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7 papers · 2 filters
Realistic Electron-Electron Interaction in a Quantum Wire
K. Byczuk, T. Dietl
The form of an effective electron-electron interaction in a quantum wire with a large static dielectric constant is determined and the resulting properties of the electron liquid i…
Pinning of slidding collective charge state in a 1D attractive fermion system
Shu Chen, Yupeng Wang, Fan Yang +1
We investigate an interacting fermion model with boundary potential by using Bethe ansatz method. The ground state properties of the system and the boundary effect are discussed. I…
Two Magnetic Impurities in a Spin Chain
Zhan-Ning Hu, Fu-Cho Pu
In this letter, the Kondo magnetic effect is studied for the spin chain where the impurities are coupled to the edges of the system. The Hamiltonian of our model can be const…
Heisenberg XYZ Hamiltonian with Integrable Impurities
Zhan-Ning Hu
In this letter, we construct a Hamiltonian of the impurity model within the framework of the open boundary Heisenberg XYZ spin chain. This impurity model is an exactly solved one a…
Effect of Level Statistics on Local Magnetism in Nanoscale Metallic Grains
Liang-Jian Zou
Effect of level statistics on local electronic states and local magnetism in nanoscale metallic grains with transition-metal impurity in the ballistic regime is studied. It is show…
Composite Polarons in Ferromagnetic Narrow-band Metallic Manganese Oxides
Liang-Jian Zou, H. Q. Lin, Qing-Qi Zheng
A new mechanism is proposed to explain the colossal magnetoresistance and related phenomena. Moving electrons accompanied by Jahn-Teller phonon and spin-wave clouds may form compos…