Ferroelectricity and magnetoelectric coupling in <i>h</i>-YbMnO3: Spin reorientation and defect effect

Qiang, Gang; Fang, Yifei; Lu, Xiaowen; Cao, Shixun; Zhang, Jincang

doi:10.1063/1.4939916

Cited by 13 publications

(7 citation statements)

References 38 publications

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“…Furthermore, the magnetic transition at TR ~ 40 K identified here was also reported for the h-Lu1-xScxFeO3 single crystal [17]. It is noted that all the h-RMnO3 and those h-RFeO3 containing Sc samples exhibit spin reorientation at low temperature, e.g., T = 37 K for h-HoMnO3 [39], 43.5 K for h-YbMnO3 [40], 40 K for h-LuMnO3 [41], 35 K for h-YMn0.9Fe0.1O3 [42], and 45 K for h-Lu0.5Sc0.5FeO3 [17]. The earlier neutron scattering provided clear evidence for the Mn/Fe ionic shift from the 1/3 position [17,43].…”

Section: B Magnetic Phase Transitionssupporting

confidence: 81%

Magnetic structure and multiferroicity of Sc-substituted hexagonal YbFeO3

et al. 2021

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Hexagonal rare-earth ferrite RFeO3 family represents a unique class of multiferroics exhibiting weak ferromagnetism, and a strong coupling between magnetism and structural trimerization is predicted. However, the hexagonal structure for RFeO3 remains metastable in conventional condition. We have succeeded in stabilizing the hexagonal structure of polycrystalline YbFeO3 by partial Sc substitution of Yb. Using bulk magnetometry and neutron diffraction, we find that Yb0.42Sc0.58FeO3 orders into a canted antiferromagnetic state with the Néel temperature TN ~ 165 K, below which the Fe 3+ moments form the triangular configuration in the ab-plane and their in-plane projections are parallel to the [100] axis, consistent with magnetic space group P63c'm'. It is determined that the spin-canting is aligned along the c-axis, giving rise to the weak ferromagnetism. Furthermore, the Fe 3+ moments reorient toward a new direction below reorientation temperature TR ~ 40 K, satisfying magnetic subgroup P63, while the Yb 3+ moments order independently and ferrimagnetically along the c-axis at the characteristic temperature TYb ~ 15 K. Interestingly, reproducible modulation of electric polarization induced by magnetic field at low temperature is achieved, suggesting that the delicate structural distortion associated with two-up/one-down buckling of the Yb/Sc-planes and tilting of the FeO5 bipyramids may mediate the coupling between ferroelectric and magnetic orders under magnetic field. The present work represents a substantial progress to search for high-temperature multiferroics in hexagonal ferrites and related materials.

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Section: B Magnetic Phase Transitionssupporting

confidence: 81%

Magnetic structure and multiferroicity of Sc-substituted hexagonal YbFeO3

et al. 2021

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“…The maximum polarization value in SrFe 12 O 19 is about 4200 lC/m 2 when H = 0 T and increases to 4500 lC/m 2 when H = 5 T, which is much larger than the polarization in many perovskite manganite such as DyMnO 3 and HoMnO 3 [21]. The maximum polarization values under positive and negative electric field are different (positive at 4200 lC/m 2 , negative at 4000 lC/m 2 ), which is caused by defects in the material, and have been observed and explained detailedly in other works [22,23]. The coexistence of ferromagnetic and ferroelectric property manifests the multiferroic character of SrFe 12 O 19 and the external magnetic filed-enhanced polarization directs to the magnetoelectric coupling.…”

Section: Electrical Propertiesmentioning

confidence: 75%

Temperature effect on the magnetic property and ferroelectricity in hexaferrite SrFe12O19

Qiang

Jin

et al. 2016

Appl. Phys. A

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We studied the temperature effect on magnetic and electrical properties in bulk SrFe 12 O 19 prepared by conventional ceramic technique. The jumping behavior of magnetization has been observed under the zero-fieldcooling mode, but disappeared under the field-cooled cooling mode. The spin moment of iron ions reorients below 50 K leading to the magnetic structure changes. Magnetic parameters, saturation magnetization (Ms) and coercivity field (Hc), show opposite tendency with temperature throughout the measuring range, which is mainly ascribed to the Fe 3? ions situated at 4f 2 and 2b sites. The curves of electrical polarization P vs temperature T under different external magnetic field indicate the existence of ferroelectricity and magnetoelectric coupling effect at low temperature, and the transition temperature T P is about 120 K.

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“…However the interpretation of the low temperature magnetic configuration, in particular when the Yb(2a) are expected to play a role, is not clear, as is the exact mutual orientations of the three magnetic ions under magnetic field. Moreover, hysteretic effects, the coexistence of competing phases even in zero field or a spin reorientation at intermediate temperature have also been reported [16][17][18] justifying the necessity of single-crystal neutron diffraction experiment on this composition.…”

Section: Introductionmentioning

confidence: 85%

Single-crystal neutron diffraction study of hexagonal multiferroic YbMnO3 under a magnetic field

et al. 2018

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We report single-crystal neutron diffraction study of the magnetic structure of the multiferroic compound YbMnO3, a member of the hexagonal manganite family, in zero-field and under a magnetic field applied along the c-axis. We propose a scenario for the zero-field magnetic ordering and for the field-induced magnetic reorientation of the Mn and of the two Yb on distinct crystallographic sites, compatible with the macroscopic measurements, as well as with previous powder neutron diffraction experiment and results from other techniques (optical second harmonic generation, Mössbauer spectroscopy). Our study should contribute in settling some debated issues about the magnetic properties of this material, as part of a broader investigation of the entire hexagonal RMnO3 (R = Dy, Ho, Er, Tm, Yb, Lu, Y) family. arXiv:1809.09370v1 [cond-mat.str-el]

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Ferroelectricity and magnetoelectric coupling in h-YbMnO3: Spin reorientation and defect effect

Cited by 13 publications

References 38 publications

Magnetic structure and multiferroicity of Sc-substituted hexagonal YbFeO3

Magnetic structure and multiferroicity of Sc-substituted hexagonal YbFeO3

Temperature effect on the magnetic property and ferroelectricity in hexaferrite SrFe12O19

Single-crystal neutron diffraction study of hexagonal multiferroic YbMnO3 under a magnetic field

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