Researchers developed a low-cost, scalable terahertz amplifier that could be used to make antenna arrays that can steer and focus high-frequency terahertz waves, for applications like high-resolution radar, high-speed communications, and medical imaging.
Rapid, localized heat management is essential for electronic devices and could have applications ranging from wearable materials to burn treatment. While so-called thermoelectric materials convert temperature differences to electrical voltage and vice versa, their efficiency is often limited, and their production is costly and wasteful. Researchers have now used a 3D printing technique to fabricate […]
Engineers have developed a versatile swimming robot that nimbly navigates cluttered water surfaces. Inspired by marine flatworms, the innovative device offers new possibilities for environmental monitoring and ecological research.
For decades, scientists have sought ways to counter our dependence on lithium-ion batteries. These traditional, rechargeable batteries energize today's most ubiquitous consumer electronics -- from laptops to cell phones to electric cars. But raw lithium is expensive and is often sourced through fragile geopolitical networks. This month, chemists have announced an exciting alternative that relies […]
Understanding the conductivity of metals involves exploring their high electron mobility, Ohm’s law, and quantum mechanical models like Drude and Sommerfeld. This article discusses how...
Explore the fascinating world of antiferromagnetic resonance, where materials like hematite and Yttrium Orthoferrite reveal the hidden dynamics of opposing magnetic moments. Dive into the...
Electron paramagnetic resonance (EPR) spectroscopy, also called electron spin resonance (ESR), is a technique for studying materials with unpaired electrons, such as organic and inorganic...
Electrons prefer parallel spins due to the quantum mechanical concept of exchange energy, which lowers their system's total energy. This preference is a result of...