Phys.org May 24, s018
A team of researchers in the US (University of Minnesota, University of Wisconsin, industry) has demonstrated single element ferromagnetism in ruthenium. They observed a saturation magnetization of 148 and 160 emu cm−3 at room temperature and 10 K, respectively. Increasing thickness results in strain relaxation, and thus diluting the magnetization. Anomalous Hall measurements are used to confirm its ferromagnetic behavior. The discovery could be used to improve sensors, devices in the computer memory and logic industry, or other devices using magnetic materials… read more. Open Access TECHNICAL ARTICLE
This schematic illustrates how a tetragonal phase of Ru has been forced using ultra-thin film growth methods. Credit: University of Minnesota, Quarterman et al, Nature Communications