Valley susceptibility of an interacting two-dimensional electron system

Abstract

We report direct measurements of the valley susceptibility, the change of valley population in response to applied symmetry-breaking strain, in an AlAs two-dimensional electron system. As the two-dimensional density is reduced, the valley susceptibility dramatically increases relative to its band value, reflecting the system's strong electron-electron interaction. The increase has a remarkable resemblance to the enhancement of the spin susceptibility and establishes the analogy between the spin and valley degrees of freedom.

5 pages, 2 figures

References in corpus (13)

• Quantum Computation with Quantum Dots
• Correlation energy and spin polarization in the 2D electron gas
• Spin Degree of Freedom in a Two-Dimensional Electron Liquid
• The low-density spin susceptibility and effective mass of mobile electrons in Si inversion layers
• Spin Susceptibility of an Ultra-Low Density Two Dimensional Electron System
• Indication of the ferromagnetic instability in a dilute two-dimensional electron system
• Valley splitting of AlAs two-dimensional electrons in a perpendicular magnetic field
• Spin susceptibility of two-dimensional electrons in narrow AlAs quantum wells
• In-plane magnetic field-induced spin polarization and transition to insulating behavior in two-dimensional hole systems
• Low-temperature, in situ tunable, uniaxial stress measurements in semiconductors using a piezoelectric actuator
• Observation of Quantum Hall Valley Skyrmions
• Dependence of spin susceptibility of a two-dimensional electron system on the valley degree of freedom
• Giant low-temperature piezoresistance effect in AlAs two-dimensional electrons

Cited by in corpus (128)

