“The team of scientist came up with the idea during their work at the TUM. Again and again, they were faced with the limits of conventional methods for reaching such low temperatures. The group therefore developed its own technology to ensure permanent cooling and founded kiutra GmbH in the summer of 2018,” TUM reports.
Liquefied gases are typically used to reach ultra-low temperatures. To get close to absolute zero (-273C), researchers in the past have used helium-3, a rare and expensive isotope. Magnetic cooling offers an alternative by generating low temps using inexpensive solids, but are not feasible for long-term use—they’re only good for a limited period of time.
Permanent magnetic cooling is the solution, but up to this point, actually implementing such a cooling system has proven difficult. Not anymore, apparently.
“We are the world’s first commercial supplier of a cooling system that can magnetically achieve temperatures close to absolute zero on a permanent basis,” says Alexander Regnat, one of the researchers. “Our great advantage is that we do not need expensive helium-3. All we need is electricity.”
With the problem of cooling out of the way, now the researchers just need to be careful not to get stuck in time.
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