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45 papers
Cryogenic Nano-Imaging of Excitons in a Monolayer Semiconductor
Anna Roche, Michael R. Koehler, David G. Mandrus +4
Excitons, Coulomb bound electron-hole pairs, dominate the optical response of two-dimensional semiconductors across near-infrared and visible frequencies due to their large binding…
Ultra-broadband bright light emission from a one-dimensional inorganic van der Waals material
Fateme Mahdikhany, Sean Driskill, Jeremy G. Philbrick +10
One-dimensional (1D) van der Waals materials have emerged as an intriguing playground to explore novel electronic and optical effects. We report on inorganic one-dimensional SbPS4…
Impact of Boron doping to the tunneling magnetoresistance of Heusler alloy Co2FeAl
Ali Habiboglu, Yash Chandak, Pravin Khanal +7
Heusler alloys based magnetic tunnel junctions can potentially provide high magnetoresistance, small damping and fast switching. Here junctions with Co2FeAl as a ferromagnetic elec…
Single exciton trapping in an electrostatically defined 2D semiconductor quantum dot
Daniel N. Shanks, Fateme Mahdikhanysarvejahany, Michael R. Koehler +5
Interlayer excitons (IXs) in 2D semiconductors have long lifetimes and spin-valley coupled physics, with a long-standing goal of single exciton trapping for valleytronic applicatio…
Localized Interlayer Excitons in MoSe2-WSe2 Heterostructures without a Moiré Potential
Fateme Mahdikhanysarvejahany, Daniel N. Shanks, Mathew Klein +8
Trapped interlayer excitons (IXs) in MoSe2-WSe2 heterobilayers have generated interest for use as single quantum emitter arrays and as an opportunity to study moiré physics in tran…
Interlayer Exciton Diode and Transistor
Daniel N. Shanks, Fateme Mahdikhanysarvejahany, Trevor G. Stanfill +6
Controlling the flow of charge neutral interlayer exciton (IX) quasiparticles can potentially lead to low loss excitonic circuits. Here, we report unidirectional transport of IXs a…