Physicists have observed a strange new quantum phase in a graphene-based system, where a superfluid appears to freeze into a solid-like state. Cooling usually pushes matter through a simple sequence.

We can learn a lot by studying microscopic and macroscopic changes in a material as it crosses from one phase to another, for example from ice to water to steam. A new study examines systems ...

When everyday matter is cooled, it follows a familiar path. A gas becomes a liquid, and with further cooling, that liquid turns into a solid. Quantum ...

Spinning around: superfluid vortices could provide an insight into their classical counterparts Quasiparticles within a rotating sample of superfluid helium-3 create unexpected friction in a material ...

Perhaps the best-known example of hysteresis is the response of the magnetization of a ferromagnetic material to an applied magnetic field. If the material is initially unmagnetized, slowly turning on ...