Single crystal growth of new heavy fermion compounds CePt2In7 and Ce2PtIn8

Abstract

We succeeded in growing single crystals of Ce2PtIn8 and CePt2In7 by In selfflux method. We performed the single crystal X-ray diffraction and determined the lattice parameters and atomic positions. We also obtained cubic-like crystals with the typical size of 1×1×1mm3, in which Ce2PtIn8 thin layer grows on CeIn3 single crystal surface. This structure implies a peritectic growth of Ce2PtIn8 on most likely the CeIn3 (100) surface. The electrical resistivity of CePt2In7 shows sharp kink at the Neel temperature of 5.5 K, and exhibits the Fermi liquid behavior.