Detection of spin polarization with a side-coupled quantum dot

2009/02/28 by Tomohiro Otsuka, Eisuke Abe, Yasuhiro Iye +1 · 4 citations
Engineering · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Quantum and electron transport phenomena #Semiconductor Quantum Structures and Devices #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.79.195313

published as Phys. Rev. B 79, 195313 (2009) · 5 pages, 6 figures

openalex publication_date 2009/05/14 · arxiv created 2009/06/01 · arxiv updated 2011/06/14 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We propose realistic methods to detect local spin polarization, which utilize a quantum dot side coupled to the target system. By choosing appropriate states in the dot, we can put spin selectivity to the dot and detect spins in the target with small disturbance. We also present an experiment which realizes one of the proposed spin-detection schemes in magnetic fields.

Citations

• Oscillatory effects and the magnetic susceptibility of carriers in inversion layers
• Spintronics: Fundamentals and applications
• Spin-Orbit Coupling Effects in Zinc Blende Structures
• Zeeman Energy and Spin Relaxation in a One-Electron Quantum Dot
• Single-shot read-out of an individual electron spin in a quantum dot

Cited by

• Probing local electronic states in the quantum Hall regime with a side-coupled quantum dot
• Filtering and analyzing mobile qubit information via Rashba–Dresselhaus–Aharonov–Bohm interferometers
• Majorana-like localized spin density without bound states in topologically trivial spin-orbit coupled nanowires
• Real-time dynamics of spin-dependent transport through a double-quantum-dot Aharonov-Bohm interferometer with spin-orbit interaction

Related

• Spin detection in quantum dots by electric currents
• Manipulating Single Spins in Quantum Dots Coupled to Ferromagnetic Leads
• Spontaneous spin polarized tunneling current through a quantum dot array
• Single-shot readout of electron spin states in a quantum dot using spin-dependent tunnel rates
• Measurement of theg-factor tensor in a quantum dot and disentanglement of exciton spins