6 papers
Magnetic Signatures of a Putative Fractional Topological Insulator in Twisted MoTe2
Yiping Wang, Gillian E. Minarik, Weijie Li +15
The interplay among electronic correlation, topology, and time-reversal-symmetry (TRS) often leads to exotic quantum states of matter, as highlighted by the discoveries of fraction…
Tunable Narrowband Terahertz Radiation from van der Waals Ferroelectrics
Chun-Ying Huang, Taketo Handa, Daniel G. Chica +10
The terahertz (THz) spectral range is central to high-speed communication, precision metrology, sensing technologies, and a range of fundamental scientific investigations. Achievin…
Observation of Coherent Ferrons
Jeongheon Choe, Taketo Handa, Chun-Ying Huang +16
Excitation of ordered quantum phases gives rise to collective modes and quasiparticles, as exemplified by spin waves and magnons emerging from magnetic order. Extending this paradi…
Magneto-Optical Analysis of Magnetic Anisotropy in Ultrathin TmFeO/Pt Bilayers
T. Nathan Nunley, Daniel Russell, Liang-Juan Chang +6
Magnetic bilayers consisting of an epitaxially grown ferrimagnetic insulator and a heavy metal layer are attractive for spintronic application because of the opportunity for electr…
Long-lived Zone-boundary Magnons in an Antiferromagnet
Jeongheon Choe, David Lujan, Gaihua Ye +13
Antiferromagnetic (AFM) insulators exhibit many desirable features for spintronic applications such as fast dynamics in the THz range and robustness to fluctuating external fields.…
Hidden States and Dynamics of Fractional Fillings in tMoTe2 Moiré Superlattices
Yiping Wang, Jeongheon Choe, Eric Anderson +14
The fractional quantum anomalous Hall (FQAH) effect was recently discovered in twisted MoTe2 bilayers (tMoTe2). Experiments to date have revealed Chern insulators from hole doping…