Frozen helium-4 may be an unusual 'superglass'
Friday, May 1, 2009 - 13:56
in Physics & Chemistry
(PhysOrg.com) -- When helium is cooled to around 4 degrees above absolute zero, it turns liquid. Make it a couple of degrees cooler, and it becomes a "superfluid" that flows without resistance from its container, just as electrons flow without resistance in a superconductor.