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Electroengineering
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Physics - Electroengineering - 04.12.2024
Milestone in Defining Electrical Units
Scientists at the University of Würzburg and the German national metrology institute (PTB) have carried out an experiment that realizes a new kind of quantum standard of resistance. It's based on the Quantum Anomalous Hall Effect. The precise measurement of electrical resistance is essential in industrial production or electronics - for example, in the manufacture of high-tech sensors, microchips and flight controls.
Microtechnics - Electroengineering - 10.09.2024
Artificial muscles propel a robotic leg to walk and jump
The newly developed robotic leg is inspired by living creatures and jumps over different terrains much more manoeuvrable and energy-efficiently than previous robots Researchers have developed the first robotic leg that is powered by artificial electro-hydraulic muscles and automatically adapts to uneven terrain.
Physics - Electroengineering - 09.09.2024
Electrically Modulated Light Antenna Points the Way to Faster Computer Chips
Physicists from Würzburg present a nanometre-sized light antenna with electrically modulated surface properties - a breakthrough that could pave the way for faster computer chips. Today's computers reach their physical limits when it comes to speed. Semiconductor components usually operate at a maximum usable frequency of a few gigahertz - which corresponds to several billion computing operations per second.
Physics - Electroengineering - 23.08.2024
Würzburg Theory Confirmed: Kagome Superconductor Makes Waves
Superconductivity theory proposed by Würzburg physics team validated in international experiment: Cooper pairs display wave-like distribution in Kagome metals, enabling new technological applications like superconducting diodes. For about fifteen years, Kagome materials with their star-shaped structure reminiscent of a Japanese basketry pattern have captivated global research.
Electroengineering - 27.05.2024
Moving Components in Miniature
Electromagnetic engines can't be reduced to just any size. It takes clever engineering tricks to generate active movement in miniature format. Researchers in Bochum are constantly coming up with new technologies. Over the years, a great many technical components have been shrunk in size. But miniaturization reaches its limits when tiny systems are supposed to move actively, because conventional electromagnetic motors become inefficient when reduced to miniature format.
Physics - Electroengineering - 15.04.2024
Quantum Precision: A New Kind of Resistor
Researchers at the University of Würzburg have developed a method that can improve the performance of quantum resistance standards. It's based on a quantum phenomenon called Quantum Anomalous Hall effect. The precise measurement of electrical resistance is essential in industrial production or electronics - for example, in the manufacture of high-tech sensors, microchips and flight controls.
Physics - Electroengineering - 04.04.2024
Progress in Quantum Physics: Researchers Tame Superconductors
An international team including researchers from the University of Würzburg has succeeded in creating a special state of superconductivity. This discovery could advance the development of quantum computers. Superconductors are materials that can conduct electricity without electrical resistance - making them the ideal base material for electronic components in MRI machines, magnetic levitation trains and even particle accelerators.
Microtechnics - Electroengineering - 31.01.2024
3D-printed pneumatic modules replace electric controls in soft robots
Research team at the University of Freiburg develops 3D-printed pneumatic logic modules that control the movements of soft robots using only air pressure In the future, soft robots will be able to perform tasks that cannot be done by conventional robots. These soft robots could be used in terrain that is difficult to access and in environments where they are exposed to chemicals or radiation that would harm electronically controlled robots made of metal.
Physics - Electroengineering - 22.01.2024
Topological Quantum Device Produced
A significant breakthrough has been achieved by quantum physicists from Dresden and Würzburg. They've created a semiconductor device where exceptional robustness and sensitivity are ensured by a quantum phenomenon. Semiconductor devices are tiny switching components that control electron flow in modern electronic devices.
Electroengineering - Transport - 30.11.2023
Radar signatures for drones: Measurement campaign in BiRa test facility
To ensure safe and efficient traffic, the various objects in road and air traffic must be able to quickly detect their spatial environment using radar and communicate with each other via radio networks. In order to investigate the radar reflection of a so-called VTOL drone (short for "Vertical Take-Off and Landing"), which can take off and land vertically without a runway, the Electronic Measurements and Signal Processing (EMS) Group at TU Ilmenau has set up a test facility at the BiRa test facility has just completed an extensive measurement campaign at the BiRa test facility.
