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5 papers · 1 filter
Nanoscale ferroelectric programming of van der Waals heterostructures
Dengyu Yang, Qingrui Cao, Erin Akyuz +8
The ability to create superlattices in van der Waals (vdW) heterostructures via moiré interference heralded a new era in the science and technology of two-dimensional materials. Th…
A new spatial-scan thermoreflectance method to measure a broad range of anisotropic in-plane thermal conductivity
Puqing Jiang, Dihui Wang, Zeyu Xiang +2
In-plane thermal conductivities of small-scale samples are hard to measure, especially for the lowly conductive ones and those lacking in-plane symmetry (i.e., transversely anisotr…
Plasmonically assisted channels of photoemission from metals
Dino Novko, Vito Despoja, Marcel Reutzel +3
We analyse recently measured nonlinear photoemission spectra from Ag surfaces that reveal resonances whose energies do not scale with the applied photon energy but stay pinned to m…
Ultrafast asymmetric Rosen-Zener-like coherent phonon responses observed in silicon
Yohei Watanabe, Ken-ichi Hino, Nobuya Maeshima +2
We investigate the spectral profiles of time signals attributed to coherent phonon generation in an undoped Si crystal. Here, the retarded longitudinal-optical (LO) phonon Green fu…
Photoferroelectric oxides
I. Fina, C. Paillard, B. Dkhil
Giant photovoltaic effect due to bulk photovoltaic effect observed in multiferroic BiFeO3 thin films has triggered a renewed interest on photoferroelectric materials for photovolta…