2022
DOI: 10.48550/arxiv.2202.05242
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Spin Supersolidity in Nearly Ideal Easy-axis Triangular Quantum Antiferromagnet Na$_2$BaCo(PO$_4$)$_2$

Abstract: Prototypical models and their material incarnations are cornerstones to the understanding of quantum magnetism. Here we show theoretically that the recently synthesized magnetic compound Na2BaCo(PO4)2 (NBCP) is a rare, nearly ideal material realization of the S = 1/2 triangular lattice antiferromagnet with significant easyaxis spin exchange anisotropy. By combining the automatic parameter searching and tensor-network quantum many-body simulations, we establish a microscopic model description of this material w… Show more

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Cited by 2 publications
(3 citation statements)
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“…The increase in the gtensor anisotropy is accompanied by the enhancement of the XXZ anisotropy with the anisotropy parameter = J z /J xy = 2.04 K/0.96 K = 2.13 estimated from the Curie-Weiss temperatures. In comparison, we determined the anisotropy parameter of the Ba compound to be lower, = J z /J xy = 1.68 K/1.11 K = 1.51 [31], which is in good agreement with the calculated literature values [50].…”
Section: Discussion and Summarysupporting
confidence: 82%
See 1 more Smart Citation
“…The increase in the gtensor anisotropy is accompanied by the enhancement of the XXZ anisotropy with the anisotropy parameter = J z /J xy = 2.04 K/0.96 K = 2.13 estimated from the Curie-Weiss temperatures. In comparison, we determined the anisotropy parameter of the Ba compound to be lower, = J z /J xy = 1.68 K/1.11 K = 1.51 [31], which is in good agreement with the calculated literature values [50].…”
Section: Discussion and Summarysupporting
confidence: 82%
“…Indeed, Ref. [50] arrives at a similar conclusion for Na 2 BaCo(PO 4 ) 2 using extensive numerical simulations and comparisons to the experimental data also at temperatures well below J av .…”
Section: Magnetizationmentioning
confidence: 53%
“…Jav (K) TN/Jav Na2BaCo(PO4)2 [30] 0. enhancement of the XXZ anisotropy with the anisotropy parameter ∆ = J z /J xy = 2.04k B /0.96k B = 2.13 estimated from the Curie-Weiss temperatures. In comparison, we determined the lower anisotropy parameter of the Ba-compound to be ∆ = J z /J xy = 1.68k B /1.11k B = 1.51 [30], which is in good agreement with the calculated literature values [45].…”
Section: Tn (K)supporting
confidence: 78%