AI Insight
Scientists have identified a third category of magnetic materials called altermagnets, joining the previously known ferromagnets and antiferromagnets. Diamond-based quantum sensors are being developed to detect and study these elusive materials, which were discovered within the last decade. Altermagnets exhibit unique magnetic properties that combine characteristics of both traditional magnetic types at the atomic scale.
Why it matters
Altermagnets could enable the development of faster and more energy-efficient electronic devices by leveraging their distinctive magnetic properties. This discovery expands our understanding of magnetism and opens new possibilities for next-generation data storage and computing technologies.
Understand the Science
For nearly a century, there were two known kinds of magnets. Ferromagnets are the classic magnets that attract metal and keep pictures stuck to the refrigerator. Antiferromagnets hide their magnetism at the atomic scale but are increasingly prized for their technological potential. A third category discovered within the last decade may combine the best qualities of both. Dubbed altermagnets, they could someday help create faster, more energy-efficient electronics.
Source: Diamond quantum sensor could reveal elusive altermagnets