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Electroengineering - Physics - 22.06.2022
New Ultrathin Capacitor Could Enable Energy-Efficient Microchips
Scientists turn century-old material into a thin film for next-gen memory and logic devices Electron microscope images show the precise atom-by-atom structure of a barium titanate (BaTiO3) thin film sandwiched between layers of strontium ruthenate (SrRuO3) metal to make a tiny capacitor. (Credit: Lane Martin/Berkeley Lab) - By Rachel Berkowitz The silicon-based computer chips that power our modern devices require vast amounts of energy to operate.

Physics - Electroengineering - 17.06.2022
Boosting light power revolutionizes communications and autopilot
Boosting light power revolutionizes communications and autopilot
Scientists have built a compact waveguide amplifier by successfully incorporating rare-earth ions into integrated photonic circuits. The device produces record output power compared to commercial fiber amplifiers, a first in the development of integrated photonics over the last decades. Erbium-doped fiber amplifiers (EDFAs) are devices that can provide gain to the optical signal power in optical fibers, often used in long-distance communication fiber optic cables and fiber-based lasers.

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.

Health - Electroengineering - 09.05.2022
Multi-Tasking Wearable Continuously Monitors Glucose, Alcohol, and Lactate
Imagine being able to measure your blood sugar levels, know if you've had too much to drink, and track your muscle fatigue during a workout, all in one small device worn on your skin. Engineers at the University of California San Diego have developed a prototype of such a wearable that can continuously monitor several health stats—glucose, alcohol, and lactate levels—simultaneously in real-time.

Physics - Electroengineering - 14.04.2022
Silicon-carbide modulator overcomes decades long ’missing block’
A collaboration with Harvard University has led to the development of a new-generation electro-optic modulator that could stamp out its bulky predecessor through the creation of a smaller, stronger, cooler, faster and cost-effective on-chip system. The new modulator was made possible through the harnessing of a 'difficult' compound - silicon carbide.

Physics - Electroengineering - 14.04.2022
Graphene-hBN breakthrough to spur new LEDs, quantum computing
Study uncovers first method for producing high-quality, wafer-scale, single-layer hexagonal boron nitride In a discovery that could speed research into next-generation electronics and LED devices, a University of Michigan research team has developed the first reliable, scalable method for growing single layers of hexagonal boron nitride on graphene.

Electroengineering - 13.04.2022
Record Amounts of Zero-carbon Electricity Generation and Storage Now Seeking Grid Interconnection
Berkeley Lab-led study shows over 1,300 gigawatts of solar, storage, and wind in interconnection queues - an indicator of a major energy transition underway, even if most proposed projects will not be built New research from Berkeley Lab finds a large number of solar and wind energy projects seeking grid connection.

Physics - Electroengineering - 07.04.2022
Engineered crystals could help computers run on less power
Researchers at the University of California, Berkeley, have created engineered crystal structures that display an unusual physical phenomenon known as negative capacitance. Incorporating this material into advanced silicon transistors could make computers more energy efficient. (UC Berkeley image by Ella Maru Studio) Computers may be growing smaller and more powerful, but they require a great deal of energy to operate.

Physics - Electroengineering - 24.03.2022
Scientists Uncover Surprising New Clues to Exotic Superconductors' Superpowers
Scientists Uncover Surprising New Clues to Exotic Superconductors’ Superpowers
Study leverages one of the most powerful magnets on Earth to probe a new model of a mysterious metal A research team has uncovered new clues into the exotic behavior of unconventional superconductors - devices that efficiently carry electrical current with zero resistance in ways that defy our previous understanding of physics.

Materials Science - Electroengineering - 14.03.2022
Scientists create new lead-free piezoelectric materials
Scientists create new lead-free piezoelectric materials
Researchers have discovered that gadolinium-doped cerium oxide, a compound they created in the lab, could be a promising alternative to certain piezoelectric materials: it has the same proprieties yet may be 100 times more effective. It's also lead-free, unlike the best piezoelectric materials, which means that it could be employed in bio-compatible medical applications.

