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相关论文: Measuring Hall Viscosity of Graphene's Electron Fl…

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We study a graphene Hall probe located on top of a magnetic surface as a detector of skyrmions, using as working principle the anomalous Hall effect produced by the exchange interaction of the graphene electrons with the non-coplanar…

介观与纳米尺度物理 · 物理学 2017-10-18 Francesca Finocchiaro , Jose Luis Lado , Joaquin Fernandez-Rossier

The discovery of the hydrodynamic electron liquid (HEL) in graphene [D. Bandurin \emph{et al.}, Science {\bf 351}, 1055 (2016) and J. Crossno \emph{et al.}, Science {\bf 351}, 1058 (2016)] has marked the birth of the solid-state HEL which…

介观与纳米尺度物理 · 物理学 2021-09-17 L. F. Man , W. Xu , Y. M. Xiao , H. Wen , L. Ding , B. Van Duppen , F. M. Peeters

We develop a theory of magnetoresistance of two-dimensional electron systems in a smooth disorder potential in the hydrodynamic regime. Our theory applies to two-dimensional semiconductor structures with strongly correlated carriers when…

介观与纳米尺度物理 · 物理学 2017-03-22 Alex Levchenko , Hong-Yi Xie , A. V. Andreev

When smooth, zero-on-average, periodic magnetic and electric fields are applied to a carbon mono-layer (graphene), a gap between the valence and conduction band is introduced. Here this gapped state is studied analytically. It is found that…

介观与纳米尺度物理 · 物理学 2013-02-25 I. Snyman

We explore the dependence of electrical transport in a graphene field effect transistor (GraFET) on the flow of the liquid within the immediate vicinity of that transistor. We find large and reproducible shifts in the charge neutrality…

介观与纳米尺度物理 · 物理学 2012-05-15 A. K. M. Newaz , D. A. Markov , D. Prasai , K. I. Bolotin

In high-quality conductors, the hydrodynamic regime of electron transport has been recently realized. In this work we theoretically investigate magnetotransport of a viscous electron fluid in samples with electron-impermeable obstacles. We…

介观与纳米尺度物理 · 物理学 2023-08-01 P. S. Alekseev , A. P. Dmitriev

We present a mesoscopic approach to analyze the dynamics of a single magnetic dipole under the influence of an oscillating magnetic field, based on the formulation of a Fokker-Planck equation. The dissipated power and the viscosity of a…

凝聚态物理 · 物理学 2016-09-07 A. Perez Madrid , T. Alarcon , J. M. G. Vilar , J. M. Rubi

We discuss the contribution of magnetic Skyrmions to the Hall viscosity and propose a simple way to identify it in experiments. The topological Skyrmion charge density has a distinct signature in the electric Hall conductivity that is…

强关联电子 · 物理学 2017-12-22 Bom Soo Kim

We present a single electron approach to analyse the magnetotransport properties of the monolayer graphene as a function of both, the gate voltage and the magnetic field; and, also, their evolution with temperature. The model proposed means…

介观与纳米尺度物理 · 物理学 2014-04-23 M. A. Hidalgo

Electron vortices are the quintessential signature of a viscous electron fluid. For decades, their detection relied on indirect transport measurements with persistently debated interpretations. Recently, scanning magnetometry enabled direct…

介观与纳米尺度物理 · 物理学 2026-04-06 Andrey A. Shevyrin , Askhat K. Bakarov , Arthur G. Pogosov

Spin, anomalous, and valley Hall effects in graphene-based hybrid structures are studied theoretically within the Green function formalism and linear response theory. Two different types of hybrid systems are considered in detail: (i)…

介观与纳米尺度物理 · 物理学 2017-05-10 A. Dyrdał , J. Barnaś

We show how a Hall viscosity induced by a magnetic field can be generated in strongly coupled theories with a holographic dual. This is achieved by considering parity-breaking higher derivative terms in the gravity dual. These terms couple…

高能物理 - 理论 · 物理学 2019-10-02 Carlos Hoyos , Francisco Peña-Benitez , Piotr Witkowski

The wave nature of electrons in low-dimensional structures manifests itself in conventional electrical measurements as a quantum correction to the classical conductance. This correction comes from the interference of scattered electrons…

介观与纳米尺度物理 · 物理学 2009-03-27 F. V. Tikhonenko , A. A. Kozikov , A. K. Savchenko , R. V. Gorbachev

Hydrodynamic flow of charge carriers in graphene is an energy flow unlike the usual mass flow in conventional fluids. In neutral graphene, the energy flow is decoupled from the electric current, making it difficult to observe the…

介观与纳米尺度物理 · 物理学 2021-08-26 B. N. Narozhny , I. V. Gornyi , M. Titov

In this paper, we develop a unified theory for describing Hall effect in various electronic systems based on a pure electron picture (without the hole concept). We argue that the Hall effect is the magnetic field induced symmetry breaking…

强关联电子 · 物理学 2009-01-26 X. Q. Huang

We study the Hall effect in diluted plasmas within the two-fluids theory. Composed by two distinct species with opposite charge, such as electrons and ions in fully ionised hydrogen, the plasma is driven by an electric field through a…

等离子体物理 · 物理学 2016-12-20 Nicola Offeddu , Miller Mendoza

The flux flow regime of high-T$_{\rm c}$ samples of different normal state resistivities is studied in the temperature range where the sign of the Hall effect is reversed. The scaling of the vortex viscosity with normal state resistivity is…

supr-con · 物理学 2009-10-30 J. I. Martin , M. Velez , F. Guinea , J. L. Vicent

The Hall effect arises in a plasma when electrons are able to drift with the magnetic field but ions cannot. In a fully-ionized plasma this occurs for frequencies between the ion and electron cyclotron frequencies because of the larger ion…

天体物理学 · 物理学 2009-11-13 B. P. Pandey , Mark Wardle

In this paper I report a pedagogical derivation of the unconventional electronic hydrodynamics in graphene on the basis of the kinetic theory. While formally valid in the weak coupling limit, this approach allows one to derive the…

介观与纳米尺度物理 · 物理学 2019-10-30 Boris N. Narozhny

We report on the formation of critical states in disordered graphene, at the origin of variable and unconventional transport properties in the quantum Hall regime, such as a zero-energy Hall conductance plateau in the absence of an energy…

介观与纳米尺度物理 · 物理学 2016-03-23 Nicolas Leconte , Frank Ortmann , Alessandro Cresti , Stephan Roche