Kirigami-inspired inflatables with programmable shapes

Kavli Affiliate: Katia Bertoldi | First 5 Authors: Lishuai Jin, Antonio Elia Forte, Bolei Deng, Ahmad Rafsanjani, Katia Bertoldi | Summary: Kirigami, the Japanese art of paper cutting, has recently enabled the design of stretchable mechanical metamaterials that can be easily realized by embedding arrays of periodic cuts into an elastic sheet. Here, we exploit […]


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Solid-state ionic rectification in perovskite nanowire heterostructures

Kavli Affiliate: Peidong Yang | First 5 Authors: Qiao Kong, Amael Obliger, Minliang Lai, Mengyu Gao, David T. Limmer | Summary: Halide perovskites have attracted increasing research attention regarding their outstanding optoelectronic applications. Owing to its low activation energy, ion migration is implicated in the long-term stability and many unusual transport behaviors of halide perovskite […]


Continue.. Solid-state ionic rectification in perovskite nanowire heterostructures

Solid-state ionic rectification in perovskite nanowire heterostructures

Kavli Affiliate: Peidong Yang | First 5 Authors: Qiao Kong, Amael Obliger, Minliang Lai, Mengyu Gao, David T. Limmer | Summary: Halide perovskites have attracted increasing research attention regarding their outstanding optoelectronic applications. Owing to its low activation energy, ion migration is implicated in the long-term stability and many unusual transport behaviors of halide perovskite […]


Continue.. Solid-state ionic rectification in perovskite nanowire heterostructures

Imaging moiré flat bands in 3D reconstructed WSe2/WS2 superlattices

Kavli Affiliate: Michael F. Crommie | First 5 Authors: Hongyuan Li, Shaowei Li, Mit H. Naik, Jingxu Xie, Xinyu Li | Summary: Moir’e superlattices in transition metal dichalcogenide (TMD) heterostructures can host novel correlated quantum phenomena due to the interplay of narrow moir’e flat bands and strong, long-range Coulomb interactions1-5. However, microscopic knowledge of the […]


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Physics Successfully Implements Lagrange Multiplier Optimization

Kavli Affiliate: Eli Yablonovitch | First 5 Authors: Sri Krishna Vadlamani, Tianyao Patrick Xiao, Eli Yablonovitch, , | Summary: Optimization is a major part of human effort. While being mathematical, optimization is also built into physics. For example, physics has the principle of Least Action, the principle of Minimum Entropy Generation, and the Variational Principle. […]


Continue.. Physics Successfully Implements Lagrange Multiplier Optimization

Physics Successfully Implements Lagrange Multiplier Optimization

Kavli Affiliate: Eli Yablonovitch | Summary:Optimization is a major part of human effort. While being mathematical, optimization is also built into physics. For example, physics has the principle of Least Action, the principle of Minimum Entropy Generation, and the Variational Principle. Physics also has physical annealing which, of course, preceded computational Simulated Annealing. Physics has […]


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Scientific Discovery by Generating Counterfactuals using Image Translation

Kavli Affiliate: Michael Brenner | First 5 Authors: Arunachalam Narayanaswamy, Subhashini Venugopalan, Dale R. Webster, Lily Peng, Greg Corrado | Summary: Model explanation techniques play a critical role in understanding the source of a model’s performance and making its decisions transparent. Here we investigate if explanation techniques can also be used as a mechanism for […]


Continue.. Scientific Discovery by Generating Counterfactuals using Image Translation

Scientific Discovery by Generating Counterfactuals using Image Translation

Kavli Affiliate: Michael Brenner | First 5 Authors: Arunachalam Narayanaswamy, Subhashini Venugopalan, Dale R. Webster, Lily Peng, Greg Corrado | Summary: Model explanation techniques play a critical role in understanding the source of a model’s performance and making its decisions transparent. Here we investigate if explanation techniques can also be used as a mechanism for […]


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Fast Molecular Compression by a Hyperthermal Collision Gives Bond-Selective Mechanochemistry

Kavli Affiliate: Stephan Rauschenbach | Summary:Using electrospray ion beam deposition, we collide the complex molecule Reichardt’s Dye (C41H30NO+) at low, hyperthermal translational energy (2-50 eV) with a Cu(100) surface and image the outcome at single-molecule level by scanning tunneling microscopy. We observe bond-selective reaction induced by the translational kinetic energy. The collision impulse compresses the […]


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Operando Control of Skyrmion Density in a Lorentz Transmission Electron Microscope with Current Pulses

Kavli Affiliate: Gregory D. Fuchs | First 5 Authors: Albert M. Park, Zhen Chen, Xiyue S. Zhang, Lijun Zhu, David A. Muller | Summary: Magnetic skyrmions hold promise for spintronic devices. To explore the dynamical properties of skyrmions in devices, a nanoscale method to image spin textures in response to a stimulus is essential. Here, […]


Continue.. Operando Control of Skyrmion Density in a Lorentz Transmission Electron Microscope with Current Pulses