Frustrated honeycomb Heisenberg antiferromagnet: A Schwinger-boson approach.

نویسندگان

  • Mattsson
  • Fröjdh
  • Einarsson
چکیده

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 = 12 , and the dynamic structure factor is calculated for various temperatures and frustrations. For large S, we find an increased Néel stability with respect to the classical case.

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عنوان ژورنال:
  • Physical review. B, Condensed matter

دوره 49 6  شماره 

صفحات  -

تاریخ انتشار 1994