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[en] The frustrated quantum spin system on the distorted diamond chain lattice suitable for the alumoklyuchevskite is investigated using the numerical diagonalization of finite-size clusters and the level spectroscopy analysis. It is found that this model exhibits three quantum phases; the ferrimagnetic phase, the spin gap one, and the gapless Tomonaga-Luttinger liquid depending on the exchange coupling parameters. The ground state phase diagram is presented. (author)
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Hotta, Takashi (ed.) (Tokyo Metropolitan University, Hachioji, Tokyo (Japan)); Katsufuji, Takuro (ed.) (Waseda University, Tokyo (Japan)); [1157 p.]; ISBN 978-4-89027-142-9; 
; 2020; p. 011084.1-011084.5; SCES2019: International conference on strongly correlated electron systems; Okayama (Japan); 23-28 Sep 2019; Available from DOI: https://doi.org/10.7566/JPSCP.30.011084; 9 refs., 4 figs.
; 2020; p. 011084.1-011084.5; SCES2019: International conference on strongly correlated electron systems; Okayama (Japan); 23-28 Sep 2019; Available from DOI: https://doi.org/10.7566/JPSCP.30.011084; 9 refs., 4 figs.