Nuclear spin pumping and electron spin susceptibilities
arXiv:1011.3378 · doi:10.1103/PhysRevB.83.245306
Abstract
In this work we present a new formalism to evaluate the nuclear spin dynamics driven by hyperfine interaction with non-equilibrium electron spins. To describe the dynamics up to second order in the hyperfine coupling, it suffices to evaluate the susceptibility and fluctuations of the electron spin. Our approach does not rely on a separation of electronic energy scales or the specific choice of electronic basis states, thereby overcoming practical problems which may arise in certain limits when using a more traditional formalism based on rate equations.
9 pages, 2 figures
References in corpus (15)
- Spintronics: Fundamentals and applications
- Quantum Computation with Quantum Dots
- Spins in few-electron quantum dots
- Electron spin decoherence in quantum dots due to interaction with nuclei
- Control and Detection of Singlet-Triplet Mixing in a Random Nuclear Field
- Nuclear spin induced oscillatory current in spin-blocked quantum dots
- Suppressing Spin Qubit Dephasing by Nuclear State Preparation
- Electron Spin Dephasing due to Hyperfine Interactions with a Nuclear Spin Bath
- Locking electron spins into magnetic resonance by electron-nuclear feedback
- Nuclear Spin Switch in Semiconductor Quantum Dots
- Suppression of spin relaxation in an InAs nanowire double quantum dot
- Pauli Spin Blockade in the Presence of Strong Spin-Orbit Coupling
- Electrically-Driven Reverse Overhauser Pumping of Nuclear Spins in Quantum Dots
- Multiple Nuclear Polarization States in a Double Quantum Dot
- Nuclear spin effect in metallic spin valve