期刊
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
卷 320, 期 14, 页码 E418-E420出版社
ELSEVIER
DOI: 10.1016/j.jmmm.2008.02.077
关键词
Friedel oscillation; Hubbard model; density functional theory
Charge density and magnetization density profiles of one-dimensional metals are investigated by two complementary many-body methods: numerically exact (Lanczos) diagonalization, and the Bethe-Ansatz local-density approximation with and without a simple self-interaction correction. Depending on the magnetization of the system, local approximations reproduce different Fourier components of the exact Friedel oscillations. (C) 2008 Elsevier B.V. All rights reserved.
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