Gavin Lawes

TL;DR: The relationships among magnetism, lattice modulation, and dielectric properties have been investigated for RMnO3 and it was found that the IC-C transition is accompanied by a ferroelectric transition, associated with a lattices modulation in the C phase.

TL;DR: The magnetoelectric phase diagram of rare-earth manganites with orthorhombically distorted perovskite structure has been investigated in this paper, showing that a ferroelectric phase with electric polarization along the $a$ axis appears by applying $H(g\ensuremath{\sim}1\phantom{\rule{0.3em}{0ex}}\mathrm{T})$ along the b$ axis.

TL;DR: This phenomenological theory explains the experimental observation that the spontaneous polarization is restricted to lie along the crystal b axis and predicts that the magnitude should be proportional to a magnetic order parameter.

TL;DR: In this paper, the properties of semiconducting bulk ZnO when substituted with the magnetic transition metal ions Mn and Co, with substituent fraction ranging from 0.02$ to 0.15$, were measured as a function of magnetic field and temperature and they found no evidence for magnetic ordering in these systems down to $T=2\phantom{\rule{0.3em}{0ex}}\mathrm{K}$.

TL;DR: By applying magnetic fields (B) in a hexaferrite having magnetic order above room temperature (RT), the system undergoes successive metamagnetic transitions, and shows concomitant ferroelectric order in some of the B-induced phases with long-wavelength magnetic structures.