• Berry Phase Effects on Electronic Properties
• Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides
• Control of valley polarization in monolayer MoS2 by optical helicity
• Valley polarization in MoS2 monolayers by optical pumping
• Emerging Device Applications for Semiconducting Two-Dimensional Transition Metal Dichalcogenides
• MoS_2 as an ideal material for valleytronics: valley-selective circular dichroism and valley Hall effect
• Valley contrasting physics in graphene: magnetic moment and topological transport
• Optical Generation of Excitonic Valley Coherence in Monolayer WSe2
• Valley Dependent Optoelectronics from Inversion Symmetry Breaking
• Three-band tight-binding model for monolayers of group-VIB transition metal dichalcogenides
• Magnetic Control of Valley Pseudospin in Monolayer WSe2
• Concepts of Ferrovalley Material and Anomalous Valley Hall Effect
• Electrical control of the valley Hall effect in bilayer MoS2 transistors
• Robust optical emission polarization in MoS2 monolayers through selective valley excitation
• Valley Vortex States in Sonic Crystals
• Magnetoelectric effects and valley controlled spin quantum gates in transition metal dichalcogenide bilayers
• Coupling the valley degree of freedom to antiferromagnetic order
• Exciton Diamagnetic Shifts and Valley Zeeman Effects in Monolayer WS${}_2$ and MoS${}_2$ to 65 Tesla
• Control of interlayer excitons in two-dimensional van der Waals heterostructures
• Intrinsic spin Hall effect in monolayers of group-VI dichalcogenides: A first-principles study
• Enhanced Light-Matter Interaction in Two-Dimensional Transition Metal Dichalcogenides
• Valley-dependent properties of monolayer MoSi${}_2$N${}_4$, WSi${}_2$N${}_4$ and MoSi${}_2$As${}_4$
• Intervalley Scattering and Localization Behaviors of Spin-Valley Coupled Dirac Fermions
• Valley-spin polarized Landau levels in a monolayer semiconductor
• Graphene Nanobubbles as Valley Filters and Beamsplitters
• Valley Polarization by Spin Injection in a Light-Emitting van der Waals Heterojunction
• Electrically tunable valley dynamics in twisted WSe${}_2$/WSe${}_2$ bilayers
• Gate controlled spin-valley locking of resident carriers in WSe2 monolayers
• Valley-Layer Coupling: A New Design Principle for Valleytronics
• Controlled Growth of a Line Defect in Graphene and Implications for Gate-Tunable Valley Filtering
• Observation of Acoustic Valley Vortex States and Valley-Chirality Locked Beam Splitting
• Charge Nematicity and Electronic Raman Scattering in Iron-based Superconductors
• Gapless interface states between topological insulators with opposite Dirac velocities
• Binding energies and spatial structures of small carrier complexes in monolayer transition metal dichalcogenides via diffusion Monte Carlo
• Intrinsic valley Hall transport in atomically thin MoS2
• Spatially Resolving Valley Quantum Interference of a Donor in Silicon
• Universal Quantum Computing with Spin and Valley
• Coulomb Correlations and the Wigner-Mott Transition
• Electrically tunable polarizer based on two-dimensional orthorhombic ferrovalley materials
• Theory and Experimental Investigation of the Quantum Valley Hall Effect
• Perfect Valley Filter in Topological Domain Wall
• Valley polarization and susceptibility of composite fermions around nu=3/2
• Valley-polarized magnetoconductivity and particle-hole symmetry breaking in a periodically modulated $\alpha$-${\mathcal{T}}_3$ lattice
• Anomalous temperature-dependent spin-valley polarization in monolayer WS${}_2$
• Valley-polarized quantum anomalous Hall phase and disorder induced valley-filtered chiral edge channels
• Tunable spin polarization and electronic structure of bottom-up synthesized MoSi${}_2$N${}_4$ materials
• Strain-driven valley states and phase transitions in Janus VSiGeN4 monolayer
• Optical generation and detection of pure valley current in monolayer transition metal dichalcogenides
• Magnetoresistance and valley degree of freedom in bulk bismuth
• Valley and spin pump by scattering at non-magnetic disorders
• Spin-valley phase diagram of the two-dimensional metal-insulator transition
• Density dependence of valley polarization energy for composite fermions
• Observation of spontaneous valley polarization of itinerant electrons
• Valley polarization assisted spin polarization in two dimensions
• Even-denominator Fractional Quantum Hall Effect at a Landau Level Crossing
• Strain-induced valley polarization, topological states, and piezomagnetism in two-dimensional altermagnetic V${}_2$Te${}_2$O, V${}_2$STeO, V${}_2$SSeO, and V${}_2$S${}_2$O
• Measuring valley polarization in two-dimensional materials with second-harmonic spectroscopy
• Controlling exciton many-body states by the electric-field effect in monolayer MoS${}_2$
• Valley interference and spin exchange at the atomic scale in silicon
• Valley filtering effect of phonons in graphene with a grain boundary
• Spontaneous valley polarization of interacting carriers in a monolayer semiconductor
• Contrast between spin and valley degrees of freedom
• Thermal engineering in low-dimensional quantum devices: a tutorial review of nonequilibrium Green's function methods
• Spin Susceptibility of Interacting Two-dimensional Electrons with Anisotropic Effective Mass
• Ultrafast valley-selective coherent optical manipulation with excitons in WSe${}_2$ and MoS${}_2$ monolayers
• Strain control of exciton and trion spin-valley dynamics in monolayer transition metal dichalcogenides
