Universal spin-Hall conductance fluctuations in two dimensions

Abstract

We report a theoretical investigation on spin-Hall conductance fluctuation of disordered four terminal devices in the presence of Rashba or/and Dresselhaus spin-orbital interactions in two dimensions. As a function of disorder, the spin-Hall conductance $G_{sH}$ shows ballistic, diffusive and insulating transport regimes. For given spin-orbit interactions, a universal spin-Hall conductance fluctuation (USCF) is found in the diffusive regime. The value of the USCF depends on the spin-orbit coupling $t_{so}$, but is independent of other system parameters. It is also independent of whether Rashba or Dresselhaus or both spin-orbital interactions are present. When $t_{so}$ is comparable to the hopping energy $t$, the USCF is a universal number $\sim 0.18e/4\pi$. The distribution of $G_{sH}$ crosses over from a Gaussian distribution in the metallic regime to a non-Gaussian distribution in the insulating regime as the disorder strength is increased.

to be published in Phys. Rev. Lett., 4 figures

References in corpus (9)

• Universal Intrinsic Spin-Hall Effect
• Dissipationless Quantum Spin Current at Room Temperature
• Experimental observation of the spin-Hall effect in a two dimensional spin-orbit coupled semiconductor system
• Spin current and polarization in impure 2D electron systems with spin-orbit coupling
• Suppression of the Persistent Spin Hall Current by Defect Scattering
• Spin-Hall Effect in Two-Dimensional Electron Systems with Rashba Spin-Orbit Coupling and Disorder
• Manifestation of the spin-Hall effect through transport measurements in the mesoscopic regime
• Mesoscopic Spin Hall Effect in Multiprobe Ballistic Spin-Orbit Coupled Semiconductor Bridges
• Variational study of the nu=1 quantum Hall ferromagnet in the presence of spin-orbit interaction

Cited by in corpus (39)

• Quantum transport in Rashba spin-orbit materials: A review
• Disorder-induced enhancement of transport through graphene p-n junctions
• Spin Nernst effect and Nernst effect in two-dimensional electron systems
• Intrinsic Spin Hall Effect Induced by Quantum Phase Transition in HgCdTe Quantum Wells
• Quantum spin Hall effect induced by electric field in silicene
• Influence of dephasing process on the quantum Hall effect and the spin Hall effect
• Spin-polarized current induced by a local exchange field in a silicene nanoribbon
• Mesoscopic Spin Hall Effect
• Spin Nernst effect in the absence of a magnetic field
• Non-linear Hall Effects: Mechanisms and Materials
• Universal quantized spin-Hall conductance fluctuation in graphene
• Zeeman ratchets: pure spin current generation in mesoscopic conductors with non-uniform magnetic fields
• Generation and Detection of Spin Currents in Semiconductor Nanostructures with Strong Spin-Orbit Interaction
• Universal Spin Hall Conductance Fluctuations in Chaotic Dirac Quantum Dots
• Extracting current-induced spins: spin boundary conditions at narrow Hall contacts
• Orbital Hall effect in mesoscopic devices
• Electrical probing of the spin conductance of mesoscopic cavities
• A variant transfer matrix method suitable for transport through multi-probe systems
• Extrinsic Entwined with Intrinsic Spin Hall Effect in Disordered Mesoscopic Bars
• Generalized correlation functions for conductance fluctuations and the mesoscopic spin Hall effect
• Reverse strain-induced snake states in graphene nanoribbons
• What can we learn about the dynamics of transported spins by measuring shot noise in spin-orbit-coupled nanostructures?
• Nonlinear Hall effect on a disordered lattice
• Spin-to-Charge Conversion of Mesoscopic Spin Currents
• Low field phase diagram of spin-Hall effect in the mesoscopic regime
• Geometric Correlations and Breakdown of Mesoscopic Universality in Spin Transport
• Mesoscopic fluctuations of spin currents
• Dynamical spin Hall conductivity in a magnetic disordered system
• Spin Hall angle fluctuations in a disorder device
• Pure spin current in a two-dimensional topological insulator
• Statistical properties of electrochemical capacitance in disordered mesoscopic capacitors
• Ferroelectric polarization controlled orbital Hall conductivity in a higher-order topological insulator: \textit{d1T}-phase monolayer MoS${}_2$
• Spin Hall angle in single-layer graphene
• Scattering Theory of Current-Induced Spin Polarization
• Coexistent multifractal mesoscopic fluctuations in Integer Quantum Hall Transition and in Orbital Hall Transition
• General method for calculating transport properties of disordered mesoscopic systems based on the nonequilibrium Green's function formalism
• Spin Seebeck Effect in Asymmetric Four-Terminal Systems with Rashba Spin-Orbit Coupling
• Interplay of Rashba spin orbit coupling and disorder in the conductance properties of a four terminal junction device
• Fermi energy sensitive universal conductance fluctuations in anisotropic materials