Frustrated Honeycomb Heisenberg Antiferromagnet: A Schwinger Boson Approach

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.

14 pages, RevTeX 3.0. Göteborg ITP 93-36. Seven figures (not included) can be ordered from Ann Mattsson ([email protected])

References in corpus (1)

• Spin liquid phase for the frustrated Quantum Heisenberg Antiferromagnet on a square lattice

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