Giant Magnetoelectric Effect in HoAl_3(BO_3)_4

Abstract

A giant magnetoelectric polarization is found in HoAl${}_3$(BO${}_3$)${}_4$. The polarization in transverse field geometry at 70 kOe reaches 3600 $\mu C/m^2$ which is significantly higher than reported values of linear magnetoelectric or even multiferroic compounds. The magnetostrictive effect is also measured and compared with the magnetoelectricity. The results show that spin-lattice coupling in HoAl${}_3$(BO${}_3$)${}_4$ is extremely strong and that the magnetic field causes a large polar distortion of the ionic positions in the unit cell.

4 pages, 4 figures

References in corpus (5)

• Multiferroics: different ways to combine magnetism and ferroelectricity
• Ferroelectric polarization flop in a frustrated magnet MnWO${}_4$ induced by magnetic fields
• Magnetoelectric Effect and Spontaneous Polarization in HoFe${}_3$(BO${}_3$)${}_4$ and Ho${}_{0.5}$Nd${}_{0.5}$Fe${}_3$(BO${}_3$)${}_4$
• Magnetic Field Effect and Dielectric Anomalies at the Spin Reorientation Phase Transition of GdFe3(BO3)4
• Magnetoelectricity and Magnetostriction due to the Rare Earth Moment in TmAl${}_3$(BO${}_3$)${}_4$

Cited by in corpus (13)

• Giant gigahertz optical activity in multiferroic ferroborate
• Unusual magnetoelectric effect in paramagnetic rare-earth langasite
• Magnetoelectricity in the system $RA{l}_3(B{O}_3{)}_4$ ($R$ = Tb, Ho, Er, Tm)
• Sign change of polarization rotation under either time or space inversion in magnetoelectric YbAl3(BO3)4
• Terahertz spectroscopy of crystal-field transitions in magnetoelectric TmAl3(BO3)4
• Spectroscopy of f-f transitions, crystal-field calculations, and magnetic and quadrupole helix chirality in DyFe${}_3$(BO${}_3$)${}_4$
• Quantum versus classical nature of a low-temperature magnetic phase transition in TbAl${}_3$(BO${}_3$)${}_4$
• The effect of local distortions on magnetic and magnetoelectric properties of paramagnetic Pr3Ga5SiO14 langasite
• Trirefringence in nonlinear magnetoeletric metamaterials revisited
• Resolving the local distortions of Ising-like moments in magnetoelectric Ho-doped langasite
• Quadratic magnetoelectric effect during field cooling in sputter grown Cr${}_2$O${}_3$ films
• Strong spintronic magnetoelectric effect in layered magnetic metamaterial
• Terahertz optical activity near crystal field transitions of Tm3+ ions in magnetoelectric alumoborates