The transport properties of ferromagnetic compound CeMn₂Ge₂ have been systematically studied by magnetic resistivity measurements. Strikingly, it has been found that CeMn₂Ge₂ compound displays a giant topological Hall effect (THE) about 0.8 μΩ·cm with 0.45 T magnetic field under 220 k. THE appears in a wide temperature range between 70 and 310 K in a magnetic field region, and could even appear in a zero magnetic field at room temperature. The magnetoresistance curves present gradual change with kinks which have relation to magnetic transitions. Moreover, these results show that topologically protected spin texture may exist in CeMn₂Ge₂ ferromagnetic compound.

_{铁磁性化合物CeMn 2} Ge ₂的输运性质已通过磁电阻率测量进行了系统研究。引人注目的是，已经发现CeMn ₂ Ge ₂化合物在220 k下在0.45 T磁场下表现出约0.8 μΩ·cm的巨型拓扑霍尔效应（THE）。THE出现在70~310 K的宽温度范围内的磁场区域，甚至可以出现在室温下的零磁场中。磁阻曲线随着与磁跃迁有关的扭结呈现渐变。此外，这些结果表明拓扑保护的自旋织构可能存在于CeMn ₂ Ge ₂铁磁化合物中。