Nonlinear dynamics of quantum dot nuclear spins

Abstract

We report manifestly nonlinear dependence of quantum dot nuclear spin polarization on applied magnetic fields. Resonant absorption and emission of circularly polarized radiation pumps the resident quantum dot electron spin, which in turn leads to nuclear spin polarization due to hyperfine interaction. We observe that the resulting Overhauser field exhibits hysteresis as a function of the external magnetic field. This hysteresis is a consequence of the feedback of the Overhauser field on the nuclear spin cooling rate. A semi-classical model describing the coupled nuclear and electron spin dynamics successfully explains the observed hysteresis but leaves open questions for the low field behaviour of the nuclear spin polarization.

7 pages, 4 figures

References in corpus (7)

• Electron spin decoherence in quantum dots due to interaction with nuclei
• Control and Detection of Singlet-Triplet Mixing in a Random Nuclear Field
• Triplet-Singlet Spin Relaxation via Nuclei in a Double Quantum Dot
• Hyperfine interaction in a quantum dot: Non-Markovian electron spin dynamics
• Nuclear spin induced oscillatory current in spin-blocked quantum dots
• Knight Field Enabled Nuclear Spin Polarization in Single Quantum Dots
• Dynamic nuclear polarization of a single charge-tunable InAs/GaAs quantum dot

Cited by in corpus (44)

• Nuclear spin physics in quantum dots: an optical investigation
• Confluence of resonant laser excitation and bi-directional quantum dot nuclear spin polarization
• Locking electron spins into magnetic resonance by electron-nuclear feedback
• Nuclear Spins in Nanostructures
• Suppression of spin relaxation in an InAs nanowire double quantum dot
• Dynamics of Quantum Dot Nuclear Spin Polarization Controlled by a Single Electron
• Dynamic nuclear spin polarization in resonant laser spectroscopy of a quantum dot
• Demagnetization of Quantum Dot Nuclear Spins: Breakdown of the Nuclear Spin Temperature Approach
• Quantum Description of Nuclear Spin Cooling in a Quantum Dot
• Efficient dynamical nuclear polarization in quantum dots: Temperature dependence
• Control of the direction and rate of nuclear spin flips in InAs quantum dots using detuned optical pulse trains
• Optically monitored nuclear spin dynamics in individual GaAs quantum dots grown by droplet epitaxy
• Hysteretic response of electron-nuclear spin system in single InAlAs quantum dots:Excitation power and polarization dependences
• Nonequilibrium nuclear-electron spin dynamics in semiconductor quantum dots
• Overhauser effect in individual InP/GaInP dots
• Polarization freezing of 10000 optically-cooled nuclear spins by coupling to a single electron
• General theory of feedback control of a nuclear spin ensemble in quantum dots
• Suppression of nuclear spin diffusion at a GaAs/AlGaAs interface measured with a single quantum dot nano-probe
• Long nuclear spin decay times controlled by optical pumping in individual quantum dots
• Fine structure and optical pumping of spins in individual semiconductor quantum dots
• Hyperfine interaction in InAs/GaAs self-assembled quantum dots : dynamical nuclear polarization versus spin relaxation
• Electron and nuclear spin properties of the nanohole-filled GaAs/AlGaAs quantum dots
• Persistent narrowing of nuclear-spin fluctuations in InAs quantum dots using laser excitation
• Electron-nuclei spin dynamics in II-VI semiconductor quantum dots
• Precise measurements of electron and hole g-factors of single quantum dots by using nuclear field
• The Nuclear Spin Nanomagnet
• Nuclear magnetic resonances in (In,Ga)As/GaAs quantum dots studied by resonant optical pumping
• From the artificial atom to the Kondo-Anderson model: orientation dependent magneto-photoluminescence of charged excitons in InAs quantum dots
• Hyperfine coupling of hole and nuclear spins in symmetric GaAs quantum dots
• Reconstruction of nuclear quadrupole interaction in (In,Ga)As/GaAs quantum dots observed by transmission electron microscopy
• Voltage control of electron-nuclear spin correlation time in a single quantum dot
• Hanle effect in (In,Ga)As quantum dots: Role of nuclear spin fluctuations
• Investigation of in-plane nuclear field formation in single self-assembled quantum dots
• Bistability of optically-induced nuclear spin orientation in quantum dots
• Signature of the Overhauser field on the coherent spin dynamics of donor-bound electron in a single CdTe quantum well
• Third Stable Branch and Tristability of Nuclear Spin Polarization in Single Quantum Dot System
• P-shell carriers assisted dynamic nuclear spin polarization in single quantum dots at zero external magnetic field
• Electrically tunable dynamic nuclear spin polarization in GaAs quantum dots at zero magnetic field
• Measurements of a fast nuclear spin dynamics in a single InAs quantum dot with positively charged exciton
• Nonlinear dynamics of superpostion of wavepackets
• Giant Hyperfine Interaction between a Dark Exciton Condensate and Nuclei
• Discretizing the Bistability of Mode-Locked Electron Spin Precession: An Overhauser Field Hysteresis Manifestation
• Exchange interaction-driven dynamic nuclear polarization in Mn-doped InGaAs/GaAs quantum dots
• Optical Spin Initialization and Non-Destructive Measurement in a Quantum Dot Molecule