Microwave directional dichroism resonant with spin excitations in the polar ferromagnet GaV${}_4$S${}_8$

Abstract

We have investigated the directional dichroism of magnetic resonance spectra in the polar ferromagnet GaV${}_4$S${}_8$. While four types of structural domains are energetically degenerated under zero field, the magnetic resonance for each domain is well separated by applying magnetic fields due to uniaxial magnetic anisotropy. Consequently, the directional dichroism as large as 20 % is clearly observed without domain cancellation. The present observation therefore demonstrates that not only magnetoelectric mono-domain crystals but also magnetoelectric multi-domain specimens can be used to realize microwave (optical) diodes owing to the lack of inversion domains.

References in corpus (14)

• Giant directional dichroism of terahertz light in resonance with magnetic excitations of the multiferroic oxide BaCo${}_2$Ge${}_2$O${}_7$
• Multiferroicity and skyrmions carrying electric polarization in GaV4S8
• Chirality of Matter Shows Up via Spin Excitations
• Four-coloured Spin-wave Excitations in Multiferroic Materials
• Symmetry Conditions for Non-reciprocal Light Propagation in Magnetic Crystals
• Optical diode effect in the room-temperature multiferroic BiFeO$_3
• High-temperature terahertz optical diode effect without magnetic order in polar FeZnMo${}_3$O${}_8$
• Magnetic Excitations in the Multiferroic Néel-type Skyrmion Host GaV${}_4$S${}_8$
• Characteristics of ferroelectric-ferroelastic domains in N{é}el-type skyrmion host GaV${}_4$S${}_8$
• Magnetoelectric memory function with optical readout
• Cycloidally modulated magnetic order stabilized by thermal fluctuations in the Néel-type skyrmion host GaV${}_4$S${}_8$
• Unidirectional terahertz light absorption in the pyroelectric ferrimagnet CaBaCo4O7
• Magnetoelectrical control of nonreciprocal microwave response in a multiferroic helimagnet
• Microwave Magneto-Chiral Effect in a Noncentro-symmetric Magnet CuB2O4

Cited by in corpus (6)

• Ferromagnetic resonance with magnetic phase selectivity by means of resonant elastic x-ray scattering on a chiral magnet
• Spin excitations of magnetoelectric LiNiPO${}_4$ in multiple magnetic phases
• Magnetic phase transitions and spin density distribution in the molecular multiferroic GaV${}_4$S${}_8$ system
• Establishing magneto-structural relationships in the solid solutions of the skyrmion hosting family of materials: GaV${}_4$S${}_{8-y}$Se${}_y$
• Non-collinear ground state from a four-spin chiral exchange in a tetrahedral magnet
• Broadband Microwave Spectroscopy for Two-Dimensional Material Systems