Measuring changes in magnetic order to find ways to transcend conventional electronics

Science Daily  September 6, 2019 Recent studies have shown that the antiferromagnetic AFM order parameter can be ‘switched’ (that is, change it from one known value to another, fast) using light or electric currents. However, the dynamics of the order-switching process are not understood. Current approaches rely on measuring only certain phenomena during AFM order switching and they are not reliable. An international team of researchers (Switzerland, Japan) used second-harmonic generation whose output value is directly related to the AFM order parameter and combined it with measurements of the Faraday effect. Combining these two different measurement methods, the researchers managed […]