Single-domain ferromagnet of noncentrosymmetric uniaxial magnetic ions and magnetoelectric interaction

Abstract

The feasibility of a single-domain ferromagnet based on uniaxial magnetic ions was examined. For a noncentrosymmetric uniaxial magnetic ion of magnetic moment at a site of local electric dipole moment p, it is unknown to date whether the magnetic moment prefers to be parallel or antiparallel to the electric dipole moment. The nature of this magnetoelectric interaction was probed in terms of analogical reasoning based on the Rashba effect and density functional calculations. We show that the magnetic and electric dipole moments prefer an antiparallel arrangement, predict that Fe-doped CaZnOS is a single-domain ferromagnet like a bar magnet, and find the probable cause for the ferromagnetism and weak magnetization hysteresis in Fe-doped hexagonal ZnO and ZnS at very low dopant concentrations.

4 pages, 3 figures, supporting information

References in corpus (5)

• New Perspectives for Rashba Spin-Orbit Coupling
• Interplay between Jahn-Teller instability, uniaxial magnetism and ferroelectricity in Ca3CoMnO6
• Magnetic order in the frustrated Ising-like chain compound Sr${}_3$NiIrO${}_6$
• Spin orientations of the spin-half Ir4+ ions in Sr3NiIrO6, Sr2IrO4 and Na2IrO3: Density functional, perturbation theory and Madelung potential analyses
• Frustrated Ising chains on the triangular lattice in Sr${}_3$NiIrO${}_6$