Hierarchical assemblies of ferroelectric nanodomains, so-called super-domains, can exhibit exotic morphologies that lead to distinct behaviours. Controlling these super-domains reliably is critical for realizing states with desired functional properties.
A biased atomic force microscopy tip can write complex in-plane polar topologies in a model ferroelectric Pb0.6Sr0.4TiO3 by means of a smart scan path design. Hence, on-demand generation, reading and erasing of tunable topologies is possible.
There’s a bar in Baltimore, Maryland, that very few people get to enter.
From alcoholism to Parkinson’s, scientists are studying the mechanisms behind the broad clinical potential of weight-loss drugs.
Partial reprogramming with the Yamanaka transcription factors is considered to be a potential anti-aging strategy, but until now largely regarded as systemic intervention.
Reprogramming aged cells through targeted overexpression of Oct4, Sox2, and Klf4 leads to beneficial health effects in progeroid and aged mice.
A decade after the discovery of the “amplituhedron,” physicists have excavated more of the timeless geometry underlying the standard picture of how particles move.
Dataland co-founder Refik Anadol, 38, is a media artist whose “crowd-pleasing – and controversial” works using artificial intelligence have been displayed around the world, including at the Museum of Modern Art in New York, the Serpentine and, most recently, the United Nations headquarters.
In the past two years, Anadol has found himself at the center of debates over the value of AI-generated art, as crowds have been reportedly “transfixed” by his massive interactive digital canvases, while some art critics have panned them as over-hyped and mediocre.
Now Anadol is looking to build artists like himself a permanent exhibition space among some of LA’s most prominent high-culture venues, and he is pledging that the AI art museum will promote “ethical AI” and use renewable energy sources.
A joint research group from China recently achieved the first observation of intrinsic magnetic structures in a kagome lattice by using the highly sensitive magnetic force microscopy (MFM) system of the Steady High Magnetic Field Facility (SHMFF) as well as electron paramagnetic resonance spectroscopy and micromagnetic simulations.
The collecting of highly precise measurements can enable research developments and technological advancements in numerous fields. In physics, high-precision measurements can unveil new phenomena and experimentally validate theories.
The authors of the theoretical work say in their paper, Our work addresses the question: ‘Where does the, famously quantized, charge current flow in a Chern insulator?’
This question received considerable attention in the context of the quantum Hall effect, but the progress there has been hampered by the lack of local probes, and no consensus has emerged so far. The fundamental problem is the following: topological protection is excellent at hiding local information (such as the spatial distribution of the current),—a phenomenon that we call topological censorship.
Two recent experiments, which used local probes to determine the spatial current distribution in Chern insulator heterostructures (Bi, Sb)2Te3, have remedied the dearth of experimental data in the case of the anomalous quantum Hall effect. These experiments reached unexpected, albeit very different, conclusions. Here, we provide the theory explaining one of these experiments.
In nature, photosynthesis powers plants and bacteria; within solar panels, photovoltaics transform light into electric energy. These processes are driven by electronic motion and imply charge transfer at the molecular level. The redistribution of electronic density in molecules after they absorb light is an ultrafast phenomenon of great importance involving quantum effects and molecular dynamics.
Augmented reality (AR) takes digital images and superimposes them onto real-world views. But AR is more than a new way to play video games; it could transform surgery and self-driving cars. To make the technology easier to integrate into common personal devices, researchers report in ACS Photonics how to combine two optical technologies into a single, high-resolution AR display. In an eyeglasses prototype, the researchers enhanced image quality with a computer algorithm that removed distortions.