2000/11/01 by J. G. S. Lok, S. Kraus, M. Pohlt +4
Chemistry · Physics and Astronomy · #Antiparallel (mathematics) #Atomic physics #Chemistry #Condensed matter physics #Drag #Electron #Fermi Gamma-ray Space Telescope #Fermi energy #Fermi level #Magnetic field #Magnetic properties of thin films #Maxima and minima #Oscillation (cell signaling) #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Spin (aerodynamics) #Spins #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.63.041305
published as Phys. Rev. B 63, 041305(R) · 4 pages, 3 figures
arxiv created 2000/11/01 · openalex publication_date 2001/01/09 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We report on the selectivity to spin in a drag measurement. This selectivity to spin causes deep minima in the magnetodrag at odd filling factors for matched electron densities at magnetic fields and temperatures at which the bare spin energy is only one tenth of the temperature. For mismatched densities the selectivity causes a 1/B periodic oscillation, such that negative minima in the drag are observed whenever the majority spins at the Fermi energies of the two-dimensional electron gases are antiparallel, and positive maxima whenever the majority spins at the Fermi energies are parallel.