New Quantum State of Matter Discovered at Interface of Exotic Materials

Researchers at Rutgers University have discovered a new quantum state of matter—a quantum liquid crystal—at the interface of two exotic materials: a Weyl semimetal and spin ice. This new state exhibits unique electronic anisotropy, conducting electricity differently in various directions, and shows rotational symmetry breaking at high magnetic fields. This discovery paves the way for developing new ultra-sensitive quantum magnetic field sensors that can operate under extreme conditions, such as in space or inside powerful machines. The research combined experimental and theoretical work, utilizing ultra-low temperatures and high magnetic fields provided by the National High Magnetic Field Laboratory.