Incommensurate and multiple-$\boldsymbol{q}$ magnetic misfit order in the frustrated quantum-spin-ladder material antlerite, Cu$_3$SO$_4$(OH)$_4

Phys. Rev. B 106, 174431 (2022) In frustrated magnetic systems, the competition amongst interactions can introduce extremely high degeneracy and prevent the system from readily selecting a unique ground state. In such cases, the magnetic order is often exquisitely sensitive to the balance among the...

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Hauptverfasser: Kulbakov, Anton A, Sadrollahi, Elaheh, Rasch, Florian, Avdeev, Maxim, Gaß, Sebastian, Bohorquez, Laura Teresa Corredor, Wolter, Anja U. B, Feig, Manuel, Gumeniuk, Roman, Poddig, Hagen, Stötzer, Markus, Litterst, F. Jochen, Puente-Orench, Inés, Wildes, Andrew, Weschke, Eugen, Geck, Jochen, Inosov, Dmytro S, Peets, Darren C
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Sprache:eng
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Zusammenfassung:Phys. Rev. B 106, 174431 (2022) In frustrated magnetic systems, the competition amongst interactions can introduce extremely high degeneracy and prevent the system from readily selecting a unique ground state. In such cases, the magnetic order is often exquisitely sensitive to the balance among the interactions, allowing tuning among novel magnetically ordered phases. In antlerite, Cu$_3$SO$_4$(OH)$_4$, Cu$^{2+}$ ($S=1/2$) quantum spins populate three-leg zigzag ladders in a highly frustrated quasi-one-dimensional structural motif. We demonstrate that at zero applied field, in addition to its recently reported low-temperature phase of coupled ferromagnetic and antiferromagnetic spin chains, this mineral hosts an incommensurate helical+cycloidal state, an idle-spin state, and a multiple-$q$ phase which is the magnetic analog of misfit crystal structures. The antiferromagnetic order on the central leg is reentrant. The high tunability of the magnetism in antlerite makes it a particularly promising platform for pursuing exotic magnetic order.
DOI:10.48550/arxiv.2207.05606