Large anomalous Hall conductivity in quasi-one-dimensional geometrically frustrated metal Pr₃MnBi₅

We present the fabrication and experimental investigation of the quasi-one-dimensional geometrically frustrated metal Pr₃MnBi₅ single crystals. Magnetic measurement shows that the crystals exhibit two distinct ferromagnetic phase transitions at T_C1 = 26 K and T_C2 = 31 K, accompanied by metamagnetic transitions and strong magnetic anisotropy. Large unsaturated linear positive MR can be observed at low temperatures with different crystal orientations. Additionally, we observed a large anomalous Hall conductivity that reaches up to 911 Ω^-1 cm^-1 in Pr₃MnBi₅, and the anomalous Hall angle reaching up to 15% at T_C1 = 26 K. These results provide valuable insights into magnetic properties and pave the way for further research into theanomalous Hall effect in geometrically low-dimensional frustrated metals.