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Forschungszentrum Juelich


Autonomous robot plays with NanoLEGO

Scientists have developed an artificial intelligence system that autonomously learns how to grip and move individual molecules, overcoming the complexity of nanoscale manipulation. The system uses reinforcement learning to find optimal movement patterns, enabling targeted assembly and separation of molecules.

SourceForschungszentrum Juelich·JournalScience Advances·DateSep 3, 2020

Artificial synapses on design

Scientists from JARA and Heraeus discovered that tiny material variations can significantly impact memristive device behavior. By controlling these differences, they created a method to design artificial synapses with varying excitability, which could lead to more efficient and reliable storage devices.

SourceForschungszentrum Juelich·JournalScience Advances·DateMay 11, 2020

High-efficiency laser for silicon chips

Scientists have created a compatible semiconductor laser made of germanium and tin, with efficiency comparable to conventional GaAs semiconductor lasers on Si. The new laser can be manufactured during the CMOS production process, reducing waste heat and enabling continuous operation.

SourceForschungszentrum Juelich·JournalNature Photonics·DateMar 24, 2020

Schrödinger's cat with 20 qubits

Scientists have created a new record by entangling 20 quantum bits in a 'Schrödinger's cat' state, exceeding the previous limit of 14 qubits. The team used a programmable quantum simulator to control and manipulate the qubits, demonstrating the potential for quantum technologies.

SourceForschungszentrum Juelich·JournalScience·DateAug 13, 2019

Hidden dynamics detected in neuronal networks

Researchers from Forschungszentrum Jülich and RWTH Aachen University have identified a second critical mode in neuronal networks, allowing for parallel information processing. This newly discovered dynamics permits the network to represent signals in numerous combinations of activated neurons.

SourceForschungszentrum Juelich·JournalProceedings of the National Academy of Sciences·DateJul 23, 2019

Concert of magnetic moments

Scientists have identified a unique chiral coupling that allows spins in different magnetic layers to interact over long distances, even if they are not adjacent. This discovery opens up novel opportunities for engineering complex magnetic configurations to store and process data more efficiently.

SourceForschungszentrum Juelich·JournalNature Materials·DateJun 13, 2019

Autism: Brain activity as a biomarker

Scientists discovered consistent brain activity patterns in people with autism that could be used to track treatment progress. The findings suggest that altering these patterns may help improve symptoms, but further studies are needed for confirmation.

SourceForschungszentrum Juelich·JournalScience Translational Medicine·DateMar 6, 2019

Artificial synapses made from nanowires

Scientists have created a memristive element made from nanowires that functions similarly to biological nerve cells, storing and processing information in parallel. The discovery offers promising advantages for bioinspired computers, which can work decentralised with multiple processors connected by networks.

SourceForschungszentrum Juelich·JournalNature Communications·DateDec 5, 2018

Turbocharge for lithium batteries

Scientists have developed a new anode material for lithium-ion batteries that can store more energy and charge faster. The hybrid material combines tin oxide nanoparticles with antimony on a graphene base, improving stability and conductivity.

SourceForschungszentrum Juelich·JournalAdvanced Functional Materials·DateJun 11, 2018

Looking deeper into brain function

Researchers propose a new concept to uncover connections between brain regions and cognitive functions, using a bottom-up approach. Recent advances in statistical methodology and brain imaging data provide the basis for this new method, which could help reveal the core functions of brain areas.

SourceForschungszentrum Juelich·JournalTrends in Cognitive Sciences·DateMar 26, 2018

Sun, wind, and power trading

Renewable energy generation causes grid frequency fluctuations due to variable wind speeds and photovoltaic feed-in. Power trading appears more significant in grid frequency fluctuation than renewable feed-in, with small grids showing larger fluctuations.

SourceForschungszentrum Juelich·JournalNature Energy·DateJan 9, 2018

Renaissance of the iron-air battery

Researchers at Forschungszentrum Jülich observe deposits forming on iron electrodes during operation, revealing a key to improving battery performance. The findings enhance energy density and capacity, paving the way for widespread adoption in mobile applications.

