Laser & Optoelectronics Progress, Volume. 62, Issue 15, 1500011(2025)
Dirac Fluid Behavior in Graphene (Invited)
In traditional condensed matter systems, the strong electron correlation effect is often weakened by shielding mechanism and lattice constraints. Graphene forms a unique non Fermi liquid state, Dirac fluid, near the electric neutral point by virtue of its linear dispersion relationship, the unshielded nature of long-range Coulomb interaction, and the relativistic dynamics of massless carriers. It has become an ideal platform for studying quantum critical transport and collective fluid behavior. In recent years, with the continuous development of high-quality material preparation technology, many theoretical predictions of Dirac fluid have been verified. Based on the band structure of graphene and the theoretical framework of Dirac electron hydrodynamics, this paper systematically reviews the key experimental progress in this field, including the universal scale of quantum critical conductivity, the significant violation of Wiedemann Franz law, the non local transport behavior of viscous flow, and the imaging technology of real space electron flow field.
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Zeyu Jin, Yuwei Zhuang, Guangliang Niu, Lidong Zhang, Zhenjie Duan, Wenyu Zhao. Dirac Fluid Behavior in Graphene (Invited)[J]. Laser & Optoelectronics Progress, 2025, 62(15): 1500011
Category: Reviews
Received: Apr. 11, 2025
Accepted: Jun. 4, 2025
Published Online: Aug. 11, 2025
The Author Email: Wenyu Zhao (zhaowenyu@hust.edu.cn)
CSTR:32186.14.LOP250987