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cond-mat.str-el2020★ 27 cited
Fractional and composite excitations of antiferromagnetic quantum spin trimer chains
Jun-Qing Cheng, Jun Li, Zijian Xiong +3
Using quantum Monte Carlo, exact diagonalization and perturbation theory, we study the spectrum of the antiferromagnetic Heisenberg trimer chain by varying the ratio $g=J_2…
cond-mat.str-el2020★ 8 cited
Einstein-de Haas Effect of Topological Magnons
Jun Li, Trinanjan Datta, Dao-Xin Yao
We predict the existence of Einstein-de Haas effect in topological magnon insulators. Temperature variation of angular momentum in the topological state shows a sign change behavio…