SourceForschungszentrum Juelich·JournalNano Energy·DateNov 16, 2017

New electron source for materials analysis

Researchers at Jülich's Peter Grünberg Institute have created a new method for high-resolution electron energy loss spectroscopy (HREELS) that allows for fast and efficient measurements. This innovation enables scientists to investigate unstable or sensitive samples, paving the way for breakthroughs in materials analysis.

SourceForschungszentrum Juelich·JournalReview of Scientific Instruments·DateMar 15, 2017

Einstein in an iron crystal

Researchers from Forschungszentrum Jülich and LMU Munich use angle-resolved photoemission spectroscopy to visualize band structure shifts in response to magnetic field changes. This observation confirms the predictions made by Einstein's theory of relativity, which suggests that electrons can sense the direction of a magnetic field.

SourceForschungszentrum Juelich·JournalPhysical Review X·DateDec 20, 2016

Tailor-made membranes for the environment

Researchers at Forschungszentrum Juelich have developed tailor-made ceramic membranes to efficiently separate gases, including harmful greenhouse gases, and produce high-purity hydrogen. The membrane's stability and hydrogen flow rate have been improved by inserting foreign atoms into the crystal lattice.

SourceForschungszentrum Juelich·JournalScientific Reports·DateNov 30, 2016

Neutrons verify new quantum state

Researchers have proved the existence of spin-spirals in a quantum liquid, where neighboring spins fluctuate collectively as spirals. This phenomenon, known as a 'spiral spin-liquid', was observed using polarized diffuse neutron scattering on an instrument at Forschungszentrum Jülich.

SourceForschungszentrum Juelich·JournalNature Physics·DateOct 27, 2016

Skyrmions à la carte

Researchers at Kiel University and Forschungszentrum Jülich have predicted that skyrmions can be produced for applications at room temperature with specifically adjusted magnetic layer structures. This enables the potential for high-density, energy-saving data storage and processing.

SourceForschungszentrum Juelich·JournalNature Communications·DateJun 3, 2016

Magnetic vortices defy temperature fluctuations

A team of researchers from Germany and the UK used high-resolution electron microscopy to study magnetic vortices in magnetite minerals, revealing that they are surprisingly resilient to temperature changes. The findings have significant implications for understanding the Earth's magnetic field history and plate tectonics.

SourceForschungszentrum Juelich·JournalScience Advances·DateApr 18, 2016

Effective graphene doping depends on substrate material

Researchers at Juelich's Peter Gruenberg Institute have discovered that effective graphene doping is influenced by the choice of substrate material. The scientists found that nitrogen atoms in the interface layer can dope the lattice without destroying it, leading to promising results for future applications in micro- and nanoelectronics.

SourceForschungszentrum Juelich·JournalPhysical Review Letters·DateMar 29, 2016

Blood cells in action

Researchers demonstrate that fast molecules in the vicinity make blood cell membranes wriggle, but cells also become active when they have enough reaction time. The study reveals a balance between thermal fluctuations and internal forces causing the cells to change shape.

SourceForschungszentrum Juelich·JournalNature Physics·DateJan 18, 2016

Stacking instead of mixing

Scientists at Jülich and Aachen have developed a method to control the conducting properties of topological insulators more precisely. By stacking materials instead of mixing, they optimized conductivity and reduced energy requirements. This breakthrough could lead to faster and more efficient computers and mobile phones.

SourceForschungszentrum Juelich·JournalNature Communications·DateNov 17, 2015

The all-rounder among supercomputers

JURECA's massive computing power of 2.2 quadrillion operations per second enables researchers in life sciences, earth system sciences, and other fields to tackle complex issues. The system's flexibility allows for various applications, including brain research, medicine, and materials research.

Recipe book for colloids

Researchers from Forschungszentrum Jülich create a comprehensive phase diagram that describes the material properties of colloids based on their structure and concentration. The study finds that the interaction length, which determines the solubility of the colloid solution, can be tuned to achieve specific macroscopic properties.

SourceForschungszentrum Juelich·JournalNanoscale·DateAug 14, 2015

New light in terahertz window

Scientists at Jülich have developed a new concept for compact terahertz sources with tunable wavelengths using short-pulse lasers and strong external magnetic fields. This technology has the potential to revolutionize various applications, including non-invasive cancer screening and ultrafast wireless connections.

SourceForschungszentrum Juelich·JournalPhysical Review Letters·DateJun 23, 2015