Physics - Electroengineering - 03.03.2022
Waves on circular paths
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.

Physics - Electroengineering - 11.02.2022
Kagome Metals Baffle Science
Kagome Metals Baffle Science
Toward a new kind of superconductivity: An international team of physicists finds joint appearance of intricate quantum phenomena. Toward a new kind of superconductivity: In the past four years scientists have discovered metals whose crystal structure mimics that of a traditional Japanese woven bamboo pattern: kagome metals.

Physics - Electroengineering - 20.01.2022
Quantum tech: Semiconductor 'flipped' to insulator above room temp
Quantum tech: Semiconductor ’flipped’ to insulator above room temp
A semiconducting material that performed a quantum "flip” from a conductor to an insulator above room temperature has been developed at the University of Michigan. It potentially brings the world closer to a new generation of quantum devices and ultra-efficient electronics. Observed in two-dimensional layers of tantalum sulfide only a single atom thick, the exotic electronic structure that supported this quantum flip was previously only stable at ultra-cold temperatures of -100 degrees Fahrenheit.

Physics - Electroengineering - 30.11.2021
Quantum physics across dimensions: Unidirectional Kondo Scattering
Quantum physics across dimensions: Unidirectional Kondo Scattering
An international team led by scientists, has unveiled a unique quantum-mechanical interaction between electrons and topological defects in layered materials that has only been observed in engineered atomic thin layers. The phenomenon can be reproduced by the native defects of lab grown large crystals, making future investigation of Kondo systems and quantum electronic devices more accessible.

Physics - Electroengineering - 26.11.2021
Programmable Interaction between Quantum Magnets
Programmable Interaction between Quantum Magnets
The forces between particles, atoms, molecules, or even macroscopic objects like magnets are determined by the interactions of nature. For example, two closely lying bar magnets realign themselves under the influence of magnetic forces. A team led by Matthias Weidemüller and Dr Gerhard Zürn at the Center for Quantum Dynamics of Heidelberg University has now succeeded in its aim to change not only the strength but also the nature of the interaction between microscopic quantum magnets, known as spins.

Physics - Electroengineering - 08.11.2021
Doppler effect and sonic boom in graphene devices opens new direction in quantum electronics research
A team including researchers from The University of Manchester's National Graphene Institute (NGI) has revealed that sonic boom and Doppler-shifted sound waves can be created in a graphene transistor, giving new insights into this advanced material and its potential for use in nanoscale electronic technologies.

Physics - Electroengineering - 13.10.2021
How to force photons to never bounce back
How to force photons to never bounce back
Scientists have developed a topology-based method that forces microwave photons to travel along a one way path, despite unprecedented levels of disorder and obstacles on their way. This discovery paves the way to a new generation of high-frequency circuits and extremely robust, compact communication devices.

Materials Science - Electroengineering - 28.09.2021
Scientists create material that can both move and block heat
Unusual material could improve the reliability of electronics and other devices Moving heat around where you want it to go-adding it to houses and hairdryers, removing it from car engines and refrigerators-is one of the great challenges of engineering. All activity generates heat, because energy escapes from everything we do.

Physics - Electroengineering - 01.09.2021
Rice physicists find ’magnon’ origins in 2D magnet
Topological feature could prove useful for encoding information in electron spins Rice physicists have confirmed the topological origins of magnons, magnetic features they discovered three years ago in a 2D material that could prove useful for encoding information in the spins of electrons. Rice University graduate student Lebing Chen used a high-temperature furnace to make chromium triiodide crystals that yielded the 2D materials for experiments at Oak Ridge National Laboratory's Spallation Neutron Source.

Electroengineering - Economics / Business - 30.08.2021
New Report Shows Technology Advancement and Value of Wind Energy
New Report Shows Technology Advancement and Value of Wind Energy
Berkeley Lab research finds that societal value of wind is far in excess of costs Wind energy continues to see strong growth, solid performance, and low prices in the U.S., according to a report released by the U.S. Department of Energy (DOE) and prepared by Lawrence Berkeley National Laboratory ÜBerkeley Lab).
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