Researchers discovered unique magnetic properties of ruthenium at room temperature, according to a study conducted on May 25, 2018.
This study was conducted by the researchers at the University of Minnesota. According to the study, ruthenium is the fourth single element to have unique magnetic properties at room temperature. This development could be used to improve sensors, devices in the computer memory and logic industry, or other devices using magnetic materials.
Until now, only three elements were found to be ferromagnetic at room temperature, which includes iron (Fe), cobalt (Co), and nickel (Ni). Magnetic materials play a major role in industry and modern technology, and have been used for fundamental studies and in many everyday applications such as sensors, electric motors, generators, hard disk media, and most recently spintronic memories.
Todd Younkin, the director of Defense Advanced Research Projects Agency (DARPA)-sponsored consortia at Semiconductor Research Corporation (SRC) said, “Spintronic devices are of rapidly increasing importance to the semiconductor industry. Fundamental advances in our understanding of magnetic materials, such as those demonstrated in this study by Professor Wang and his team, is critical to realizing continued breakthroughs in computing performance and efficiency.”
According to the researchers, this study will open way for fundamental studies of this new ferromagnetic Ruthenium. Ruthenium is interesting, as it is resistant to oxidation, and has high thermal stability, which is an important feature for scaling magnetic properties. Examination of this high thermal stability is the focus of ongoing research at the University of Minnesota.