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Crystallographic and magnetic structure of ZnV $\mathsf{_2}$ O $\mathsf{_4}$

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  • M. Reehuis
  • A. Krimmel
  • N. Büttgen
  • A. Loidl
  • A. Prokofiev

Abstract

We report on the crystallographic and magnetic structure of the geometrically frustrated spinel ZnV 2 O 4 as determined by neutron powder diffraction. At T=51 K, a cubic-to-tetragonal phase transition takes place. The low temperature crystallographic structure is characterized by the space group I4 1 /amd and unit cell dimensions ${a/\sqrt{2} \times a/\sqrt{2} \times a}$ with a being the lattice constant of the cubic phase. The corresponding antiferromagnetic structure of the vanadium sublattice can be described by a propagation vector ${{\bf k}=(001)}$ with the magnetic moments being aligned parallel to the c-axis. The ordered magnetic moment is 0.65(5) ${\mu_B}$ per V 3+ ion. The experimental results are in accord with recent theoretical models proposing spin-driven Jahn-Teller distortions. The results are also compared with reports on non-ordering ZnV 2 O 4 . Copyright Springer-Verlag Berlin/Heidelberg 2003

Suggested Citation

  • M. Reehuis & A. Krimmel & N. Büttgen & A. Loidl & A. Prokofiev, 2003. "Crystallographic and magnetic structure of ZnV $\mathsf{_2}$ O $\mathsf{_4}$," The European Physical Journal B: Condensed Matter and Complex Systems, Springer;EDP Sciences, vol. 35(3), pages 311-316, October.
    • Handle: RePEc:spr:eurphb:v:35:y:2003:i:3:p:311-316
    DOI: 10.1140/epjb/e2003-00282-4
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