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Flipping the electron spin

Test procedure for developing quick-charging lithium-ion batteries

07-Dec-2017

When lithium-ion batteries are charged too quickly, metallic lithium gets deposited on the anodes. This reduces battery capacity and lifespan and can even destroy the batteries. Scientists at the Forschungszentrum Jülich and the Technical University of Munich (TUM) have now presented a process ...

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The repulsion trick

A self-solving puzzle for organic molecules

20-Mar-2017

Jülich researchers have succeeded in controlling the growth of organic molecules using a special trick. Molecules that repel each other play a key role in this process: due to their opposing forces, they always keep a certain distance from their neighbours. Therefore, they mix easily with a ...

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New electron source for materials analysis

16-Mar-2017

How can solar cells be made more efficient? How can solar and wind energy be best stored for later use? Technologies for the transformation of the German energy sector (Energiewende) require tailor-made materials which are both affordable and efficient. One important tool in the search for such ...

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Further Improvement of Qubit Lifetime for Quantum Computers

New Technique Removes Quasiparticles from Superconducting Quantum Circuits

12-Dec-2016

An international team of scientists has succeeded in making further improvements to the lifetime of superconducting quantum circuits. An important prerequisite for the realization of high-performance quantum computers is that the stored data should remain intact for as long as possible. The ...

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Atomic Bits Despite Zero-Point Energy?

Scientists explore novel ways of developing stable nanomagnets

11-Jul-2016

So-called "zero-point energy" is a term familiar to some cinema lovers or series fans; in the fictional world of animated films such as "The Incredibles" or the TV series "Stargate Atlantis", it denotes a powerful and virtually inexhaustible energy source. Whether it could ever be used as such is ...

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Skyrmions a la carte

07-Jun-2016

Magnetic vortices - so-called skyrmions - were predicted theoretically more than 25 years ago, but it has only been possible to observe them experimentally in magnetic materials in recent years. Skyrmions are stable, can have a diameter of just a few nanometres, and can be moved efficiently by ...

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Magnetic Vortices Defy Temperature Fluctuations

Common Magnetic Mineral is Reliable Witness to Earth's History

19-Apr-2016

Magnetic nanovortices in magnetite minerals are reliable witnesses of the earth's history, as revealed by the first high-resolution studies of these structures undertaken by scientists from Germany and the United Kingdom. The magnetic structures are built during the cooling of molten rock and ...

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Effective Graphene Doping Depends on Substrate Material

31-Mar-2016

Jülich physicists have discovered unexpected effects in doped graphene – i.e. graphene that is mixed with foreign atoms. They investigated samples of the carbon compound enriched with the foreign atom nitrogen on various substrate materials. Unwanted interactions with these substrates can ...

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A new theory describes ice's slippery behavior

10-Dec-2015

Winter is coming, promising the usual bouts of frozen precipitation for northern locations. The slickness of snow and ice is a big pain if you're driving, flying or walking, but can be a lot of fun if you strap on a pair of skis. Bo Persson, a scientist at the Jülich Research Center in Germany, ...

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New insights into the creation of heavy elements

04-Dec-2015

Alpha particles, as the nuclei of the helium atom are also called, play a decisive role in the formation of heavier elements. Carbon, for instance, is formed from the fusion of these alpha particles. If another helium nucleus is added, oxygen is formed - another prerequisite for the development ...

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