https://phys.org/news/2018-07-physicists.html

"We measured the exciton phase acquired due to coherent spin precession and observed long-range coherent spin transport in IX condensate," explained Butov. "Long-range spin transport can be explored for the development of new signal processing based on spins."

Using a specially crafted optical dilution refrigerator set at a very low temperature—0.1 Kelvin or 459.50 F below zero—Butov and his team transformed the IX gas to a condensate by the frigid temperature to achieve spin coherence at the range of 10 micrometers, a range conducive to the development of high-functioning devices exploring spin transfer.