We perform a detailed analysis of the magnetotransport and de Haas-van Alphen (dHvA) oscillations in crystal PdGa which is predicted to be a typical chiral Fermion semimetal from CoSi family holding a large Chern number. The unsaturated quadratic magnetoresistance (MR) and nonlinear Hall resistivity indicate that PdGa is a multi-band system without electron-hole compensation. Angle-dependent resistivity in PdGa shows weak anisotropy with twofold or threefold symmetry when the magnetic field rotates within the (11ˉ0) or (111) plane perpendicular to the current. Nine or three frequencies are extracted after the fast Fourier-transform analysis (FFT) of the dHvA oscillations with B//[001] or B//[011], respectively, which is confirmed to be consistent with the Fermi surfaces (FSs) obtained from first-principles calculations with spin-orbit coupling (SOC) considered.
@article{arxiv.2203.12772,
title = {Quantum oscillations and weak anisotropic resistivity in the chiral Fermion semimetal PdGa},
author = {Xiang-Yu Zeng and Zheng-Yi Dai and Sheng Xu and Ning-Ning Zhao and Huan Wang and Xiao-Yan Wang and Jun-Fa Lin and Jing Gong and Xiao-Ping Ma and Kun Han and Yi-Ting Wang and Peng Cheng and Kai Liu and Tian-Long Xia},
journal= {arXiv preprint arXiv:2203.12772},
year = {2022}
}