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arXiv · 1401.3265

Evidence for SrHo2O4 and SrDy2O4 as model J1-J2 zig-zag chain materials

Amy Poole·Vladimir Pomjakushin·Anne-Christine Uldry·Bernhard Delley·Bobby Prevost·Alexandre Desilets-Benoit·Andrea D Bianchi·Robert I Bewley·Britt R Hansen·Thomasz Klimczuk·Robert J Cava·Michel Kenzelmann
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Abstract

Neutron diffraction and inelastic spectroscopy is used to characterize the magnetic Hamiltonian of SrHo2O4 and SrDy2O4. Through a detailed computation of the crystal-field levels we find site- dependent anisotropic single-ion magnetism in both materials and diffraction measurements show the presence of strong one-dimensional spin correlations. Our measurements indicate that competing interactions of the zig-zag chain, combined with frustrated interchain interactions, play a crucial role in stabilizing spin-liquid type correlations in this series.

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Amy Poole, Vladimir Pomjakushin, Anne-Christine Uldry, Bernhard Delley, Bobby Prevost, Alexandre Desilets-Benoit, Andrea D Bianchi, Robert I Bewley, Britt R Hansen, Thomasz Klimczuk, Robert J Cava, Michel Kenzelmann. 2014-01-14. Evidence for SrHo2O4 and SrDy2O4 as model J1-J2 zig-zag chain materials. https://doi.org/10.1103/physrevb.89.224511

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