Edge States in Doped Antiferromagnetic Nano-Structures
arXiv:cond-mat/0401616 · doi:10.1103/PhysRevLett.94.036407
Abstract
We study competition between different phases in a strongly correlated nano-structure with an edge. Making use of the self-consistent Green's function and density matrix renormalization group methods, we study a system described by the t-Jz and t-J models on a strip of a square lattice with a linear hole density n_||. At intermediate interaction strength J/t we find edge stripe-like states, reminiscent of the bulk stripes that occur at smaller J/t. We find that stripes attach to edges more readily than hole pairs, and that the edge stripes can exhibit a peculiar phase separation.
arXiv comment4+ pages, 3 Figures, published version
References in corpus (7)
- One-Dimensional Fermi liquids
- Energetics of Domain Walls in the 2D t-J model
- Competition Between Stripes and Pairing in a t-t'-J Model
- Hole and Pair Structures in the t-J model
- Phase separation and stripe formation in the 2D t-J model: a comparison of numerical results
- Holes in the t-J_z model: a thorough study
- Stripe as an effective one-dimensional band of composite excitations