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Hydrodynamic flow occurs in an electron liquid when the mean free path for electron-electron collisions is the shortest length scale in the problem. In this regime, transport is described by the Navier-Stokes equation, which contains two…

介观与纳米尺度物理 · 物理学 2016-03-08 Alessandro Principi , Giovanni Vignale , Matteo Carrega , Marco Polini

The hydrodynamic flow of the chiral electron fluid in a Weyl semimetal slab of finite thickness is studied by using the consistent hydrodynamic theory. The latter includes viscous, anomalous, and vortical effects, as well as accounts for…

强关联电子 · 物理学 2018-05-23 E. V. Gorbar , V. A. Miransky , I. A. Shovkovy , P. O. Sukhachov

The analytical expressions for both diagonal and off-diagonal ac and dc conductivities of graphene placed in an external magnetic field are derived. These conductivities exhibit rather unusual behavior as functions of frequency, chemical…

介观与纳米尺度物理 · 物理学 2008-11-26 V. P. Gusynin , S. G. Sharapov

In this paper we study the dynamical properties of charged systems immersed in an external magnetic field and perturbed by a set of scalar operators breaking translations either spontaneously or pseudo-spontaneously. By combining…

高能物理 - 理论 · 物理学 2021-05-19 Andrea Amoretti , Daniel Arean , Daniel K. Brattan , Nicodemo Magnoli

In turbulence, for neutral or conducting fluids, a large ratio of scales is excited because of the possible occurrence of inverse cascades to large, global scales together with direct cascades to small, dissipative scales, as observed in…

流体动力学 · 物理学 2020-02-03 Annick Pouquet , Julia E. Stawarz , Duane Rosenberg

Persistent currents driven by a static magnetic flux parallel to the carbon nanotube axis are investigated. Owing to the hexagonal symmetry of graphene the Fermi contour expected for a 2D-lattice reduces to two points. However the electron…

介观与纳米尺度物理 · 物理学 2009-11-07 M. Szopa , M. Marganska , E. Zipper

We show for unit dynamical exponent, $z=1$, the appearance of the Fermi liquid and non-Fermi liquid behavior as we tune the charge density and the magnetic field in 3+1 dimensional field theory using the gauge-gravity duality. There exists…

高能物理 - 理论 · 物理学 2012-02-17 Shesansu Sekhar Pal

We study electronic transport in graphene under the influence of a transversal magnetic field $\f{B}(\f{r})=B(x)\f{e}_z$ with the asymptotics $B(x\to\pm\infty)=\pm B_0$, which could be realized via a folded graphene sheet in a constant…

介观与纳米尺度物理 · 物理学 2013-01-18 Friedemann Queisser , Ralf Schützhold

Electron spin transport in a disordered metal is theoretically studied from the hydrodynamic viewpoint focusing on the role of electron vorticity. The spin-resolved momentum flux density of electrons is calculated taking account of the…

介观与纳米尺度物理 · 物理学 2021-11-17 Gen Tatara

The intrinsic anomalous Hall effect is one of the most exciting manifestations of the geometric properties of the electronic wave-function. Here, we predict that the electronic wave-function's geometric nature also gives rise to a purely…

介观与纳米尺度物理 · 物理学 2021-04-07 Kamal Das , Amit Agarwal

Inspired by recent experiments by Geim et al. we discuss the classical theory of the Hall effect of a 2 dimensional electron gas in an inhomogeneous magnetic field. The field modulation is in the form of flux tubes created by a…

凝聚态物理 · 物理学 2016-08-14 Kasper Juel Eriksen , Per Hedegård

The study reports the aspects of postimpact hydrodynamics of ferrofluid droplets on superhydrophobic SH surfaces in the presence of a horizontal magnetic field. A wide gamut of dynamics was observed by varying the impact Weber number We,…

流体动力学 · 物理学 2021-02-24 Nilamani Sahoo , Gargi Khurana , Devranjan Samanta , Purbarun Dhar

We investigate the electron-hole two-stream instability (or Coulomb drag) in intrinsic bilayer graphene in the hydrodynamic regime, accounting for the effects of temperature, initial drift velocity, magnetic field, and collisions. The…

介观与纳米尺度物理 · 物理学 2022-12-05 Vasco Pinhão , Pedro Cosme , Hugo Terças

This Letter presents a magnetohydrodynamic model that describes the small-amplitude fluctuations with wavelengths comparable to ion inertial length in the presence of a relativistically strong mean magnetic field. The set of derived…

等离子体物理 · 物理学 2023-10-31 Y. Kawazura

The recent observation [R. V. Gorbachev et al., Science {\bf 346}, 448 (2014)] of nonlocal resistance $R_\mathrm{NL}$ near the Dirac point (DP) of multiterminal graphene on aligned hexagonal boron nitride (G/hBN) has been interpreted as the…

介观与纳米尺度物理 · 物理学 2018-09-19 J. M. Marmolejo-Tejada , J. H. García , M. Petrović , P. -H. Chang , X. -L. Sheng , A. Cresti , P. Plecháč , S. Roche , B. K. Nikolic

We study optical conductivities for high-Tc superconductors under the magnetic field on the basis of the microscopic Fermi liquid theory. Current vertex corrections (CVC's) are correctly taken into account to satisfy the conservation laws,…

强关联电子 · 物理学 2007-05-23 Hiroshi Kontani

We developed a unified mesoscopic transport model for graphene nanoribbons, which combines the non-equilibrium Green's function (NEGF) formalism with the real-space {\pi}-orbital model. Based on this model, we probe the spatial…

介观与纳米尺度物理 · 物理学 2010-09-13 S. Bala Kumar , M. B. A. Jalil , S. G. Tan , Gengchiau Liang

We report measurements of the thermopower $S$ and Nernst signal $S_{yx}$ in graphene in a magnetic field $H$. Both quantities show strong quantum oscillations vs. the gate voltage $V_g$. Our measurements for Landau Levels of index $n\ne 0$…

介观与纳米尺度物理 · 物理学 2009-09-11 Joseph G. Checkelsky , N. P. Ong

We report on magneto-transport measurement in disordered graphene under pulsed magnetic field of up to 57T. For large electron or hole doping, the system displays the expected anomalous Integer Quantum Hall Effect (IQHE) specific to…

介观与纳米尺度物理 · 物理学 2015-05-18 J. M. Poumirol , W. Escoffier , A. Kumar , M. Goiran , B. Raquet , J. M. Broto

We examine nonlinear transport in a viscous two-dimensional electron fluid within narrow GaAs channels. The differential magnetoresistance shows nonmonotonic behavior, a signature of electron pairing in the hydrodynamic regime. Theoretical…

介观与纳米尺度物理 · 物理学 2026-02-03 A. D. Levin , G. M. Gusev , A. K. Bakarov
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