Low Temperature Properties of the Double Layer Quantum Heisenberg Antiferromagnet -Modified Spin Wave Method-

1990/06/15 by Kazuo Hida · 3 citations
Physics and Astronomy · #Physics of Superconductivity and Magnetism #Magnetic properties of thin films #Theoretical and Computational Physics

paper · doi:10.1143/jpsj.59.2230

Abstract

The low temperature properties of the double layer quantum Heisenberg antiferromgnet are studied by the modified spin wave method proposed by Takahashi. As expected from the lowest order spin wave analysis, the spin fluctuation decreases with the increase of the interlayer coupling J K for small J K , while it turns to increase for large J K for the antiferromagnetic J K . The long range order is destroyed for large enough J K . The disordered phase is the singlet gas phase. The low temperature behaviors of the spin-spin correlation length are also calculated and characters of the low temperature phase are discussed.

Citations

• General Theory of Spin-Wave Interactions

Cited by

• Quantum decay of magnons in the unfrustrated honeycomb Heisenberg model
• Quantum effects in the magnon spectrum of 2D altermagnets via continuous similarity transformations
• Quantum impurity dynamics in two-dimensional antiferromagnets and superconductors

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