Magnetic field induced effects in the high source-drain bias current of weakly coupled vertical quantum dot molecules

Abstract

We report on the basic properties of recently observed magnetic field resonance, induced time dependent oscillation, and hysteresis effects in the current flowing through two weakly coupled vertical quantum dots at high source-drain bias (up to a few tens of mV). These effects bare some similarity to those reported in the N=2 spin-blockade regime, usually for weak in-plane magnetic field, of quantum dot molecules and attributed to hyperfine coupling, except here the measurements are conducted outside of the spin-blockade regime and the out-of-plane magnetic field is up to ~6 T.

arXiv comment3 pages, 3 figures, accepted for publication in Physica E in EP2DS 17 conference proceedings

References in corpus (16)

• Driven coherent oscillations of a single electron spin in a quantum dot
• Control and Detection of Singlet-Triplet Mixing in a Random Nuclear Field
• Triplet-Singlet Spin Relaxation via Nuclei in a Double Quantum Dot
• Long-lived memory for mesoscopic quantum bits
• Nuclear spin induced oscillatory current in spin-blocked quantum dots
• Singlet-triplet spin blockade and charge sensing in a few-electron double quantum dot
• Nuclear spin state narrowing via gate--controlled Rabi oscillations in a double quantum dot
• Suppression of spin relaxation in an InAs nanowire double quantum dot
• Electron Transport in Double Quantum Dot governed by Nuclear Magnetic Field
• Large nuclear Overhauser fields detected in vertically-coupled double quantum dots
• Spin state mixing in InAs double quantum dots
• Self-Polarization and Dynamical Cooling of Nuclear Spins in Double Quantum Dots
• Dynamical nuclear spin polarization and the Zamboni effect in gated double quantum dots
• Current-Induced Entanglement of Nuclear Spins in Quantum Dots
• Selective Dynamic Nuclear Spin Polarization in Spin-Blocked Double-Dot
• Resonant Cooling of Nuclear Spins in Quantum Dots

Cited by in corpus (2)

• Nuclear Spin Dynamics in Double Quantum Dots: Fixed Points, Transients, and Intermittency
• Self-sustaining dynamical nuclear polarization oscillations in quantum dots