetic ordering down to 1.7 K. However some hints on magnetic ordering below T approximate to 1.7 K may be proposed from magnetoresistance data. We also register low temperature logarithmic rise of resistivity indicating the main role of Kondo interactions in CePd12Ge2.

Automated summary

The crystal structure of a novel CePcl(12)Ge(2) intermetallic compound was determined and refined using single-crystal X-ray diffraction data. The compound exhibits a tetragonal structure of a new type and has a relationship with the known binary compound BaCd11. The magnetic and transport properties of CePd12Ge2 were studied, showing no signs of long-range magnetic ordering below 1.7 K. However, there are hints of magnetic ordering below this temperature based on magnetoresistance data, and a low temperature logarithmic rise in resistivity indicates the important role of Kondo interactions in CePd12Ge2.