Virginia TechWeng, Z. Y.Ting, C. S.Lee, T. K.2014-05-072014-05-071990-02Weng, Z. Y.; Ting, C. S.; Lee, T. K., "Mobile spin bags and their interaction in the spin-density-wave background," Phys. Rev. B 41, 1990 DOI: http://dx.doi.org/10.1103/PhysRevB.41.19901098-0121http://hdl.handle.net/10919/47862The motion of one doped hole in the spin-density-wave background has been studied by the variational approach. A spin-bag solution for the doped hole has been obtained that applies in the weak- and intermediate-coupling regime. The effective attraction between two spin bags with antiparallel spins has been shown to be p- and d-wave like. The low-lying spin-flip excitations are found to be important both in the spin-bag effect of the doped holes and the effective attraction between them, which, in the latter case, are combined with the exchange of the simple-amplitude fluctuations to give a dominant contribution. On the other hand, the total attractive interaction is reduced by the Coulomb repulsion, which is restored in the presence of the "bag" effect.en-USIn Copyrightphysics, condensed matterArticle - Refereedhttp://journals.aps.org/prb/abstract/10.1103/PhysRevB.41.1990https://doi.org/10.1103/PhysRevB.41.1990