Magnetic and electric properties in the distorted tetrahedral spin chain system Cu3Mo2O9

Abstract

We study the multiferroic properties in the distorted tetrahedral quasi-one dimensional spin system Cu${}_3$Mo${}_2$O${}_9$, in which the effects of the low dimensionality and the magnetic frustration are expected to appear simultaneously. We clarify that the antiferromagnetic order is formed together with ferroelectric properties at $T_{\mathrm{N}}=7.9$ K under zero magnetic field and obtain the magnetic-field-temperature phase diagram by measuring dielectric constant and spontaneous electric polarization. It is found that the antiferromagnetic phase possesses a spontaneous electric polarization parallel to the c axis when the magnetic field $H$ is applied parallel to the a axis. On the other hand, there are three different ferroelectric phases in the antiferromagnetic phase for $H$ parallel to the c axis.

4 pages, 3 figures, LT26 proceedings, accepted for publication in J. Phys.: Conf. Ser

References in corpus (2)

• Spin current and magneto-electric effect in non-collinear magnets
• Successive phase transitions to antiferromagnetic and weak-ferromagnetic long-range orders in quasi-one-dimensional antiferromagnet Cu${}_3$Mo${}_2$O${}_9$

Cited by in corpus (1)

• Frustrated antiferromagnetic spin chains of edge-sharing tetrahedra in volcanic minerals K3Cu3(Fe0.82Al0.18)O2(SO4)4 and K4Cu4O2(SO4)4MeCl