Explanipedia

Magnetizing weak links by time-dependent spin-orbit interactions: momentum conserving and non-conserving processes Open

Debashree Chowdhury, O. Entin‐Wohlman, Amnon Aharony, R. I. Shekhter, M. Jonson · 2025

Rashba spin-orbit interactions generated by time-dependent electric fields acting on weak links (that couple together non-magnetic macroscopic leads) can magnetize the junction. The Rashba spin-orbit interaction that affects the spins of e…

Creation of two-dimensional circular motion of charge qubit Open

L. Y. Gorelik, S. I. Kulinich, R. I. Shekhter, D. Radić · 2024

We suggest a nanoelectromechanical setup which generates a particular type of motion - the circular motion of mesoscopic superconducting grain, where motion is described by entangled nanomechanical coherent states. The setup is based on me…

Nanomechanical ancilla qubits generator for error correction algorithms in quantum computation Open

D. Radić, L. Y. Gorelik, S. I. Kulinich, R. I. Shekhter · 2024

We suggest a nanoelectromechanical setup that generates properly entangled ancillary ("ancilla") qubits for error correction algorithms in quantum computing, demonstrated as an encoder for the three-qubit bit flip code. The setup is based …

Andreev probing of Cooper-pair flying qubit Open

Sunghun Park, L. Y. Gorelik, S. I. Kulinich, Hee Chul Park, C. Kim , et al. · 2023

We propose a nanomechanical device which can actuate and probe a flying qubit that can be used to facilitate quantum information transfer over a long distance. The flying qubit is formed by a movable Cooper pair box (CPB) consisting of a s…

Nanomechanical manipulation of superconducting charge-qubit quantum networks Open

D. Radić, Leonid I. Gorelik, S. I. Kulinich, R. I. Shekhter · 2023

We suggest a nanoelectromechanical setup and corresponding time-protocol for controlling parameters in order to demonstrate nanomechanical manipulation of superconducting charge-qubit quantum network. We illustrate it on an example reflect…

Magnetization near a constriction between BCS superconductors by spin-dependent tunneling Open

O. Entin‐Wohlman, R. I. Shekhter, M. Jonson, Amnon Aharony · 2023

Spin-dependent electron tunneling through a voltage-biased micro-constriction between two bulk superconductors is shown to create a static magnetization near the constriction and an ac Josephson-like spin current. Although spin-dependent t…

Magnetoconductance Anisotropies and Aharonov-Casher Phases Open

R. I. Shekhter, O. Entin‐Wohlman, M. Jonson, Amnon Aharony · 2022

The spin-orbit interaction (SOI) is a key tool for manipulating and functionalizing spin-dependent electron transport. The desired function often depends on the SOI-generated phase that is accumulated by the wave function of an electron as…

Nanomechanical cat states generated by a dc voltage-driven Cooper pair box qubit Open

D. Radić, Sang‐Jun Choi, Hee Chul Park, Junho Suh, R. I. Shekhter , et al. · 2022

We study a nanoelectromechanical system consisting of a Cooper pair box qubit performing nanomechanical vibrations between two bulk superconductors. We demonstrate that a bias voltage applied to the superconductors may generate states repr…

Cooling of nanomechanical vibrations by Andreev injection Open

O. M. Bahrova, S. I. Kulinich, L. Y. Gorelik, R. I. Shekhter, H. C. Park · 2022

A nanoelectromechanical weak link composed of a carbon nanotube suspended between two normal electrodes in a gap between two superconducting leads is considered. The nanotube is treated as a movable single level quantum dot in which the po…

Nanomechanics driven by the superconducting proximity effect Open

O. M. Bahrova, S. I. Kulinich, L. Y. Gorelik, R. I. Shekhter, Hee Chul Park · 2022

We consider a nanoelectromechanical weak link composed of a carbon nanotube suspended above a trench in a normal metal electrode and positioned in a gap between two superconducting leads. The nanotube is treated as a movable single-level q…

Magnetoconductance Anisotropies and Aharonov-Casher Phases Open

R. I. Shekhter, O. Entin‐Wohlman, M. Jonson, Amnon Aharony · 2022

The spin-orbit interaction is a key tool for manipulating and functionalizing spin-dependent electron transport. However, the precise value of the spin-orbit coupling constant is hard to determine and control. Here we propose a measurement…

Nanomechanics driven by Andreev tunneling Open

A. V. Parafilo, L. Y. Gorelik, M. V. Fistul, Hee Chul Park, R. I. Shekhter · 2020

We predict and analyze mechanical instability and corresponding self-sustained mechanical oscillations occurring in a nanoelectromechanical system composed of a metallic carbon nanotube (CNT) suspended between two superconducting leads and…

Effects of magnetic fields on the Datta-Das spin field-effect transistor Open

Kingshuk Sarkar, Amnon Aharony, O. Entin‐Wohlman, M. Jonson, R. I. Shekhter · 2020

A Datta-Das spin field-effect transistor is built of a heterostructure with a Rashba spin-orbit interaction (SOI) at the interface (or quantum well) separating two possibly magnetized reservoirs. The particle and spin currents between the …

Magnetization generated by microwave-induced Rashba interaction Open

O. Entin‐Wohlman, R. I. Shekhter, M. Jonson, Amnon Aharony · 2020

We show that a controllable dc magnetization is accumulated in a junction\ncomprising a quantum dot coupled to non-magnetic reservoirs if the junction is\nsubjected to a time-dependent spin-orbit interaction. The latter is induced by\nan a…

Datta-Das spin field-effect transistor under various magnetic fields Open

Kingshuk Sarkar, Amnon Aharony, O. Entin‐Wohlman, M. Jonson, R. I. Shekhter · 2020

