Lee, Ji-Eun Wang, Aifeng Chen, Shuzhang Kwon, Minseong Hwang, Jinwoong Cho, Minhyun Son, Ki-Hoon Han, Dong-Soo Choi, Jun Woo Kim, Young Duck Mo, Sung-Kwan Petrovic, Cedomir Hwang, Choongyu Park, Se Young Jang, Chaun Ryu, Hyejin 2024-06-20T05:30:24Z 2024-06-20T05:30:24Z 2024-06-20 2024-05 https://pubs.kist.re.kr/handle/201004/150107 The Berry curvature dipole (BCD) serves as a one of the fundamental contributors to emergence of the nonlinear Hall effect (NLHE). Despite intense interest due to its potential for new technologies reaching beyond the quantum efficiency limit, the interplay between BCD and NLHE has been barely understood yet in the absence of a systematic study on the electronic band structure. Here, we report NLHE realized in NbIrTe4 that persists above room temperature coupled with a sign change in the Hall conductivity at 150 K. First-principles calculations combined with angle-resolved photoemission spectroscopy (ARPES) measurements show that BCD tuned by the partial occupancy of spin-orbit split bands via temperature is responsible for the temperature-dependent NLHE. Our findings highlight the correlation between BCD and the electronic band structure, providing a viable route to create and engineer the non-trivial Hall effect by tuning the geometric properties of quasiparticles in transition-metal chalcogen compounds. English Nature Publishing Group Spin-orbit-splitting-driven nonlinear Hall effect in NbIrTe4 Article 10.1038/s41467-024-47643-4 1 Nature Communications, v.15, no.1 Nature Communications 15 1 Y scie scopus 001221549300038 2-s2.0-85192885302 Multidisciplinary Sciences Science & Technology - Other Topics Article METAL