Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Li, Songci"'
Autor:
Gindikin, Yasha, Li, Songci, Levchenko, Alex, Kamenev, Alex, Chubukov, Andrey V., Maslov, Dmitrii L.
We demonstrate that the optical conductivity of a Fermi liquid (FL) in the absence of umklapp scattering is dramatically affected by the topology of the Fermi surface (FS). Specifically, electron-electron (ee) scattering leads to rapid current relaxa
Externí odkaz:
http://arxiv.org/abs/2406.10503
Publikováno v:
Phys. Rev. B 109, 075401 (2024)
We develop a hydrodynamic description of electron magnetotransport in conductors without Galilean invariance in the presence of a weak long-range disorder potential. We show that magnetoresistance becomes strong (of order 100 %) at relatively small f
Externí odkaz:
http://arxiv.org/abs/2310.12195
Publikováno v:
Phys. Rev. B 108, 235125 (2023)
We study the optical conductivity of a pristine two-dimensional electron system near an Ising-nematic quantum critical point. We discuss the relation between the frequency scaling of the conductivity and the shape of the Fermi surface, namely, whethe
Externí odkaz:
http://arxiv.org/abs/2309.12571
Autor:
Hasan, Jaglul, Nesterov, Konstantin N., Li, Songci, Houzet, Manuel, Meyer, Julia S., Levchenko, Alex
Publikováno v:
Phys. Rev. B 106, 214518 (2022)
In two-dimensional electron systems with broken inversion and time-reversal symmetries, a Josephson junction reveals an anomalous response: the supercurrent is nonzero even at zero phase difference between two superconductors. We consider details of
Externí odkaz:
http://arxiv.org/abs/2210.01037
Publikováno v:
Phys. Rev. B 106, L201306 (2022)
We study hydrodynamic electron magnetotransport in graphene devices. We show that in these systems a distinct mechanism of magnetoresistance appears, which is absent in systems with Galilean-invariant electron liquid. The resulting magnetoresistance
Externí odkaz:
http://arxiv.org/abs/2209.02710
Publikováno v:
Phys. Rev. B 106, 125304 (2022)
We develop a theory of fluctuation-driven phenomena in thermal transport in graphene double-layers. We work in the regime of electron hydrodynamics and focus on the double charge neutrality point. Although at the neutrality point charge transport is
Externí odkaz:
http://arxiv.org/abs/2206.07718
Autor:
Li, Songci, Levchenko, Alex
Publikováno v:
Phys. Rev. B 105, L241405 (2022)
The pursuit for clearly identifiable signatures of viscous electron flow in the solid state systems has been a paramount task in the search of the hydrodynamic electron transport behavior. In this work, we investigate theoretically the nonlocal elect
Externí odkaz:
http://arxiv.org/abs/2204.14104
Publikováno v:
Phys. Rev. B 105, 155307 (2022)
We consider hydrodynamic electron transport in the Hall-bar geometry. The theory is developed for systems with non-Galilean-invariant electron liquids. We show that inhomogeneity of the electron density induced by long-range disorder and gating leads
Externí odkaz:
http://arxiv.org/abs/2202.10472
Publikováno v:
Phys. Rev. B 105, 125302 (2022)
We study hydrodynamic electron transport in Corbino graphene devices. Due to the irrotational character of the flow, the forces exerted on the electron liquid are expelled from the bulk. We show that in the absence of Galilean invariance, force expul
Externí odkaz:
http://arxiv.org/abs/2112.08379
Autor:
Krebs, Zachary J., Behn, Wyatt A., Li, Songci, Smith, Keenan J., Watanabe, Kenji, Taniguchi, Takashi, Levchenko, Alex, Brar, Victor W.
Publikováno v:
Science 379, 671-676 (2023)
The flow of charge carriers in materials can, under some circumstances, mimic the flow of viscous fluids. In order to visualize the consequences of such effects, new methodologies must be developed that can probe the quasiparticle flow profile with n
Externí odkaz:
http://arxiv.org/abs/2106.07212