Thermodynamics of the hyperkagome-lattice $S=1/2$ Heisenberg ferromagnet

Abstract

The hyperkagome-lattice $S=1/2$ Heisenberg ferromagnet is studied by means of the linear spin-wave theory, the double-time temperature Green's function method, high-temperature expansions series analysis, and quantum Monte Carlo simulations to examine the effect of lattice geometry on the finite-temperature properties. In particular, we have found that the Curie temperature $T_c$ for the hyperkagome-lattice (frustrated lattice) ferromagnet is about $0.33|J|$ that is smaller than $T_c$ for the diamond-lattice (another three-dimensional lattice with the same coordination number 4 but bipartite one) ferromagnet by about $25\%$.

arXiv comment9 pages, 6 figures

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Cited by in corpus (1)

• Three-dimensional unfrustrated and frustrated quantum Heisenberg magnets. Specific heat study