Magnetodielectric coupling in Ca3Co2O6 triangular Ising lattice

Natalia Bellido (1) , Charles Simon (1) , Antoine Maignan (1)

1 CRISMAT - Laboratoire de cristallographie et sciences des matériaux

Geometric frustration in magnetic systems is a key ingredient for magnetodielectric coupling. Ca3Co2O6 system is a model of triangular Ising lattice and presenting exotic magnetic properties. With a partially disordered antiferromagnetic ground state and two steps in magnetisation to a ferrimagnetic state and to a ferromagnetic state, this oxide is a good system for studying the effect of frustration in magnetodielectric coupling. Dielectric constant measurements of single crystals of Ca3Co2O6 have been done showing the sensitivity of this technique to frustration.

Domaines: Chimie; Matériaux

Natalia Bellido, Charles Simon, Antoine Maignan. Magnetodielectric coupling in Ca3Co2O6 triangular Ising lattice. Journal of Magnetism and Magnetic Materials, 2009, 321 (11), pp.1770-1772. ⟨10.1016/j.jmmm.2009.02.033⟩. ⟨hal-02264231⟩