BaCo$_2$(AsO$_4$)$_2$: Strong Kitaev, After All

Pavel A. Maksimov; Shengtao Jiang; L. P. Regnault; A. L. Chernyshev

doi:10.1103/k1gq-k8m7

paper

BaCo $_{2}$ (AsO $_{4}$ ) $_{2}$ : Strong Kitaev, After All

arXiv:2503.20859 · doi:10.1103/k1gq-k8m7

Abstract

The inelastic neutron scattering results and their analysis unequivocally point to a dominant Kitaev interaction in the honeycomb-lattice cobaltate BaCo $_{2}$ (AsO $_{4}$ ) $_{2}$ . Our anisotropic-exchange model closely describes $a l l$ available neutron scattering data in the material's field-polarized phase. The density-matrix renormalization group results for our model are in close accord with the unusual double-zigzag magnetic order and the low in-plane saturation field of BaCo $_{2}$ (AsO $_{4}$ ) $_{2}$ .

9+7.25 pages, 7+11 figures. 50-year-old mystery. Solved. Text of immense persuasive power. Published under different title. Winner of the PRL beauty award (Editor's Suggestion)

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BaCo2​(AsO4​)2​: Strong Kitaev, After All

Abstract

References in corpus (56)

Cited by in corpus (7)

BaCo $_{2}$ (AsO $_{4}$ ) $_{2}$ : Strong Kitaev, After All