no code implementations • 11 Jan 2021 • Minhao He, Ya-Hui Zhang, Yuhao Li, Zaiyao Fei, Kenji Watanabe, Takashi Taniguchi, Xiaodong Xu, Matthew Yankowitz
Flat band moir\'e superlattices have recently emerged as unique platforms for investigating the interplay between strong electronic correlations, nontrivial band topology, and multiple isospin 'flavor' symmetries.
Strongly Correlated Electrons Mesoscale and Nanoscale Physics Materials Science
no code implementations • 7 Jan 2021 • Joshua Mutch, Xuetao Ma, Chong Wang, Paul Malinowski, Joss Ayres-Sims, Qianni Jiang, Zhaoyu Liu, Di Xiao, Matthew Yankowitz, Jiun-Haw Chu
The angular dependence of the Hall resistivity approaches a signum function, persisting down to an extremely low field of 0. 03 T. By varying the carrier density of ZrTe5 over three orders of magnitude, we show that this singular behavior is due to the anomalous Hall effect generated by the ultra-dilute massive Dirac carriers in the quantum limit of Pauli paramagnetism when the Zeeman energy exceeds the Fermi energy.
Mesoscale and Nanoscale Physics
