Tailored electron pulses for improved electron microscopy

Interplay of free electrons

16-Oct-2023 - Electron microscopes provide unique vistas of nanoscale structures, but their resolution is limited by the mutual repulsion of electrons. Researchers in Göttingen have now succeeded in precisely measuring the influence of these interactions. They discovered an “energetic fingerprint” in which the ...

Carrying and releasing nanoscale cargo with 'nanowrappers'

Nanocubes for biomedicine, catalysis and beyond

08-Jan-2019 - This holiday season, scientists at the Center for Functional Nanomaterials (CFN)--a U.S. Department of Energy Office of Science User Facility at Brookhaven National Laboratory--have wrapped a box of a different kind. Using a one-step chemical synthesis method, they engineered hollow metallic ...

How to melt gold at room temperature

21-Nov-2018 - When the tension rises, unexpected things can happen - not least when it comes to gold atoms. Researchers from, among others, Chalmers University of Technology, Sweden, have now managed, for the first time, to make the surface of a gold object melt at room temperature. Ludvig de Knoop, from ...

Enhancing the quantum sensing capabilities of diamond

24-Nov-2017 - Researchers have discovered that dense ensembles of quantum spins can be created in diamond with high resolution using an electron microscopes, paving the way for enhanced sensors and resources for quantum technologies. Diamonds are made of carbon atoms in a crystalline structure, but if a carbon ...

Potential future data storage at domain boundaries

Scientists discover polar domain walls in antiferroelectric materials

16-Jan-2014 - Storing more and more in an ever-smaller space – what sounds impossible is in fact just part of the daily routine in information technology, where for decades, increasing amounts of data have been successfully stored on media with ever higher densities. An international team, including ...

Butterfly wings' 'art of blackness' could boost production of green fuels

29-Mar-2012 - Butterfly wings may rank among the most delicate structures in nature, but they have given researchers powerful inspiration for new technology that doubles production of hydrogen gas — a green fuel of the future — from water and sunlight. The researchers presented their findings at the American ...

Electrons catch a wave

Physicists use ultrashort laser pulses to drive and accelerate electrons out of nanotips

12-Mar-2012 - In 1905 Albert Einstein transformed physics with his explanation of the famous photoelectric effect. In his Nobel-Prize-winning work, Einstein abandoned classical principles and introduced the concept of light particles, known today as photons, to describe light-induced electron emission from ...

Researchers at Mainz University make visible the structure of the smallest crystals

27-Sep-2011 - A radical new way of making structures visible at the nano level has been developed at Johannes Gutenberg University Mainz (JGU). This new method makes it possible to determine with precision the arrangement of atoms and molecules in a diverse range of materials from cement to pharmaceuticals. ...

Tiny wires change behavior at nanoscale

Rice University researchers surprised to see twin-induced brittle-like fractures in gold nanowires

02-Sep-2011 - Thin gold wires often used in high-end electronic applications are wonderfully flexible as well as conductive. But those qualities don't necessarily apply to the same wires at the nanoscale. A new study from Rice University finds gold wires less than 20 nanometers wide can become "brittle-like" ...

SALVE Project Enters Second Phase

Successful evaluation phase prompts University of Ulm and Carl Zeiss to continue with their joint venture to develop a high-performance transmission electron microscope

16-Aug-2011 - Following the successful completion of a two-year evaluation phase, the University of Ulm, the Heidelberg-based company CEOS GmbH and Carl Zeiss Nano Technology Systems have signed an agreement to embark on the next phase of the SALVE project. SALVE – which stands for Sub-Angstrom Low Voltage ...