The sublattice magnetizations of the spin-s quantum Heisenberg antiferromagnets
Abstract
We study the spin-s quantum Heisenberg antiferromagnetic models in a magnon theory free of any unphysical magnon state. Because the unphysical magnon states are completely removed in the magnon Hamiltonians and during the approximation process, we derive spin-s (s>1/2) reliable Neel temperature TN and reasonable sublattice magnetization unified for T≤ TN.
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