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Edge States in Doped Antiferromagnetic Nano-Structures

A. L. Chernyshev·A. H. Castro Neto·S. R. White
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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.

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A. L. Chernyshev, A. H. Castro Neto, S. R. White. 2005-01-27. Edge States in Doped Antiferromagnetic Nano-Structures. https://doi.org/10.1103/physrevlett.94.036407

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