2011/09/30 by B. J. Witek, R. W. Heeres, U. Perinetti +5 · 1 citation
Chemistry · Engineering · Mathematics · Physics and Astronomy · #Advancements in Semiconductor Devices and Circuit Design #Chemistry #Condensed matter physics #Electron #Exciton #Geometry #Magnetic field #Mathematics #Nanowire #Physical chemistry #Physics #Polarization (electrochemistry) #Quantum #Quantum and electron transport phenomena #Quantum computer #Quantum dot #Quantum mechanics #Qubit #Semiconductor Quantum Structures and Devices #Spin (aerodynamics) #Spins #Tensor (intrinsic definition) #Zeeman effect #cond-mat.mtrl-sci
paper · pdf · doi:10.1103/physrevb.84.195305
published as Phys. Rev. B 84, 195305 (2011)
openalex publication_date 2011/11/04 · arxiv created 2011/12/04 · arxiv updated 2011/12/06 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
We perform polarization-resolved magneto-optical measurements on single InAsP quantum dots embedded in an InP nanowire. In order to determine all elements of the electron and hole g-factor tensors, we measure in magnetic fields with different orientations. The results of these measurements are in good agreement with a model based on exchange terms and Zeeman interaction. In our experiment, polarization analysis delivers a powerful tool that not only significantly increases the precision of the measurements, but also enables us to probe the exciton spin-state evolution in magnetic fields. We propose a disentangling scheme of heavy-hole exciton spins enabling a measurement of the electron spin T2-time.