摘要
We have synthesized single crystals of CeZnAl_3,which is a new member of family of Ce-based intermetallics CeTX_3(T=transition metal, X=Si, Ge, Al), crystallizing in the non-centrosymmetric tetragonal BaNiSn_3-type structure. Magnetization,specific heat and resistivity measurements all show that CeZnAl_3 orders magnetically below around 4.4 K. Furthermore,magnetization measurements exhibit a hysteresis loop at low temperatures and fields, indicating the presence of a ferromagnetic component in the magnetic state. This points to a different nature of the magnetism in CeZnAl_3 compared to the other isostructural CeTAl_3 compounds. Resistivity measurements under pressures up to 1.8 GPa show a moderate suppression of the ordering temperature with pressure, suggesting that measurements to higher pressures are required to look for quantum critical behavior.
We have synthesized single crystals of CeZnAl3, which is a new member of family of Ce-based intermetallics CeTX3 （T=transition metal, X=Si, Ge, A1）, crystallizing in the non-centrosymmetric tetragonal BaNiSns-type structure. Magnetization, specific heat and resistivity measurements all show that CeZnAls orders magnetically below around 4.4 K. Furthermore, magnetization measurements exhibit a hysteresis loop at low temperatures and fields, indicating the presence of a ferromagnetic component in the magnetic state. This points to a different nature of the magnetism in CeZnAl3 compared to the other isostructural CeTAl3 compounds. Resistivity measurements under pressures up to 1.8 GPa show a moderate suppression of the ordering temperature with pressure, suggesting that measurements to higher pressures are required to look for quantum critical behavior.
基金
supported by the Science Challenge Project of China(Grant No.TZ2016004)
the National Natural Science Foundation of China(Grant Nos.11474251,11604291,and U1632275)
the National Key R&D Program of China(Grant Nos.2017YFA0303100,and 2016YFA0300202)
