Latest Discoveries in Science and Technology Sound waves drive next-generation spintronics Context: Researchers have discovered a method to control spin currents using sound waves. This reduces energy loss and supports quantum computing and advanced communications. The Rise of Spintronics Spintronics utilizes electron spin instead of electric charge for data transmission. It offers lower energy consumption compared to conventional electronics. The Role of Magnons Magnons are magnetic wave excitations that carry information. They operate with significantly less energy loss than electrons. Research by INST Mohali Scientists from the Institute of Nano Science and Technology (INST) developed this new mechanism. The institute operates under the Department of Science and Technology. Use of Surface Acoustic Waves Surface acoustic waves are used to control magnon-based spin currents. These waves interact with magnetic materials and influence spin dynamics. Innovative Material Model Researchers used an ultra-thin magnetic material, similar to graphene. The material was placed on a piezoelectric substrate for analysis. Key Discovery Sound waves create minute deformations in the materials. These act as pseudo-magnetic fields that control magnon dynamics. Future Applications Opens up new possibilities for low-energy electronic devices. Useful for quantum computing and next-generation communication technologies. Herbicide-tolerant mustard hybrids Context: Starting from the 2026–27 Rabi season, India is set to begin large-scale cultivation of IMI-resistant mustard hybrids. About herbicide-tolerant mustard hybrids These crops help control a parasitic weed known as Orobanche, which attaches itself to the mustard plant's roots. As this weed absorbs water and nutrients from the crop, both the crop's growth and yield are adversely affected. Since this weed grows underground, removing it manually is extremely difficult. About IMI-resistant mustard hybrids These are mustard plants capable of surviving exposure to IMI-type herbicides. They are developed through natural mutation breeding rather than genetic modification. In other words, scientists utilize beneficial natural variations…
