Spin-dependent shot noise enhancement in a quantum dot

2013/07/15 by Niels Ubbelohde, C. Fricke, Christian Fricke +4 · 20 citations
Engineering · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Atomic orbital #Condensed matter physics #Coulomb blockade #Coupling (piping) #Electron #Image (mathematics) #Landau quantization #Materials science #Noise (video) #Optics #Physics #Quantum and electron transport phenomena #Quantum dot #Quantum dot laser #Quantum mechanics #Quantum well #Semiconductor Quantum Structures and Devices #Shot noise #Spin (aerodynamics) #cond-mat.mes-hall

paper · pdf · doi:10.1103/physrevb.88.041304

published in Physical Review B 88(4) (American Physical Society)

openalex publication_date 2013/07/15 · arxiv created 2013/07/30 · arxiv updated 2013/08/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/08

Abstract

The spin-dependent dynamical blockade was investigated in a lateral quantum dot in a magnetic field. Spin-polarized edge channels in the two-dimensional leads and the spatial distribution of Landau orbitals in the dot modulate the tunnel coupling of the quantum dot level spectrum. In a measurement of the electron shot noise we observe a pattern of super-Poissonian noise which is correlated to the spin-dependent competition between different transport channels.

Citations

• Positive cross-correlations due to dynamical channel blockade in a three-terminal quantum dot
• Electron Bunching in Transport through Quantum Dots in a High Magnetic Field
• Multiple Transitions of the Spin Configuration in Quantum Dots
• Addition spectrum of a lateral dot from Coulomb and spin-blockade spectroscopy
• Noninvasive detection of charge rearrangement in a quantum dot in high magnetic fields
• Noise of a quantum dot system in the cotunneling regime
• Spin-Blockade Spectroscopy of a Two-Level Artificial Molecule