You are on:
Field emission of electrons is a crucial area of study in science and technology, with applications in signal processing and imaging at the atomic scale. Advances in electron microscopy techniques have made it possible to visualize matter on the native spatial and temporal scales of electron dynamics. Still, the analysis of attosecond electron pulses remains a major challenge.
Light pulses emit electrons bursts from a metallic nanotip that last merely 53 attoseconds. Image Credit: Eleftherios Goulielmakis, University of Rostock
The fluid-like movement of electrons in graphene was directly observed by physicists at the University of Wisconsin-Madison for the first time at a nanometer resolution. The findings have the potential for creating new, low-resistance materials where electrical transmission is more effective, and they will be published in the journal Science.
A heatmap of electron location in graphene shows that at the lower temperature (left panel), the electrons are more likely to bump into impurities (circles), with relatively fewer making it through the channel between impurities. At higher temperatures (right panel), electron flow shifts to being fluid-like. Fewer are stuck at the impurities and more flow through the channels. Image Credit: University of Wisconsin–Madison
Tunable conductivity – the deciding feature of semiconductor materials – is the materials science discovery that enabled the modern digital age. Now, scientists are seeking alternatives to the mainstay of the semiconductor industry. Recent research has highlighted cubic boron arsenide as a semiconductor material to remember.
Image Credit: aslysun/Shutterstock.com
After several benchmarklistings as well as a few official teasers, vivo finally confirmed the launch details for its upcoming V27 series phones. The V27 series is launching on March 1 in India
vivo V27 Pro design
Anime looks to enter the mainstream across the globe.
getty
[SPOILER="iOS & iPadOS 16.4 Beta Release Notes"][HEADING=2]Backup and Restore[/HEADING][HEADING=3]Known Issues[/HEADING]* Watch migration might fail when restoring a backup to a new phone. (105416351)Workaround: Unpair the watch from the source phone, then pair it to the destination phone.
[HEADING=2]Beta enrollment for iPhone and iPad[/HEADING][HEADING=3]New Features[/HEADING]
dnes 14:00
|
Russlands Präsident Wladimir Putin und der belarussische Staatschef Alexander Lukaschenko haben in Moskau über die Zusammenarbeit beider Länder in Wirtschafts- und Sicherheitsfragen gesprochen. Dabei unterstrich Lukaschenko nach russischen Agenturberichten die technologische Kooperation der zwei verbündeten, aber international isolierten Nachbarstaaten. Sie lasse die Sanktionen ins Leere laufen, die wegen des russischen Angriffs auf die Ukraine verhängt worden sind, behauptete er.
Die Länder des Westens hätten Russland und Belarus nicht um ihr Potenzial in der Computertechnologie gebracht, sagte Lukaschenko bei dem Treffen in Putins Residenz Nowo-Ogarjowo. Auch produziere Belarus jetzt schon etwa 1.000 Bauteile für die zivilen russischen Flugzeuge MS-21 und Suchoi Superjet. Sein Land sei mit etwas russischer Hilfe auch in der Lage, Erdkampfflugzeuge herzustellen, sagte Lukaschenko. Solche Maschinen dienen der Unterstützung eigener Infanterie-Einheiten und können gegnerische Ziele am Boden angreifen.
