2008/10/06 by Stephen Sarkozy, S. Sarkozy, F. Sfigakis +5 · 47 citations
Physics and Astronomy · #Anomaly (physics) #Condensed matter physics #Heterojunction #Impurity #Kondo effect #Magnetic field #Magnetic properties of thin films #Materials science #Physics #Physics of Superconductivity and Magnetism #Quantum #Quantum and electron transport phenomena #Quantum dot #Quantum mechanics #Spin (aerodynamics) #Zeeman effect #Zero (linguistics) #cond-mat.mes-hall #cond-mat.str-el
paper · pdf · doi:10.1103/physrevb.79.161307
published in Physical Review B 79(16) (American Physical Society)
arxiv created 2008/10/06 · openalex publication_date 2009/04/27 · arxiv updated 2014/03/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We use quantum wires fabricated on undoped GaAs/AlGaAs heterostructures in which the average impurity separation is greater than the device size to compare the behavior of the zero-bias anomaly against predictions from Kondo and spin-polarization models. Both theories display shortcomings, the most dramatic of which is the linear electron-density dependence of the zero-bias anomaly spin splitting at fixed magnetic field B and the suppression of the Zeeman effect at pinch off.