Spin polarons in high Tc superconductors

Authors

  • Augusto A. Morales, Jr. ⋅ PH National Institute of Physics, University of the Philippines Diliman
  • Danilo M. Yanga ⋅ PH National Institute of Physics, University of the Philippines Diliman

Abstract

In a recent paper on spin polarons, the motion of a single hole in a two-dimensional Heisenberg antiferromagnet was analyzed based on the t-J model in the slave boson formulation. Holes were described as spinless bosons (holons) and spins were treated as normal fermions (spinons). Using the linear spin-wave theory, spin dynamics was discussed with the assumption of long-range antiferromagnetic order, thereby closely resembling the conventional polaron problem. Using finite-cluster geometries for the numerical solution, the holon Green's function was calculated self-consistently within the Born approximation. The result revealed that even in the strong-coupling regime, the formulation of the dynamics of a holon in the t-J model was quite valuable.

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Published

1997-10-27

How to Cite

[1]
AA Morales and DM Yanga, Spin polarons in high Tc superconductors, Proceedings of the Samahang Pisika ng Pilipinas 15, SPP-1997-TP-09 (1997). URL: https://proceedings.spp-online.org/article/view/SPP-1997-TP-09.