18th century paint Cobalt Green will allow spintronics to work at room temperature To test the antique pigment the researchers processed zinc oxide, a simple semiconductor material, so that some of the zinc ions were replaced with ions of magnetic cobalt. The process is known as “doping”. The cobalt ions were then aligned by exposing the semiconductor to a zinc metal vapour. The alignment causes the material to become magnetic. The magnetism continued when the material was warmed to room temperature and when the exposure to the zinc metal vapour was stopped.
The research is still in its early stages. To be of use to chip-makers the technique must be shown to work and integrate with silicon semiconductors.
Brian Wang is a Futurist Thought Leader and a popular Science blogger with 1 million readers per month. His blog Nextbigfuture.com is ranked #1 Science News Blog. It covers many disruptive technology and trends including Space, Robotics, Artificial Intelligence, Medicine, Anti-aging Biotechnology, and Nanotechnology.
Known for identifying cutting edge technologies, he is currently a Co-Founder of a startup and fundraiser for high potential early-stage companies. He is the Head of Research for Allocations for deep technology investments and an Angel Investor at Space Angels.
A frequent speaker at corporations, he has been a TEDx speaker, a Singularity University speaker and guest at numerous interviews for radio and podcasts. He is open to public speaking and advising engagements.