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Research Highlight

Correlated electrons enter the extreme quantum limit

Strained SrNbO3 films yielded a Dirac semi-metal phase with high-mobility electrons, leading to the discovery of fractional quantum states and giant mass enhancement in the extreme quantum limit (XQL).

Work discovered the first oxide-based Dirac semimetal reaching the XQL, providing a novel strategy to create correlated topological quantum materials with exotic physical phenomena useful for next-generation microelectronics and quantum information science.

DOI: 10.1126/sciadv.abf9631