The t-J model on a semi-infinite lattice

Details The t-J model on a semi-infinite lattice The t-J model on a semi-infinite lattice

2010-06-07

arxiv.org/abs/1006.1215v1

J. Phys.: Condens. Matter 22 (2010) 375603

Physics

Condensed Matter

Strongly Correlated Electrons

8 pages, 5 figures

Scientific paper

10.1088/0953-8984/22/37/375603

The hole spectral function of the t-J model on a two-dimensional semi-infinite lattice is calculated using the spin-wave and noncrossing approximations. In the case of small hole concentration and strong correlations, $t\gg J$, several near-boundary site rows appear to be depleted of holes. The reason for this depletion is a deformation of the magnon cloud, which surrounds the hole, near the boundary. The hole depletion in the boundary region leads to a more complicated spectral function in the boundary row in comparison with its bulk shape.

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