Physics

Bilayer graphene

Nanotechnology

Membrane

Biology

Optics

Bilayer

Scattering

Materials science

Condensed matter physics

MAGIC (telescope)

Scattering rate

Graphene

Spectral line

Superconductivity

Quantum mechanics

Magic angle

Genetics

Physical Review Letters

Recent experiments on magic-angle twisted bilayer graphene have discovered correlated insulating behavior and superconductivity at a fractional filling of an isolated narrow band. In this paper we show that magic-angle bilayer graphene exhibits another hallmark of strongly correlated systems --- a broad regime of $T-$linear resistivity above a small, density dependent, crossover temperature--- for a range of fillings near the correlated insulator. We also extract a transport "scattering rate", which satisfies a near Planckian form that is universally related to the ratio of $(k_BT/\hbar)$. Our results establish magic-angle bilayer graphene as a highly tunable platform to investigate strange metal behavior, which could shed light on this mysterious ubiquitous phase of correlated matter.

Strange Metal in Magic-Angle Graphene with near Planckian Dissipation