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Orbital and spin chains in ZnV2O4

S. -H. Lee·D. Louca·H. Ueda·S. Park·T. J. Sato·M. Isobe·Y. Ueda·S. Rosenkranz·P. Zschack·J. Iniguez·R. Osborn
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Abstract

Our powder inelastic neutron scattering data indicate that \zvo is a system of spin chains that are three dimensionally tangled in the cubic phase above 50 K due to randomly occupied $t_{2g}$ orbitals of V$^{3+}$ ($3d^2$) ions. Below 50 K in the tetragonal phase, the chains become straight due to antiferro-orbital ordering. This is evidenced by the characteristic wave vector dependence of the magnetic structure factor that changes from symmetric to asymmetric at the cubic-to-tetragonal transition.

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S. -H. Lee, D. Louca, H. Ueda, S. Park, T. J. Sato, M. Isobe, Y. Ueda, S. Rosenkranz, P. Zschack, J. Iniguez, R. Osborn. 2004-10-08. Orbital and spin chains in ZnV2O4. https://doi.org/10.1103/physrevlett.93.156407

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