Stationary and transient leakage current in the Pauli spin blockade

Abstract

We study the effects of cotunneling and a non-uniform Zeeman splitting on the stationary and transient leakage current through a double quantum dot in the Pauli spin blockade regime. We find that the stationary current due to cotunneling vanishes at low temperature and large applied magnetic field, allowing for the dynamical preparation of a pure spin ground state, even at large voltage bias. Additionally, we analyze current that flows between blocking events, characterized, in general, by a fractional effective charge $e^{\ast }$. This charge can be used as a sensitive probe of spin relaxation mechanisms and can be used to determine the visibility of Rabi oscillations.

arXiv commentv1: 4 pages; v2: 4 pages+ additional supplementary material, version to appear in PRL

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Cited by in corpus (26)

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• Nuclear Spins in Nanostructures
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• Strong spin-orbit interaction and $g$-factor renormalization of hole spins in Ge/Si nanowire quantum dots
• Magnetic field dependence of Pauli spin blockade: a window into the sources of spin relaxation in silicon quantum dots
• Hyperfine-induced valley mixing and the spin-valley blockade in carbon-based quantum dots
• Silicon quantum dot devices with a self-aligned second gate layer
• Spin-valley blockade in carbon nanotube double quantum dots
• Leakage-current lineshapes from inelastic cotunneling in the Pauli spin blockade regime
• Anisotropic g-Factor and Spin-Orbit Field in a Ge Hut Wire Double Quantum Dot
• Gate-Tunable Spin-Orbit Coupling in a Germanium Hole Double Quantum Dot
• Microscopic models for charge-noise-induced dephasing of solid-state qubits
• Electron spin relaxation of single phosphorus donors in metal-oxide-semiconductor nanoscale devices
• Nuclear Spin Dynamics in Double Quantum Dots: Fixed Points, Transients, and Intermittency
• Nuclear Spin Dynamics in Double Quantum Dots: Multi-Stability, Dynamical Polarization, Criticality and Entanglement
• Theory of electronic properties and quantum spin blockade in a gated linear triple quantum dot with one electron spin each
• Pauli spin blockade in CMOS double quantum dot devices
• Magnetoconductance signatures of chiral domain-wall bound states in magnetic topological insulators
• Balancing coherent and dissipative dynamics in a central-spin system
• Self-sustaining dynamical nuclear polarization oscillations in quantum dots
• Spin-orbit enabled quantum transport channels in a two-hole double quantum dot
• Dynamical nuclear spin polarization induced by electronic current through double quantum dots
• Temperature-dependent dynamical nuclear polarization bistabilities in double quantum dots in the spin-blockade regime
• Pauli spin blockade with site-dependent g-tensors and spin-polarized leads
• Three-carrier spin blockade and coupling in bilayer graphene double quantum dots
• Direct measurement of spin-flip rates in single-electron tunneling