On calculation of RKKY range function in one dimension
arXiv:1701.06198 · doi:10.1016/j.jmmm.2017.06.007
Abstract
The effect of strong singularity in the calculation of range function for the RKKY interaction in 1D electron gas is discussed. The method of handling this singularity is presented. A possible way of avoiding the singularity in the Ruderman-Kittel perturbation theory in 1D is described.
6 pages, 5 figures, some text added, accepted to: Journal of Magnetism and Magnetic Materials
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