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Rejuvenation of hydrodynamic transport in solids provides a new window to study collective motion of electrons, where electrons behave like a viscous fluid akin to classical liquids. Experimental observations of such exotic states have not…

量子物理 · 物理学 2022-09-13 Weiwei Chen , W. Zhu

Viscous flow of interacting electrons in two dimensional materials features a bunch of exotic effects. A model resembling the Navier-Stokes equation for classical fluids accounts for them in the so called hydrodynamic regime. We performed a…

介观与纳米尺度物理 · 物理学 2025-07-01 Jorge Estrada-Álvarez , Francisco Domínguez-Adame , Elena Díaz

We study magnetohydrodynamics using holography. The gravity model is closely related to the STU supergravity in five dimensions and admits an analytical black brane solution carrying the conserved charge dual to the magnetic 1-form symmetry…

高能物理 - 理论 · 物理学 2024-09-25 Yanqi Wang , Peng-Ju Hu , Yi Pang

We present a hydrodynamic theory for electron-hole magnetotransport in graphene incorporating carrier-population imbalance, energy, and momentum relaxation processes. We focus on the electric response and find that the carrier and energy…

介观与纳米尺度物理 · 物理学 2019-01-30 Hong-Yi Xie , Alex Levchenko

Recent years have seen a surge of interest in studies of hydrodynamic transport in electronic systems. We investigate the electron viscosity of metals and find a new component that is closely related to Coulomb drag. Using the linear…

介观与纳米尺度物理 · 物理学 2020-05-06 Yunxiang Liao , Victor Galitski

The giant transverse magnetoresistance is observed in the case of photoinduced nonequilibrium carriers in an asymmetric undoped system of three GaAs/AlGaAs quantum wells at room temperature. In a magnetic field of 75 kOe, the resistance of…

材料科学 · 物理学 2007-05-23 V. I. Tsebro , O. E. Omel'yanovskii , V. V. Kapaev , Yu. V. Kopaev , V. I. Kadushkin

We study the fully nonlinear, nonlocal dynamics of two-dimensional multicomponent vesicles in a shear flow with matched viscosity of the inner and outer fluids. Using a nonstiff, pseudo-spectral boundary integral method, we investigate…

软凝聚态物质 · 物理学 2016-11-01 Kai Liu , Gary R. Marple , Shuwang Li , Shravan Veerapaneni , John Lowengrub

We show that Coulomb drag in hydrodynamic bilayer systems leads to additional viscosity terms in the hydrodynamic equations, i.e., the drag and drag-Hall viscosities, besides the well-known kinematic and Hall viscosities. These new…

介观与纳米尺度物理 · 物理学 2023-03-29 Eddwi H. Hasdeo , Edvin G. Idrisov , Thomas L. Schmidt

We have investigated the magnetoresistance of strongly asymmetric double-well structures formed by a thin AlGaAs barrier grown far from the interface in the GaAs buffer of standard heterostructures. In magnetic fields oriented parallel to…

介观与纳米尺度物理 · 物理学 2009-11-07 P. Svoboda , Y. Krupko , L. Smrcka , M. Cukr , T. Jungwirth , L. Jansen

The transport properties of interacting electrons for which the spin degree of freedom is taken into account are numerically studied for small two dimensional diffusive clusters. On-site electron-electron interactions tend to delocalize the…

介观与纳米尺度物理 · 物理学 2009-11-07 Richard Berkovits , Jan W. Kantelhardt

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…

介观与纳米尺度物理 · 物理学 2022-06-14 Songci Li , Alex Levchenko

We report on theoretical studies of the recently discovered negative giant magnetoresistance in ultraclean two-dimensional electron systems at low temperatures. We adapt a transport model to a ultraclean scenario and calculate the elastic…

介观与纳米尺度物理 · 物理学 2015-06-22 Jesús Inarrea

The low-temperature($4.2<T<12.5$ K) magnetotransport ($B<2$ T) of two-dimensional electrons occupying two subbands (with energy $E_1$ and $E_2$) is investigated in GaAs single quantum well with AlAs/GaAs superlattice barriers. Two series of…

介观与纳米尺度物理 · 物理学 2009-11-26 A. V. Goran , A. A. Bykov , A. I. Toropov , S. A. Vitkalov

We report a magnetotransport study of an ultra-high mobility ($\bar{\mu}\approx 25\times 10^6$\,cm$^2$\,V$^{-1}$\,s$^{-1}$) $n$-type GaAs quantum well up to 33 T. A strong linear magnetoresistance (LMR) of the order of 10$^5$ % is observed…

介观与纳米尺度物理 · 物理学 2017-01-04 T. Khouri , U. Zeitler , C. Reichl , W. Wegscheider , N. E. Hussey , S. Wiedmann , J. C. Maan

Inertial effects in nonlinear magnetic reconnection are studied within the context of 2D electron magnetohydrodynamics (EMHD) with resistive and viscous dissipation. Families of nonlinear solutions for relevant current sheet parameters are…

等离子体物理 · 物理学 2015-05-13 A. Zocco , L. Chacon , Andrei N. Simakov

We report on high-order magnetoplasmon resonances detected in photoresistance in high-mobility GaAs quantum wells. These resonances manifest themselves as a series of photoresistance extrema in the regime of Shubnikov-de Haas oscillations.…

介观与纳米尺度物理 · 物理学 2016-05-04 Q. Shi , M. A. Zudov , L. N. Pfeiffer , K. W. West , J. D. Watson , M. J. Manfra

We determine the density-dependent electron mass, m*, in two-dimensional (2D) electron systems of GaAs/AlGaAs heterostructures by performing detailed low-temperature Shubnikov deHaas measurements. Using very high quality transistors with…

介观与纳米尺度物理 · 物理学 2007-05-23 Y. -W. Tan , J. Zhu , H. L. Stormer , L. N. Pfeiffer , K. W. Baldwin , K. W. West

Shubnikov-de-Haas oscillations were studied under high magnetic field in Bi$_2$Se$_3$ nanostructures grown by Chemical Vapor Transport, for different bulk carrier densities ranging from $3\times10^{19}\text{cm}^{-3}$ to…

One of the most remarkable features of the Quark Gluon Plasma is its nearly perfect fluidity behavior indicated by the small shear viscosity to entropy density ratio obtained from fitting relativistic viscous hydrodynamics flow harmonics to…

核理论 · 物理学 2015-12-22 Jacquelyn Noronha-Hostler

We report magnetotransport measurements in a HgTe quantum well with an inverted band structure, which is expected to be a two-dimensional (2D) topological insulator. A small magnetic field perpendicular the 2D layer breaks the time reversal…

介观与纳米尺度物理 · 物理学 2013-02-28 G. M. Gusev , E. B Olshanetsky , Z. D. Kvon , N. N. Mikhailov , S. A. Dvoretsky