Design and characterization of plasmonic upconversion devices
Two-photon absorption (TPA)-driven PL upconversion generally suffers from low conversion efficiency, thereby choosing the monolayer with higher PL quantum yield will facilitate the…
Category: 4. Physics
-
Monatomic glass formation through competing order balance
Computer simulation models
We performed comprehensive MD simulations and data analyses for two transition metals, Ta and Zr, using well-established empirical embedded-atom method (EAM) potentials6,37. In the EAM formalism, the total energy of an…
Continue Reading
-
The maximum Tc of conventional superconductors at ambient pressure
Based on the observation that the coupling constant depends mainly on the phonon frequencies, McMillan in 196836 already derived an approximate expression of \({T}_{{{\rm{c}}}}^{\max }\). His result, however, only holds for a given class of…
Continue Reading
-
Scientists Create Magnetic Nanohelices To Control Electron Spin at Room Temperature
The twisting direction of metal nanoparticles is controlled to be right- or left-handed by adding chiral molecules, which are adsorbed onto the particle surface, during the electrochemical reduction of metal ions. Credit: Korea… Continue Reading
-
Something From Nothing – Physicists Mimic the “Impossible” Schwinger Effect
Physicists have long wondered whether matter can spontaneously emerge from nothing, a process known as the Schwinger effect. Though the original idea required impossibly high electric fields, researchers at the University of British… Continue Reading
-
Scientists Discover a “Giant” New Twist on a 140-Year-Old Effect
For the first time, researchers have uncovered a giant anomalous Hall effect in a nonmagnetic material, rewriting established physics and hinting at novel device possibilities. Credit: SciTechDaily.com Their results pave the way for…
Continue Reading
-
Physics – Diamond Defects Drive Dynamics
• Physics 18, s109
A minuscule diamond containing billions of impurities can be induced to produce enough force to bend a cantilever.
Over the past two decades, a major research effort has focused on defects called…
Continue Reading
-
Light-powered chip makes AI 100 times more efficient
Artificial intelligence (AI) systems are increasingly central to technology, powering everything from facial recognition to language translation. But as AI models grow more complex, they consume vast amounts of electricity — posing challenges…
Continue Reading
-
Machine Learning in Acoustics: A Review and Open-source Repository
In ref. 5, several ML algorithms were highlighted to provide relevant details about acoustic applications. In particular, ML principles, supervised and unsupervised, and deep learning (DL) theory were discussed in detail to demonstrate key…
Continue Reading
