All-electric-spin control in interference single electron transistors

Abstract

Single particle interference lies at the heart of quantum mechanics. The archetypal double-slit experiment has been repeated with electrons in vacuum up to the more massive $C_{60}$ molecules. Mesoscopic rings threaded by a magnetic flux provide the solid-state analogous. Intra-molecular interference has been recently discussed in molecular junctions. Here we propose to exploit interference to achieve all-electrical control of a single electron spin in quantum dots, a highly desirable property for spintronics and spin-qubit applications. The device consists of an interference single electron transistor (ISET), where destructive interference between orbitally degenerate electronic states produces current blocking at specific bias voltages. We show that in the presence of parallel polarized ferromagnetic leads the interplay between interference and the exchange coupling on the system generates an effective energy renormalization yielding different blocking biases for majority and minority spins. Hence, by tuning the bias voltage full control over the spin of the trapped electron is achieved.

9 pages, 5 figures

References in corpus (7)

• Coherent control of a single electron spin with electric fields
• Electric-field controlled spin reversal in a quantum dot with ferromagnetic contacts
• A benzene interference single-electron transistor
• Transport through graphene double dots
• Symmetry fingerprints of a benzene single-electron transistor
• Parametric spin excitations in lateral quantum dots
• Quantum Interference Controlled Molecular Electronics

Cited by in corpus (26)

• Controllable selective exfoliation of high-quality graphene nanosheets and nanodots by ionic liquid assisted grinding
• Density-operator approaches to transport through interacting quantum dots: Simplifications in fourth-order perturbation theory
• Full electrical control of Charge and Spin conductance through Interferometry of Edge States in Topological Insulators
• Graphical prediction of quantum interference-induced transmission nodes in functionalized organic molecules
• Controlling the transmission line shape of molecular t-stubs and potential thermoelectric applications
• Dark states in a carbon nanotube quantum dot
• Interference effects in the Coulomb blockade regime: current blocking and spin preparation in symmetric nanojunctions
• Transport mirages in single-molecule devices
• Apparent Reversal of Molecular Orbitals Reveals Entanglement
• Fano stability diagram of a symmetric triple quantum dot
• Theory of STM junctions for π-conjugated molecules on thin insulating films
• Spin quadrupoletronics: moving spin anisotropy around
• Duality for open fermion systems: energy-dependent weak coupling and quantum master equations
• Quantum transport through single-molecule junctions with orbital degeneracies
• Topographical fingerprints of many-body interference blocking in STM junctions on thin insulating films
• Dynamical symmetry breaking in vibration-assisted transport through nanostructures
• Spectrum and Franck-Condon factors of interacting suspended single-wall carbon nanotubes
• Destructive quantum interference in transport through molecules with electron-electron and electron-vibration interactions
• Current Correlations in a Quantum Dot Ring: A Role of Quantum Interference
• Spin-orbit interaction induces charge beatings in a lightwave-STM single molecule junction
• Vibration induced memory effects and switching in ac-driven molecular nanojunctions
• Master equation based steady-state cluster perturbation theory
• Manipulation and readout of spin states of a single-molecule magnet by a spin-polarized current
• Charge quenching at defect states in transition metal dichalcogenide-graphene van der Waals heterobilayers
• Interference and shot noise in a degenerate Anderson-Holstein model
• Dark versus blocking states in electronic transport: a Lee-Yang zero analysis of full counting statistics