Evidence of a spin liquid phase in the frustrated honeycomb lattice

Abstract

In the present paper we present some new data supporting the existence of a spin-disordered phase in the Heisenberg model on the honeycomb lattice with antiferromagnetic interactions up to third neighbors along the line J2=J3, predicted in [Phys. Rev. B 83, 094506 (2011)]. We use the Schwinger boson technique followed by a mean field decoupling and exact diagonalization for small systems to show the existence of an intermediate phase with a spin gap and short range Néel correlations in the strong quantum limit (S=1/2).

6 pages, to be published in Modern Physics Letters B

References in corpus (6)

• Quantum spin-liquid emerging in two-dimensional correlated Dirac fermions
• beta-Cu2V2O7: a spin-1/2 honeycomb lattice system
• Disordered Ground State and Magnetic Field-Induced Long-Range Order in an S=3/2 Antiferromagnetic Honeycomb Lattice Compound Bi3Mn4O12(NO3)
• Symplectic N and time reversal in frustrated magnetism
• Destruction of Neel order in the cuprates by electron-doping
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Cited by in corpus (3)

• Weak plaquette valence bond order in the $S=1/2$ honeycomb $J_1-J_2$ Heisenberg model
• Quantum phases of the frustrated XY models on the honeycomb lattice
• Self consistent study of the quantum phases in a frustrated antiferromagnet on the bilayer honeycomb lattice