Elsevier, Physica E: Low-dimensional Systems and Nanostructures, (59), p. 41-49, 2014
DOI: 10.1016/j.physe.2013.12.017
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In this paper we analyze the groundstate and finite-temperature properties of a frustrated Heisenberg $J_1-J_2$ model on a honeycomb lattice by employing the Schwinger boson technique. The phase diagram and spin gap as functions of ${J}_{2}/{J}_{1}$ are presented, showing that the exotic spin liquid phase lies in $0.21