1999/09/29 by Vadim Ponomarenko, V.V. Ponomarenko, Naoto Nagaosa +1
Physics and Astronomy · #Anderson impurity model #Band gap #Conductance #Fermi energy #Fermi level #Impurity #Insulator (electricity) #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Spin (aerodynamics) #Topological Materials and Phenomena #cond-mat
paper · pdf · doi:10.1016/s0038-1098(99)00573-6
5 twocolumn pages in RevTex, no figures
arxiv created 1999/09/29 · openalex publication_date 2000/03/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
A low energy crossover (see cond-mat/9711167) induced by Fermi liquid reservoirs in transport through a 1D Mott-Hubbard insulator of finite length L is examined in the presence of impurity pinning. Under the assumption that the Hubbard gap 2M is large enough: M > TL ≡ vc/L (vc: charge velocity in the wire) and the impurity backscattering rate Γ1 ≪ TL, the conductance vs. voltage/temperature displays a zero-energy resonance. Transport through a spin gapped 1D system is also described availing of duality between the backscattered current of this system and the direct current of the Mott-Hubbard insulator.