The phenomenon was coined the "fractional quantum anomalous Hall effect," and theorists have been keen to find an explanation for how fractional charge can emerge from pentalayer graphene.

Here, the authors explore the phase diagram of a twisted bilayer ... interaction-driven Haldane insulator, fractional quantum anomalous Hall effect and quantum spin Hall insulators.

An international research team led by Mayukh Kumar Ray, Mingxuan Fu, and Satoru Nakatsuji from the University of Tokyo, along ...

New research unveils the first experimental evidence of the anomalous Hall effect arising in a collinear antiferromagnet ...

When an electric current passes through some materials, it generates a voltage perpendicular to the direction in which the ...

An international research team has discovered the anomalous Hall effect in a collinear antiferromagnet. More strikingly, the anomalous Hall effect emerges from a non-Fermi liquid state, in which ...

There are a seemingly endless number of quantum states that ... Materials (ProQM), discovered an anomalous—aka, magnet-free—fractional quantum Hall effect in layers of molybdenum ditelluride ...

There are a seemingly endless number of quantum states that describe quantum matter and the strange phenomena that emerge when large numbers of electrons interact. For decades, many of these states ...