For the first time in the world, NIMS and Tohoku University jointly observed an anisotropic magneto-Peltier effect -- a thermoelectric conversion phenomenon in which simple redirection of the flow of a charge current in a magnetic material induces heating and cooling.
Magnetic sensors play a key role in a variety of applications, such as speed and position sensing in the automotive industry or in biomedical applications. Within the framework of the Christian Doppler Laboratory 'Advanced Magnetic Sensing and Materials' headed by Dieter Süss novel magnetic sensors have been realized that surpass conventional technologies in performance and accuracy in a cooperation between the University of Vienna, the Danube University Krems and Infineon AG.
In a collaborative study involving Equal Channel Angular Extrusion (ECAE), a unique severe plastic deformation (SPD) process, researchers Dr. Ibrahim Karaman from Texas A&M University and Drs. Don Susan and Andrew Kustas of Sandia National Laboratories were able to improve the mechanical properties of magnetic alloys without changing their magnetic properties through microstructural refinement. This process has proven to be troublesome in the past.
Scientists from EPFL and Canada have developed a novel and unambiguous way to track energy flow in polyatomic molecules at ultrashort timescales.
Every time we send an e-mail, a tweet, or stream a video, we rely on laser light to transfer digital information over a complex network of optical fibers. Dozens of high-performance lasers are needed to fill up the bandwidth and to squeeze in an increasing amount of digital data. Researchers have now shown that all these lasers can be replaced by a single device called a microcomb.
Researchers have developed a better bolometer, a device for measuring electromagnetic radiation. The new technology, from MIT and elsewhere, is faster, simpler, and covers more wavelengths.
In 1965, a renowned Princeton University physicist theorized that ferroelectric metals could conduct electricity despite not existing in nature. For decades, scientists thought it would be impossible to prove the theory by Philip W. Anderson, who shared the 1977 Nobel Prize in physics. It was like trying to blend fire and water, but a Rutgers-led international team of scientists has verified the theory and their findings are published online in Nature Communications.
Researchers at the University of California, Riverside, have, for the first time, successfully used electric dipoles to completely suppress electron transfer in one direction while accelerating in the other. The discovery could aid development of improved solar cells and other energy-conversion devices and hasten the design of new and superb energy and electronic materials.
A team of scientists working at Berkeley Lab has confirmed a special property known as 'chirality' -- which potentially could be exploited to transmit and store data in a new way -- in nanometers-thick samples of multilayer materials that have a disordered structure.
Scientists led by Rice University and Los Alamos National Laboratory have discovered properties in naturally occurring solution-processed quantum wells that are likely to impact the growing field of low-cost perovskite based optoelectronics. They created a general scaling law that researchers can use to determine how to tune the electronic properties of 2D perovskite-based materials for devices.