Quantum-critical conductivity of the Dirac fluid in graphene
Abstract
Electrons can move through graphene in a manner reminiscent of fluids, if the conditions are right. Two groups studied the nature of this hydrodynamic flow in different regimes (see the Perspective by Lucas). Gallagher et al. measured optical conductivity using a waveguide-based setup, revealing signatures of quantum criticality near the charge neutrality point. Berdyugin et al. focused on electron transport in the presence of a magnetic field and measured a counterintuitive contribution to the Hall response that stems from hydrodynamic flow.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 12, 2019
- Source ID
- 10.1126/science.aat8687
Entities
People
- Chan-Shan Yang
- Fanglin Tian
- Feng Wang
- Hai Zhang
- Kenji Watanabe
- Patrick Gallagher
- Rai Kou
- Tairu Lyu
- Takashi Taniguchi
Organizations
- Japan Science and Technology Agency
- Japan Society for the Promotion of Science
- Jiangxi University of Water Resources and Electric Power
- Lawrence Berkeley National Laboratory
- Ministry of Education, Culture, Sports, Science and Technology
- Nankai University
- National Institute for Materials Science
- National Science and Technology Council
- Office of Basic Energy Sciences
- Office of Naval Research
- University of California