Top-Seeded Single-Crystal Growth, Structure, and Physical Properties of Polar LiCrP2O7

Single crystals of polar LiCrP2O7 were grown by using a top-seeded solution growth method. In addition to the crystal structure, detailed magnetic measurements reveal anisotropic magnetic behavior with a spin-flop transition. Piezoelectric, polarization, and heat capacity measurements were also taken on the single crystals. Powder second-harmonic generating measurements, using 1064 nm radiation, revealed type 1 phase-matching behavior with an efficiency of approximately 30 × α-SiO2.

本研究通过顶端籽晶溶液生长法成功制备出极性LiCrP₂O₇单晶。除解析其晶体结构外，系统的磁学表征揭示该材料呈现出伴随自旋翻转相变（spin-flop transition）的各向异性磁学行为。此外，研究团队还对该单晶样品开展了压电、极化及热容测试。采用1064 nm激光辐照进行的粉末二次谐波产生（second-harmonic generating）测试结果表明，该材料具备1型相位匹配特性，其转换效率约为α-石英（α-SiO₂）的30倍。