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Kenzelmann, M.; Harris, A. B.; Aharony, Amnon; Entin‐Wohlman, O.; Yildirim, Taner; Huang, Q.; Park, S.; Lawes, G.; Broholm, C.; Rogado, N.; Cava, R. J.; Kim, Kee Hoon; Jorge, G. A.; Ramirez, A. P.

doi:10.1103/physrevb.74.014429

Cited by 121 publications

(237 citation statements)

References 41 publications

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“…This oversimplification, used also in Ref. [7], means that results presented in the table have rather qualitative character.…”

Section: As An Example)mentioning

confidence: 99%

“…Of particular interest has been magnetism of the two-dimensional kagome staircase M 3 V 2 O 8 (M ¼ Ni, Co, Mn) because of the concurrent presence of both highly frustrated lattice and strong quantum fluctuations. This system displays a rich, highly anisotropic, phase diagram [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17]. Even though these materials have identical crystal symmetry and similar structural parameters, their magnetic properties are quite different.…”

Section: Introductionmentioning

confidence: 99%

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Magnetic anisotropy in geometrically frustrated kagome staircase lattices

Szymczak

Aleshkevych

Adams

et al. 2009

Journal of Magnetism and Magnetic Materials

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“…This oversimplification, used also in Ref. [7], means that results presented in the table have rather qualitative character.…”

Section: As An Example)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Magnetic anisotropy in geometrically frustrated kagome staircase lattices

Szymczak

Aleshkevych

Adams

et al. 2009

Journal of Magnetism and Magnetic Materials

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“…In writing this free energy we have assumed that the wave vectors of 1 and 2 are locked to be the same, as discussed in Ref. 38.…”

Section: ͑A11͒mentioning

confidence: 99%

Magnetic structure and magnetoelectric coupling in bulk and thin filmFeVO4

2010

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We have investigated the magnetoelectric and magnetodielectric response in FeVO 4 , which exhibits a change in magnetic structure coincident with ferroelectric ordering at T N2 ≈15 K. Using symmetry considerations, we construct a model for the possible magnetoelectric coupling in this system and present a discussion of the allowed spin structures in FeVO 4 . Based on this model, in which the spontaneous polarization is caused by a trilinear spin-phonon interaction, we experimentally explore the magnetoelectric coupling in FeVO 4 thin films through measurements of the electric field-induced shift of the multiferroic phase transition temperature, which exhibits an increase of 0.25 K in an applied field of 4 MV/m. The strong spin-charge coupling in FeVO 4 is also reflected in the significant magnetodielectric shift, which is present in the paramagnetic phase due to a quartic spin-phonon interaction and shows a marked enhancement with the onset of magnetic order which we attribute to the trilinear spin-phonon interaction. We observe a clear magnetic field-induced dielectric anomaly at lower temperatures, distinct from the sharp peak associated with the multiferroic transition, which we tentatively assign to a spin-reorientation crossover. We also present a magnetoelectric phase diagram for FeVO 4 . We have investigated the magnetoelectric and magnetodielectric response in FeVO 4 , which exhibits a change in magnetic structure coincident with ferroelectric ordering at T N2 Ϸ 15 K. Using symmetry considerations, we construct a model for the possible magnetoelectric coupling in this system and present a discussion of the allowed spin structures in FeVO 4 . Based on this model, in which the spontaneous polarization is caused by a trilinear spin-phonon interaction, we experimentally explore the magnetoelectric coupling in FeVO 4 thin films through measurements of the electric field-induced shift of the multiferroic phase transition temperature, which exhibits an increase of 0.25 K in an applied field of 4 MV/m. The strong spin-charge coupling in FeVO 4 is also reflected in the significant magnetodielectric shift, which is present in the paramagnetic phase due to a quartic spin-phonon interaction and shows a marked enhancement with the onset of magnetic order which we attribute to the trilinear spin-phonon interaction. We observe a clear magnetic field-induced dielectric anomaly at lower temperatures, distinct from the sharp peak associated with the multiferroic transition, which we tentatively assign to a spin-reorientation crossover. We also present a magnetoelectric phase diagram for FeVO 4 . Disciplines Physics | Quantum Physics

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“…[12]. As a first step towards establishing the phase diagram of KCu 3 As 2 O 7 (OD) 3 , we consider the magnetization M (H) data taken at various temperatures in the range 2 − 8 K. At 8 K, above both transitions, M (H) increases smoothly and linearly from 0 to 7 T, albeit with a slight change in slope.…”

Section: Fig 2 (Top)mentioning

confidence: 99%

Phase diagram of multiferroic KCu3As2O7(OD)3

et al. 2017

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The layered compound KCu3As2O7(OD)3, comprising distorted kagomé planes of S = 1/2 Cu 2+ ions, is a recent addition to the family of type-II multiferroics. Previous zero field neutron diffraction work has found two helically ordered regimes in KCu3As2O7(OD)3, each showing a distinct coupling between the magnetic and ferroelectric order parameters. Here, we extend this work to magnetic fields up to 20 T using neutron powder diffraction, capacitance, polarization, and high-field magnetization measurements, hence determining the H − T phase diagram. We find metamagnetic transitions in both low temperatures phases around µ0Hc ∼ 3.7 T, which neutron powder diffraction reveals to correspond to a rotation of the helix plane away from the easy plane, as well as a small change in the propagation vector. Furthermore, we show that the sign of the ferroelectric polarization is reversible in a magnetic field, although no change is observed (or expected on the basis of the magnetic structure) due to the transition at 3.7 T. We finally justify the temperature dependence of the polarization in both zero-field ordered phases by a symmetry analysis of the free energy expansion.

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Field dependence of magnetic ordering in Kagomé-staircase compoundNi3V2O8

Cited by 121 publications

References 41 publications

Magnetic anisotropy in geometrically frustrated kagome staircase lattices

Magnetic anisotropy in geometrically frustrated kagome staircase lattices

Magnetic structure and magnetoelectric coupling in bulk and thin filmFeVO4

Phase diagram of multiferroic KCu3As2O7(OD)3

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