2020/06/30 by Patrick Del Vecchio, Mario Lodari, Amir Sammak +2
Physics and Astronomy · #Atomic and Subatomic Physics Research #Cold Atom Physics and Bose-Einstein Condensates #Energy (signal processing) #Magnetic field #Physics #Quantum mechanics #Strong Light-Matter Interactions #Zeeman effect #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.102.115304
published as Phys. Rev. B 102, 115304 (2020) · Corrected typos in expressions for F_l. Minor changes to sections layout
openalex publication_date 2020/09/17 · arxiv created 2020/10/19 · arxiv updated 2020/10/20 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A clear signature of Zeeman split states crossing is observed in a Landau fan diagram of strained germanium two-dimensional hole gas. The underlying mechanisms are discussed based on a perturbative model yielding a closed formula for the critical magnetic fields. These fields depend strongly on the energy difference between the topmost and neighboring valence bands and are sensitive to the quantum well thickness, strain, and spin-orbit interaction. The latter is a necessary feature for the crossing to occur. This framework enables a straightforward quantification of the hole-state parameters from simple measurements, thus paving the way for its use in design and modeling of hole-based quantum devices.