Physical Review X

A moiré pattern in bilayer hexagonal boron nitride enhances the role of Coulomb interactions in a transition metal dichalcogenide, revealing strong electron correlations and offering insights into quantum materials and related exotic phenomena.

A new methodology to identify point defects in materials combines isotope substitution, polytype control, and first-principles calculations. Applied to hexagonal boron nitride, it identifies a UV color center as a carbon dimer.

Two new types of polariton Chern insulators rely on photonic crystals to achieve topological energy gaps over 10 meV—dramatically larger than previous efforts and well within reach experimentally.

Unlike conventional magnetic orders, topological spin textures in two-dimensional magnets show isotropic spin-wave speeds, offering a clear, general feature to identify topological order, aiding spintronics and magnetic materials discovery.

Efficient, all-electrical control of magnetism and light polarization in twisted bilayer MoTe${}_2$ demonstrates a way to link magnetic memory and optical communication in one device and offers a new tuning knob for manipulating zero-field anyons.

Experiments on twisted bilayer graphene Josephson junctions show that strong supercurrents persist even in flat electronic bands, revealing that quantum geometry and collective effects can sustain superconductivity without electron motion.

Ultrathin bismuth films grown on boron nitride host a high-mobility two-dimensional electron system dominated by spin-split surface states, revealing strong spin-orbit effects that could potentially enable stable, spin-based quantum behaviors at elevated temperatures.