Coupled frustrated ferromagnetic and antiferromagnetic quantum spin chains in the quasi-one-dimensional mineral antlerite, Cu${}_3$SO${}_4$(OH)${}_4$

Abstract

Magnetic frustration, the competition among exchange interactions, often leads to novel magnetic ground states with unique physical properties which can hinge on details of interactions that are otherwise difficult to observe. Such states are particularly interesting when it is possible to tune the balance among the interactions to access multiple types of magnetic order. We present antlerite, Cu${}_3$SO${}_4$(OH)${}_4$, as a potential platform for tuning frustration. Contrary to previous reports, the low-temperature magnetic state of its three-leg zigzag ladders is a quasi-one-dimensional analog of the magnetic state recently proposed to exhibit spinon-magnon mixing in botallackite. Density functional theory calculations indicate that antlerite's magnetic ground state is exquisitely sensitive to fine details of the atomic positions, with each chain independently on the cusp of a phase transition, indicating an excellent potential for tunability.

arXiv commentMain text: 7 pages, 4 figures. Supplementary at end: 7+$\epsilon$ pages, 10 figures. CIF files included as ancillary files. Added more details on inelastic neutron scattering and DMRG calculations

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Cited by in corpus (7)

• Incommensurate and multiple-$\mathbf{q}$ magnetic misfit order in the frustrated quantum-spin-ladder material antlerite, Cu${}_3$SO${}_4$(OH)${}_4$
• Magnetic Phase Diagram of Rouaite, Cu${}_2$(OH)${}_3$NO${}_3$
• Self-organised magnon condensation in quasi-1D edge-shared cuprates without external fields
• Pressure-tuned spin chains in brochantite, Cu${}_4$SO${}_4$(OH)${}_6$
• Stacking disorder in novel ABAC-stacked brochantite, Cu${}_4$SO${}_4$(OH)${}_6$
• NMR Determination of the Low-Field Magnetic Structure of the Cu-Based Mineral Rouaite Cu${}_2$(OH)${}_3$NO${}_3$
• High-field magnetic properties of the alternating ferro-antiferromagnetic spin-chain compound Cu${}_2$(OH)${}_3$Br