104 citations · 277 across the 10 of their papers we have counts for
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Strain fingerprinting of exciton valley character
Abhijeet Kumar, Denis Yagodkin, Roberto Rosati +13
Momentum-indirect excitons composed of electrons and holes in different valleys define optoelectronic properties of many semiconductors, but are challenging to detect due to their…
Towards tunable graphene phononic crystals
Yuefeng Yu, Jan N. Kirchhof, Aleksei Tsarapkin +5
Phononic crystals (PnCs) are artificially patterned media exhibiting bands of allowed and forbidden zones for phonons. Many emerging applications of PnCs from solid-state simulator…
Nanomechanical absorption spectroscopy of 2D materials with femtowatt sensitivity
Jan N. Kirchhof, Yuefeng Yu, Denis Yagodkin +9
Nanomechanical spectroscopy (NMS) is a recently developed approach to determine optical absorption spectra of nanoscale materials via mechanical measurements. It is based on measur…
Mechanically-tunable bandgap closing in 2D graphene phononic crystals
Jan N. Kirchhof, Kirill I. Bolotin
We present a tunable phononic crystal which undergoes a phase transition from mechanically insulating to mechanically transmissive (metallic). Specifically, in our simulations for…
Nanomechanical spectroscopy of 2D materials
Jan N. Kirchhof, Yuefeng Yu, Gabriel Antheaume +7
We introduce a nanomechanical platform for fast and sensitive measurements of the spectrally-resolved optical dielectric function of 2D materials. At the heart of our approach is a…
Impact of gigahertz and terahertz transport regimes on spin propagation and conversion in the antiferromagnet IrMn
Oliver Gueckstock, Rafael L. Seeger, Tom S. Seifert +7
Control over spin transport in antiferromagnetic systems is essential for future spintronic applications with operational speeds extending to ultrafast time scales. Here, we study…