Phys. Rev. B 49, 3997–4002 (1994)Frustrated honeycomb Heisenberg antiferromagnet: A Schwinger-boson approachReceived 16 September 1993; published in the issue dated 1 February 1994 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 Ne´el stability with respect to the classical case. © 1994 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.49.3997
DOI:
10.1103/PhysRevB.49.3997
PACS:
75.10.Jm, 75.50.Ee, 75.30.Ds
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