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Frustrated Honeycomb Heisenberg Antiferromagnet: A Schwinger Boson Approach

Ann Mattsson·Per Fröjdh·Torbjörn Einarsson
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Abstract

We analyze the frustrated Heisenberg antiferromagnet defined on a honeycomb lattice using a Schwinger-boson mean-field theory. The spin-wave velocity and the susceptibility are presented as functions of the strength of the frustrating interaction for spin S=1/2, and the dynamic structure factor is calculated for various temperatures and frustrations. For large S, we find an increased Neel stability with respect to the classical case.

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Ann Mattsson, Per Fröjdh, Torbjörn Einarsson. 1993-10-27. Frustrated Honeycomb Heisenberg Antiferromagnet: A Schwinger Boson Approach. https://doi.org/10.1103/physrevb.49.3997

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