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Effective Mass of Bound and Resonant Two-Electron Pairs in a Simple Cubic Lattice
2015
Acta Physica Polonica. A
Preserved Fulltext
Eective masses m * of bound 2-electron pairs on a simple cubic lattice were investigated within tUWJ model within symmetry channels. Linear increase of m * with |W | for intersite pairs and nonlinear behavior and sign change of m * in case of pairs with on-site component were found. |m * | turned out to be larger than twice free electron mass.
doi:10.12693/aphyspola.127.290
fatcat:uom6b6cx4jeshcjkzf34dabcie