A Datta-Das spin field-effect transistor is built of a heterostructure with a Rashba spin-orbit interaction (SOI) at the interface (or quantum well) separating two possibly magnetized reservoirs. The particle and spin currents between the …

Spin-polaronic effects in electric shuttling in a single molecule transistor with magnetic leads Open

O. A. Ilinskaya, D. Radić, Hee Chul Park, I. V. Krive, R. I. Shekhter , et al. · 2020

Photovoltaic effect generated by spin-orbit interactions Open

O. Entin‐Wohlman, R. I. Shekhter, M. Jonson, Amnon Aharony · 2020

An AC electric field applied to a junction comprising two spin-orbit coupled\nweak links connecting a quantum dot to two electronic terminals is proposed to\ninduce a DC current and to generate a voltage drop over the junction if it is a\n…

Kondo effect in a Aharonov-Casher interferometer Open

A. V. Parafilo, L. Y. Gorelik, M. N. Kiselev, Hee Chul Park, R. I. Shekhter · 2019

We consider a model describing a spin field-effect transistor based on a quantum nanowire with a tunable spin-orbit interaction embedded between two ferromagnetic leads with anticollinear magnetization. We investigate a regime of a strong …

DC spin generation by junctions with AC driven spin-orbit interaction Open

M. Jonson, R. I. Shekhter, O. Entin-Wohlman, Amnon Aharony, Hee Chul Park , et al. · 2019

An unbiased one-dimensional weak link between two terminals, subjected to the Rashba spin-orbit interaction caused by an AC electric field which rotates periodically in the plane perpendicular to the link, is shown to inject spin-polarized…

Effects of Different Lead Magnetizations on the Datta–Das Spin Field-Effect Transistor Open

Amnon Aharony, O. Entin‐Wohlman, Kingshuk Sarkar, R. I. Shekhter, M. Jonson · 2019

A Datta-Das spin field effect transistor is built of a one-dimensional weak link, with Rashba spin orbit interactions (SOI), which connects two magnetized reservoirs. The particle and spin currents between the two reservoirs are calculated…

Electric and magnetic gating of Rashba-active weak links Open

Amnon Aharony, O. Entin‐Wohlman, M. Jonson, R. I. Shekhter · 2018

In a one-dimensional weak-link wire the spin-orbit interaction (SOI) alone cannot generate a nonzero spin current. We show that a Zeeman field acting in the wire in conjunction with the Rashba SOI there does yield such a current, whose mag…

Mechanically induced thermal breakdown in magnetic shuttle structures Open

O. A. Ilinskaya, S. I. Kulinich, I. V. Krive, R. I. Shekhter, Hee Chul Park , et al. · 2018

A theory of a thermally induced single-electron "shuttling" instability in a\nmagnetic nanomechanical device subject to an external magnetic field is\npresented in the Coulomb blockade regime of electron transport. The model\nmagnetic shut…

Spin precession in spin-orbit coupled weak links: Coulomb repulsion and Pauli quenching Open

R. I. Shekhter, O. Entin‐Wohlman, M. Jonson, Amnon Aharony · 2017

A simple model for the transmission of pairs of electrons through a weak electric link in the form of a nanowire made of a material with strong electron spin-orbit interaction (SOI) is presented, with emphasis on the effects of Coulomb int…

Spin-mediated Photomechanical Coupling of a Nanoelectromechanical Shuttle Open

A. V. Parafilo, S. I. Kulinich, L. Y. Gorelik, M. N. Kiselev, R. I. Shekhter , et al. · 2016

We show that nanomechanical vibrations in a magnetic shuttle device can be strongly affected by external microwave irradiation through photo-assisted electronic spin-flip transitions. Mechanical consequences of these spin flips are due to …

Rashba Splitting of Cooper Pairs Open

R. I. Shekhter, O. Entin‐Wohlman, M. Jonson, Amnon Aharony · 2016

We investigate theoretically the properties of a weak link between two superconducting leads, which has the form of a nonsuperconducting nanowire with a strong Rashba spin-orbit coupling caused by an electric field. In the Coulomb-blockade…

Low-energy anomalies in electron tunneling through strongly asymmetric Majorana nanowire Open

A. D. Shkop, A. V. Parafilo, I. V. Krive, R. I. Shekhter · 2016

Electron transport through Majorana nanowire with strongly asymmetric couplings to normal metal leads is considered. In three terminal geometry (electrically grounded nanowire) it is shown that the presence of unbiased electrode restores z…

Spin Gating of Mesoscopic Devices Open

R. I. Shekhter, M. Jonson · 2015

Inefficient screening of electric fields in nanoconductors makes electric manipulation of electronic transport in nanodevices possible. Accordingly, electrostatic (charge) gating is routinely used to affect and control the Coulomb electros…

Shuttling of Spin Polarized Electrons in Molecular Transistors Open

O. A. Ilinskaya, S. I. Kulinich, I. V. Krive, R. I. Shekhter, Y. W. Park , et al. · 2015

Shuttling of electrons in single-molecule transistors with magnetic leads in the presence of an external magnetic field is considered theoretically. For a current of partially spin-polarized electrons a shuttle instability is predicted to …

Tunable spin-polaron state in a singly clamped semiconducting carbon nanotube Open

F. Pistolesi, R. I. Shekhter · 2015

We consider a semiconducting carbon nanotube (CNT) laying on a ferromagnetic insulating sub-strate with one end depassing the substrate and suspended over a metallic gate. We assume that the polarised substrate induces an exchange interact…

R. I. Shekhter YOU? Author Swipe