Magnetotransport properties in a noncentrosymmetric itinerant magnet Cr${}_{11}$Ge${}_{19}$

Abstract

We have investigated anomalous Hall effect and magnetoresistance in a noncentrosymmetric itinerant magnet Cr${}_{11}$Ge${}_{19}$. While the temperature- and magnetic-field-dependent anomalous Hall conductivity is just proportional to the magnetization above 30 K, it is more enhanced in the lower temperature region. The magnitude of negative magnetoresistance begins to increase toward low temperature around 30 K. The anisotropic magnetoresistance emerges at similar temperature. Because there is no anomaly in the temperature dependence of magnetization around 30 K, the origin of these observations in transport properties is ascribed to some electronic structure with the energy scale of 30 K. We speculate this is caused by the spin splitting due to breaking of spatial inversion symmetry.

arXiv comment5 pages, 5 figures

References in corpus (8)

• Skyrmion Lattice in a Chiral Magnet
• Anomalous Hall effect
• Topological Hall effect in the A-phase of MnSi
• Proper Scaling of the Anomalous Hall Effect
• Anisotropic Magnetoresistance components in (Ga,Mn)As
• Disorder effects in the AHE induced by Berry curvature
• Anomalous Hall effect in a two-dimensional electron gas with spin-orbit interaction
• Complex itinerant ferromagnetism in noncentrosymmetric Cr11Ge19

Cited by in corpus (1)

• Topological Hall effect and the magnetic states of Nowotney chimney ladder compound Cr${}_{11}$Ge${}_{19}$}