All articles tagged with #supersolid
Scientists using graphene bilayers under a strong magnetic field observed excitons behaving as a superfluid at high density, but as density decreases the excitons halt and the material becomes insulating; heating restores the superfluid, a result that could point to a supersolid-like excitonic state or another unusual quantum phase, though measurements are not yet definitive.
Physicists using two closely spaced graphene layers, a strong magnetic field, and ultracold temperatures observed bilayer excitons transition from a superfluid to an insulating, lattice-like state (interpreted as a supersolid) and then revert back to a superfluid, marking the first reported reversible superfluid-to-supersolid transition in this system in a Nature study led by Cory Dean and colleagues.
Scientists at the University of Innsbruck have successfully stirred a supersolid, a state of matter that exhibits both solid and superfluid properties, providing direct evidence of its dual nature. This breakthrough, published in Nature, involved creating quantized vortices, which are indicative of superfluidity, by using magnetic fields to rotate the supersolid. The research could help simulate extreme phenomena like those in neutron stars, where superfluid vortices are believed to cause rotational speed changes.
Physicists at the University of Innsbruck have successfully imaged quantum vortices in a supersolid, confirming the existence of this paradoxical phase of matter that combines properties of both solids and superfluids. This discovery, published in Nature, provides crucial evidence for supersolids, which may also exist in the interiors of neutron stars. The research could help explain phenomena in extreme cosmic environments, such as pulsar glitches, and advance understanding of exotic phases of matter like high-temperature superconductors.
Physicists in China have observed a material in a supersolid phase of matter for the first time, using a compound called NBCP with atoms arranged in triangular lattices. By exposing the material to a magnetic field and measuring its magnetocaloric effect, they were able to detect the spin states of the atoms and their transitions, confirming the material's supersolid state. This observation is expected to open new possibilities for studying quantum phenomena and simulating novel materials.