Switching of Magnons by Electric and Magnetic Fields in Multiferroic Borates

Kuzmenko, A. M.; Szaller, D.; Kain, Th.; Dziom, V.; Weymann, L.; Shuvaev, A.; Pimenov, A.; Mukhin, A. A.; Ivanov, V. Yu.; Гудим, И. А.; Безматерных, Л. Н.

doi:10.1103/physrevlett.120.027203

Cited by 29 publications

(21 citation statements)

References 71 publications

(120 reference statements)

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“…The compounds having the former type show large electric polarization: ∼ 300 µC/m 2 for NdFe 3 (BO 3 ) 4 [12] and ∼ 400 µC/m 2 for SmFe 3 (BO 3 ) 4 [18]. Furthermore, intriguing characters including quadrupole helix chirality [31], non-trivial manifestation of electron-phonon coupling [32], and electricand magnetic-field control of magnons [33] have been found in recent studies. The rare-earth ferroborates are thus fascinated series of the multiferroic compounds.…”

Section: Introductionmentioning

confidence: 89%

Magnetic order in the rare-earth ferroborate CeFe3(BO3)4

et al. 2018

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We have studied the magnetic order of the rare-earth ferroborate CeFe3(BO3)4 through the thermodynamic and the neutron diffraction measurements. The heat capacity and the magnetic susceptibility revealed antiferromagnetic magnetic ordering at 29 K. In the neutron powder diffraction data, we observed the magnetic Bragg peaks indexed by the commensurate (CM) propagation vector kCM = (0, 0, 3 2) and the incommensurate (ICM) vector kICM = (0, 0, 3 2 +δ). The incommensurability δ increases with decreasing the temperature, and is evaluated to be 0.04556(16) at 3.7 K. Magnetic structure analysis reveals that the magnetic moments aligning in the ab plane form the collinear antiferromagnetic structure having kCM and helical structure having kICM. Detailed measurements of the magnetic susceptibility exhibit an additional anomaly at 27 K. Furthermore, the temperature dependence of the neutron diffraction profile on the single-crystal sample shows that the ICM and CM ordering occurs at 29 K and 26 K, respectively. These results suggest a phase separation state between the collinear and helical structures. The multiferroicity of CeFe3(BO3)4 is discussed on the basis of the determined magnetic structure.

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Section: Introductionmentioning

confidence: 89%

Magnetic order in the rare-earth ferroborate CeFe3(BO3)4

et al. 2018

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“…[ 15,16 ] Moreover, depending upon the material used, magnon excitations can be manipulated using external electric and magnetic fields. [ 17,18 ] The strength of magnon excitation strongly depends on the particle size, vacancy concentrations and the surface effects of the nanomaterials. The particle size dependent magnon properties of NiO nanoparticles are recently reported in our article [ 19 ] and similar kind of observations are also reported by Bala et al [ 20 ] The magnon excitations decrease with reduction in particle size due to the reduced spin correlation between the next nearest neighbor (NNN) Ni 2+ ions in the NiO crystal lattice.…”

Section: Introductionmentioning

confidence: 99%

Laser‐induced phonon and magnon properties of NiO nanoparticles: A Raman study

Sunny

2021

J Raman Spectroscopy

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In the present study, the influence of laser intensity on phonon and magnon properties of nickel oxide (NiO) nanoparticles were extensively studied using room temperature Raman spectroscopy. The required NiO nanoparticles were synthesized using a simple sol–gel method. The structural and morphological properties were characterized using powder X‐ray diffraction (XRD), field emission scanning electron microscopy (FE‐SEM), and transmission electron microscopy (TEM) techniques. The rarely reported surface optical (SO) phonon modes of NiO nanoparticles were observed and well‐studied using the dielectric continuum (DC) model. A mismatch between the experimental and DC model SO phonon wavenumbers were observed and is attributed to one magnon‐induced first order phonon shift. The difference between the experimental and DC model SO phonon wavenumbers were reduced with increase in laser power, which indicates the diminishing behavior of magnon excitations. The laser power dependency of highly distinguishable two magnon (2 M) excitation of NiO nanoparticles were well studied. The 2 M modes were experienced a red shift and decrease in intensity with increase in laser power.

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“…The propagation of spin waves is free of charge transport, and hence can avoid Joule heating induced energy loss in nowadays micro-or nano-electronic devices; also spin waves are less subject to dissipation caused by scattering with impurities on the atomic level because of the charge current free property. In addition, spin waves can be easily manipulated by an applied magnetic field, and in magnetoelectric multiferroics which possess coexisting magnetic and ferroelectric phases, they can be manipulated by applied an electric field [21][22][23][24][25][26][27][28][29]. Moreover, for same frequency spin wave and electromagnetic wave, the wavelength of spin wave is several orders of magnitude shorter.…”

Section: Introductionmentioning

confidence: 99%

Anomalous Behaviors of Spin Waves Studied by Inelastic Light Scattering

et al. 2019

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Magnonics, an emerging research field, aims to control and manipulate spin waves in magnetic materials and structures. However, the current understanding of spin waves remains quite limited. This review attempts to provide an overview of the anomalous behaviors of spin waves in various types of magnetic materials observed thus far by inelastic light scattering experiments. The anomalously large asymmetry of anti-Stokes to Stokes intensity ratio, broad linewidth, strong resonance effect, unique polarization selection, and abnormal impurity dependence of spin waves are discussed. In addition, the mechanisms of these anomalous behaviors of spin waves are proposed. spectroscopy is applied for studying vibrational properties of materials. However, due to the anomalous behaviors of spin wave scattering comparing with vibrational scattering, Raman spectroscopy study of spin wave is difficult and limited. In this paper, we present a review of anomalous behaviors of spin waves observed by inelastic light scattering experiments, especially by Raman spectroscopy. The large asymmetry of anti-Stokes to Stokes intensity ratio, broad linewidth, strong resonance effect, unique polarization selection, and abnormal impurity dependence of spin waves are discussed, and a proposed model for the mechanisms of spin flip, spin relaxing, and spin wave scattering is presented for understanding these anomalous behaviors of spin waves. In addition, two magnonic crystal structures are proposed for manipulating spin waves through analyses of the abnormal impurity dependence of spin waves. The review of the anomalous behaviors of spin waves and the proposed models provide the directions for easier experimental study of spin waves by inelastic light scattering, which will be useful for raising the research efforts for investigating spin waves. This is important for the emerging research of magnonics, which has received extensive interests in the modern magnetism research community.

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Switching of Magnons by Electric and Magnetic Fields in Multiferroic Borates

Cited by 29 publications

References 71 publications

Magnetic order in the rare-earth ferroborate CeFe3(BO3)4

Magnetic order in the rare-earth ferroborate CeFe3(BO3)4

Laser‐induced phonon and magnon properties of NiO nanoparticles: A Raman study

Anomalous Behaviors of Spin Waves Studied by Inelastic Light Scattering

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