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Solid State Communications

Influence of quantum phase transition on spin conductivity in the anisotropic three-dimensional ferromagnetic model

L.S. Lima

Published Nov 17, 2016• 10 citations
Publisher
DOI
10.1016/j.ssc.2016.11.014

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By using the density matrix renormalization group(DMRG) method,the author investigates the diagram of the one-dimensional frustrated anisotropic ferromagnetic S=1 Heisenberg spin model,in which the nearest neighboring interactions are anisotropic ferromagnetic and the next nearest neighboring exchanges are considerable anti-ferromagnetic.The ground state energy and both the in-plane and out-of-plane spin correlation functions are calculated.Apart from the ferromagnetic phase and the spin-fluid phase in the small frustration region,but in the large frustration region,it is identified that spin correlations decay with a short-range exponential law and an oscillating behavior.The result is different from the previous result for S=1/2.