Field dependence of the magnetic correlations of the frustrated magnet SrDy${}_2$O${}_4$

Abstract

The frustrated magnet SrDy${}_2$O${}_4$ exhibits a field-induced phase with a magnetization plateau at $1/3$ of the saturation value for magnetic fields applied along the $b$-axis. We report here a neutron scattering study of the nature and symmetry of the magnetic order in this field-induced phase. Below $T\approx 0.5$ K, there are strong hysteretic effects, and the order is short or long ranged for zero-field and field cooling, respectively. We find that the long-range ordered magnetic structure within the zig-zag chains is identical to that expected for the one-dimensional axial next-nearest neighbour Ising (ANNNI) model in longitudinal field. The long-range ordered structure in field contrasts with the short-range order found at zero field, and is probably reached through enhanced quantum fluctuations with increasing fields.

arXiv comment8 pages, 9 figures

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Cited by in corpus (7)

• Super-Necking Crystal Growth and Structural and Magnetic Properties of SrTb${}_2$O${}_4$ Single Crystals
• Fragile ground state and rigid field-induced structures in zigzag ladder compound BaDy2O4
• Coexistence of magnetic fluctuations and long-range orders in the one-dimensional $J_1-J_2$ zigzag chains materials BaDy${}_2$O${}_4$ and BaHo${}_2$O${}_4$
• Magnetic structure and low temperature properties of geometrically frustrated SrNd${}_2$O${}_4$
• Crystal field effects in the zig-zag chain compound SrTm${}_2$O${}_4$
• Magnetic properties of the zigzag ladder compound SrTb2O4
• Frustration and ordering in Ising chain in an external magnetic field with third-neighbor interactions