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Date Time Researchers Find Semimetal That Clings to a Quantum Precipice Scientists studying a special kind of semimetals have found a material with an unusually pristine nature that could be crucial for developing powerful new quantum technologies and discovering new phases of matter. In an open access paper published in Science Advances, Johns Hopkins physicists and colleagues at Rice University, the Vienna University of Technology (TU Wien), and the National Institute of Standards and Technology (NIST), present experimental evidence of naturally occurring quantum criticality in a material. Criticality is the point at which a material hovers between two phases-like the slushy transition between water and ice-without ever settling. Useful materials often exploit this point. For example, air conditioners use compressors to change refrigerant from gas to liquid, and the “liquid crystals” of a commonplace liquid crystal display (LCD) are situated at a transition between liquid a

Collin broholmPeter blahaSilke paschenJosea rodriguez riveraAndrey sidorenkoHannes winklerQimiao siYiming qiuJohns hopkinsWesley fuhrmanEuropean union horizonJohns hopkins universityDepartment of energy basic sciencesUniversity of marylandNeutron researchJohns hopkins institute for quantum matter