Detection of very high frequency magnetic resonance could revolutionize electronics

Phys.org  January 27, 2020
A team of researchers in the US (UC Riverside, UC Santa Barbara) generated spin current in an antiferromagnet and were able to detect it electrically. They used terahertz radiation to pump up magnetic resonance in chromia to facilitate its detection. Although antiferromagnets are statically uninteresting, they are dynamically interesting. Electron spin precession in antiferromagnets is much faster than in ferromagnets, resulting in frequencies that are two-three orders of magnitude higher than the frequencies of ferromagnets—thus allowing faster information transmission…read more. TECHNICAL ARTICLE