• Valley Degree of Freedom in Two-Dimensional van der Waals Materials
• Detection of thermodynamic "valley noise" in monolayer semiconductors: access to intrinsic valley relaxation timescales
• Unconventional anisotropic even-denominator fractional quantum Hall state in a system with mass anisotropy
• Multivalley two-dimensional electron system in an AlAs quantum well with mobility exceeding $2\times 10^6$ cm${}^2$V${}^{-1}$s${}^{-1}$
• Tuning of the spin-orbit interaction in two-dimensional GaAs holes via strain
• Valley contrasting bulk photovoltaic effect in antiferromagnetic MnPSe${}_3$ monolayer
• Valley dependent many-body effects in 2D semiconductors
• A valleytronic diamond transistor: electrostatic control of valley-currents and charge state manipulation of NV centers
• Design rules for modulation-doped AlAs quantum wells
• Theoretical study of even denominator fractions in graphene: Fermi sea versus paired states of composite fermions
• Spin-valley interplay in two-dimensional disordered electron liquid
• Pseudospin Electronics in Phosphorene Nanoribbons
• Valley-Polarized quantum Hall phase in a strain-controlled Dirac system
• Universal enhancement of superconductivity in two dimensional semiconductors at low doping by electron-electron interaction
• Dependence of Effective Mass on Spin and Valley Degrees of Freedom
• Stability of Polarized States for Diamond Valleytronics
• Microscopic theory of cavity-confined monolayer semiconductors: polariton-induced valley relaxation and the prospect of enhancing and controlling the valley pseudospin by chiral strong coupling
• Parallel Magnetic Field Tuning of Valley Splitting in AlAs Two-Dimensional Electrons
• Gap states and valley-spin filtering in transition metal dichalcogenide monolayers
• Superconducting states and Majorana modes in transition-metal dichalcogenides under inhomogeneous strain
• Realization of a Valley Superlattice
• Graphene membrane as a pressure gauge
• Scattering in Monolayer Molybdenum Disulfide Quantum Dot
• Donor binding energy and thermally activated persistent photoconductivity in high mobility (001) AlAs quantum wells
• Nematic metal in a multi-valley electron gas: Variational Monte Carlo analysis and application to AlAs
• Magnetoelectric effect in bilayer graphene controlled by valley-isospin density
• AlAs 2D electrons in an antidot lattice: Electron pinball with elliptical Fermi contours
• Orbital-dependent quasiparticle scattering interference in 3R-NbS2
• Valley degeneracy in biaxially strained aluminum arsenide quantum wells
• Interaction between interface and massive states in multivalley topological heterostructures
• Observation of Topological Structures in Photonic Quantum Walks
• Orbital and spin order in oxide two-dimensional electron gases
• Scale-dependent theory of the disordered electron liquid
• On the impact of strain on the electronic properties of InAs/GaSb quantum well systems
• Anisotropic low-temperature piezoresistance in (311)A GaAs two-dimensional holes
• Theory of Coulomb driven nematicity in a multi-valley two-dimensional electron gas
• Enhancement of valley susceptibility upon complete spin-polarization
• Disordered electron liquid in double quantum well heterostructures: Renormalization group analysis and dephasing rate
• Emergence of Rashba spin valley state in two-dimensional strained bismuth oxychalcogenides Bi${}_2$O${}_2$Se
• Fractional quantum Hall valley ferromagnetism in the extreme quantum limit
• Valley-dependent electronic properties in two-dimensional altermagnetic iron-based transition metal chalcogenides
• Switchable valley functionalities of an $n-n^{-}-n$ junction in 2D semiconductors
• Optimized correlations inspired by perturbation theory
• Anomalous giant piezoresistance in AlAs 2D electrons with anti-dot lattices
• Universal Spin Dynamics in Quantum Wires
• Graphene valley polarization as a function of carrier-envelope phase in few-cycle laser pulses and its footprints in harmonic signals
• Re-Symmetrizing the Broken Symmetry with Isotropic Hydrostatic Pressure
• Cross-over behavior of disordered interacting two-dimensional electron systems in a parallel magnetic field
• Valley-dependent giant orbital moments and transport feature in rhombohedral graphene multilayers
• Theory of Nonlocal Transport from Nonlinear Valley Responses
• Dynamical spin-spin susceptibility of Silicene
• Effects of strain-tunable valleys on charge transport in bismuth
• Developing fractional quantum Hall states at $\nu$ = $\frac{1}{7}$ and $\frac{2}{11}$ in the presence of significant Landau level mixing
• Temperature dependence of piezoresistance of composite Fermions with a valley degree of freedom
• Valley Gapless Semiconductor: Models and Applications
• Pseudospin Polarization of Composite Fermions under Uniaxial Strain
• Self-trapped spatially localized states in combined linear-nonlinear periodic potentials
• Valley polarization dynamics of photoinjected carriers at the band edge in room-temperature silicon studied by terahertz polarimetry
• Exchange Enhancement of the Electron-Phonon Interaction: the Case of Weakly Doped Two-Dimensional Multivalley Semiconductors
• Strain Modulated Electronic and Optical Properties of Laterally Stitched MoSi2N4/XSi2N4 (X=W, Ti) 2D Heterostructures
• Anomalous Landau level gaps near magnetic transitions in monolayer WSe${}_2$
• Quantum oscillations of valley current driven by microwave irradiation in transition-metal dichalcogenide/ferromagnet hybrids