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14 Current news of Uni Bielefeldrss
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"Our special material design has made it possible for us to tease out properties that we know from theory but could not see before"
Three-dimensional topological insulators are materials that can conduct electric current without resistance—but only on their surface. However, this effect is difficult to measure. This is because these materials usually have little surface area in relation to their volume, which means their ...
Research team demonstrates control mechanism for quantum material
How can large amounts of data be transferred or processed as quickly as possible? One key to this could be graphene. The ultra-thin material is only one atomic layer thick, and the electrons it contains have very special properties due to quantum effects. It could therefore be very well suited ...
New material increases efficiency
Electronic devices such as computers generate heat that mostly goes to waste. Physicists at Bielefeld University have found a way to use this energy: They apply the heat to generate magnetic signals known as 'spin currents'. In future, these signals could replace some of the electrical current in ...
This information can be used to produce images with a resolution of about 20 to 30 nanometres, and thereby ten times that of conventional light microscopy. Until now, this method has required the use of expensive special instruments. Bielefeld University and the University of Tromsø have filed a ...
Light-absorbing films can be found in many everyday applications such as solar cells or sensors. They are used to convert light into electrical current or heat. The films literally trap the light. Although such absorber films are applied widely, scientists still do not know which mechanism ...
Researchers at the universities in Bielefeld, Manchester, and Zaragoza present low-temperature experiment in Nature Communications
An international team of scientists have become the first ever researchers to successfully reach temperatures below minus 272.15 degrees Celsius – only just above absolute zero – using magnetic molecules. The physicists and chemists are presenting their new investigation in Nature ...
In the future, carbon nanomembranes are expected to be able to filter out very fine materials. These separating layers are ultrathin, consisting of just one layer of molecules. In the long term, they could allow to separate gases from one another, for example, filtering toxins from the air. At ...
Concept is based on research at Bielefeld University
Semiconductor thin films with special electronic, magnetic or optical functions are widely demanded for technical applications in increasingly smaller and efficient devices - they are indispensable in high-efficiency solar cells, bright light-emitting diodes and magneto-electronic devices. ...
Researchers from Bielefeld, Kaiserslautern and Würzburg have developed a novel high-tech microscope: It magnifies objects a million times and shows movements with a retardation of one million billion times. The new technology allows tracking extremely fast processes in miniature objects – with an ...
American Humboldt Award winner Ralph G. Nuzzo will spend a several-months research period at KIT and at Bielefeld University
At the beginning of the 1980s, the chemist Professor Ralph G. Nuzzo paved the way for use of the first thiol-based self-assembling monolayers (SAMs). Nanotechnology is not imaginable today without that innovation. Professor Nuzzo is now honored with the Research Award of the Alexander von ...