[Tu-A1-B] Emerging technologies in 2D materials

9:00 AM - 9:15 AM JST(12:00 AM - 12:15 AM UTC)

[Tu-A1-B-01] Supersonic Electron Flow and Hydraulic Jump in an Electronic de Laval Nozzle

〇Johannes Geurs¹, Tatiana Webb^1,2, Yinjie Guo¹, Itai Keren¹, Jack Farrell³, Jikai Xu¹, Kenji Watanabe⁴, Takashi Taniguchi⁴, Dimitri N. Basov¹, James Hone¹, Andrew Lucas³, Abhay Pasupathy^1,5, Cory R. Dean¹ (1. Columbia University (USA), 2. Barnard College (USA), 3. University of Colorado Boulder (USA), 4. National Institute for Materials Science (Japan), 5. Brookhaven National Laboratory (USA))

We exploit the low electronic velocity of sound in bilayer graphene to accelerate carriers until their sudden relaxation in a shock. This was probed through combined transport and scanning Kelvin probe measurements, and demonstrates compressible flow in a solid state system.