6 papers · 1 filter
Magneto-optic phonon resonances in magnetic topological EuCd2As2 via helical Raman spectroscopy
Jin Ho Kang, Liangbo Liang, Ioannis Petrides +6
EuCd2As2 materials have two magnetic ordering states: antiferromagnetic (AFM) and ferromagnetic (FM) when their chemical tunability is utilized. While AFM-EuCd2As2 has a nonzero ma…
Programmable Photocatalysis via Symmetry-Defined Periodic Potentials
Qun Yang, Di Luo, Prineha Narang
Photocatalysis in atomically thin semiconductors is often limited by rapid electron-hole recombination, making it difficult to translate favorable band structures into efficient ch…
Exciton collective modes in a bilayer of axion insulator
Olivia Liebman, Jonathan B. Curtis, Emily Been +1
We investigate the emergence of an exciton condensate and associated collective modes in a bilayer configuration of , an antiferromagnetic topological ins…
Strain-Induced Antiferromagnetic-to-Altermagnetic Phase Transition and Topology in Superlattice
Wanfei Shan, Qun Yang, Prineha Narang
Topological aspects in altermagnets have come into focus recently, and tuning the antiferromagnetic (AFM) state into an altermagnetic phase remains an active frontier. We realize b…
The morphology and interface structure of titanium on graphene
Joachim Dahl Thomsen, Wissam A. Saidi, Kate Reidy +4
Titanium (Ti) is an adhesion and contact metal commonly used in nanoelectronics and two-dimensional (2D) materials research. However, when Ti is deposited on graphene (Gr), we obta…
Twist-induced spin splitting and spin-Hall-like effect in antiferromagnetic bilayers
Zhigang Song, Xiuying Zhang, Julian Klein +3
Momentum-resolved spin-polarized bands are a key ingredient in many proposed spintronic devices, but their existence often relies on lattice commensurability or strong spin-orbit c…