Crystal Structure and Magnetic Ordering of Cr₃Fe₄Ge₄

3d transition metal based intermetallic compounds are interesting as they often host fragile or tunable magnetism [1]. Here we present the growth, in single crystalline form, and physical properties of a new 3d ternary Cr₃Fe₄Ge₄ belonging to the space group P-31c at room temperature. Single crystal x-ray diffraction also revealed that the crystal structure has Cr and Fe antisite mixing. Both temperature dependent resistance and magnetization measurements show a phase transition at ~150 K. The nature of the phase transition will be discussed, as well as the effects of the Cr and Fe occupancy on the low temperature phase.



[1] Paul C. Canfield et al., Rep. Prog. Phys. 2016, 79, 084506.