Incommensurate and multiple-q magnetic misfit order in the frustrated quantum spin ladder material antlerite Cu3SO4(OH)(4)

Article

关键词: LAYER COMPOUNDS;    COPPER;    MUON;    RELAXATION;    DYNAMICS;    CHAIN;   

DOI  :  10.1103/PhysRevB.106.174431

来源: SCIE

【 摘 要 】

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, Cu3SO4(OH)(4), Cu2+ (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.

【 授权许可】

Free