4 papers
Terahertz Landau level spectroscopy of Dirac fermions in millimeter-scale twisted bilayer graphene
Benjamin F. Mead, Spenser Talkington, An-Hsi Chen +8
Exotic electronic physics including correlated insulating states and fractional Chern insulators have been observed in twisted bilayer graphene in a magnetic field when the Fermi v…
Broad-band THz emission by Spin-to-Charge Conversion in Topological Material -- Ferromagnet Heterostructures
Xingyue Han, Xiong Yao, Tilak Ram Thapaliya +10
Terahertz spintronic devices combine ultrafast operation with low power consumption, making them strong candidates for next-generation memory technologies. In this study, we use ti…
Large Topological Magnetic Optical Effects and Imaging of Antiferromagnetic Octupole Domains of an Altermagnet-like Weyl Semimetal
Xingyue Han, Xiaoran Liu, Mikhail Kareev +2
Pyrochlore iridates have attracted significant interest due to their complex phase behavior arising from the interplay among electron correlations, quantum metric in flat bands, ge…
Quantized Magneto-Terahertz Effects in the Antiferromagnetic Topological Insulator MnBiTe Thin Films
Xingyue Han, An-Hsi Chen, Matthew Brahlek +1
MnBiTe (MBT) is an ideal platform for studying the interplay between magnetism and topology. Many exotic topological phenomena, such as the quantum anomalous Hall effect an…