Physics - Electroengineering - 26.10.2023
Spinaron, A Rugby in a Ball Pit
For the first time, experimental physicists from the Würzburg-Dresden Cluster of Excellence ct.qmat have demonstrated a new quantum effect aptly named the "spinaron." In a meticulously controlled environment and using an advanced set of instruments, they managed to prove the unusual state a cobalt atom assumes on a copper surface.
Physics - Electroengineering - 05.06.2023
Nonadiabatic tunneling is crucial for understanding high harmonic generation from semiconductors
Scientists reveal that nonadiabatic tunneling is crucial for understanding high harmonic generation from semiconductors When matter is exposed to highly intense electromagnetic radiation, nonlinearities of the material may lead to the emission of light that contains very high multiples of the incident frequency.
Electroengineering - Innovation - 05.05.2023
TU Ilmenau develops bio-inspired microphone for speech recognition
The Technische Universität Ilmenau, together with research partners, has developed a microphone inspired by biology that picks up sound similar to the human ear. The microphone could help improve speech recognition for controlling a variety of digital applications. In the future, the new process could even make overall acoustic systems consisting of a microphone and speech recognition more efficient, so that they consume less energy.
Physics - Electroengineering - 10.01.2023
Milestone for light-driven electronics
Within the framework of the Würzburg-Dresden Cluster of Excellence ct.qmat, excitons were generated in a topological insulator for the first time. A breakthrough in quantum research, based on material design from Würzburg. An international team of scientists collaborating within the Würzburg-Dresden Cluster of Excellence ct.qmat has achieved a breakthrough in quantum research - the first detection of excitons (electrically neutral quasiparticles) in a topological insulator.
Physics - Electroengineering - 06.12.2022
Long-range information transport in antiferromagnets
Antiferromagnets are suitable for transporting spin waves over long distances Smaller, faster, more powerful: The demands on microelectronic devices are high and are constantly increasing. However, if chips, processors and the like are based on electricity, there are limits to miniaturization. Physicists are therefore working on alternative ways of transporting information, such as about spin waves, also called magnons, for example.
Physics - Electroengineering - 21.11.2022
Long-range information transport in antiferromagnets
Physicists at JGU discovered: Antiferromagnets are suitable for transporting spin waves over long distances Smaller, faster, more powerful: The demands on microelectronic devices are high and continue to rise. However, if chips, processors and the like are based on electric current, there are limits to miniaturization.
Materials Science - Electroengineering - 03.11.2022
New material will make locally flexible diodes possible
Researchers find new material with significant potential for electronics applications Diodes allow directed flows of current. Without them, modern electronics would be inconceivable. Until now, they had to be made out of two materials with different characteristics. A research team at the Technical University of Munich (TUM) has now discovered a material that makes it possible to create a diode with a simple change in temperature.
Physics - Electroengineering - 11.08.2022
Unexpected quantum effects in natural double-layer graphene
International research team led by Göttingen University controls interaction of charge carriers An international research team led by the University of Göttingen has detected novel quantum effects in high-precision studies of natural double-layer graphene and has interpreted them together with the University of Texas at Dallas using their theoretical work.
Electroengineering - 09.05.2022
Bright, stable, and easy to recycle lighting
A low-cost and easy-to-manufacture lighting technology can be made with light-emitting electrochemical cells. Such cells are thin-film electronic and ionic devices that generate light after a low voltage is applied. Researchers at the Technical University of Munich (TUM) and the University of Turin have now used extensive data analysis to create first-class electrochemical cells from copper complexes that emit blue and white light.
Physics - Electroengineering - 03.03.2022
Waves on circular paths
Just as electrons flow through an electrical conductor, magnetic excitations can travel through certain materials. Such excitations, known in physics as "magnons" in analogy to the electron, could transport information much more easily than electrical conductors. An international research team has now made an important discovery on the road to such components, which could be highly energy-efficient and considerably smaller.