Magnetic field induced ferroelectricity and half magnetization plateau in polycrystalline 
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Chen, R.; Wang, J. F.; Ouyang, Zhongwen; He, Zhidong; Wang, S. M.; Lin, Lin; Liu, J. M.; Lu, Ching Liang; Liu, Y.; Dong, Chao; Liu, C. B.; Xia, Zhengcai; Matsuo, Akira; Kohama, Yoshimitsu; Kindo, Koichi

doi:10.1103/physrevb.98.184404

Cited by 36 publications

(15 citation statements)

References 35 publications

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“…The extended J 1 − J 2 model studied in [36] shows an M = 1/2 plateau with period four symmetry breaking and dissociation of solitons as one increases or decreases the magnetization out of the plateau. In experiments done in R 2 V 2 O 7 (R=Ni,Co) a similar situation has been observed, together with a sharp change in P on both sides of the 1/2 plateau [17]. In spite of these differences, the behavior of the magnetization and electric polarization in a magnetic field for spin gapped phases even at nonzero field (plateaux phases) seems to be ubiquitous in all of the materials listed above.…”

supporting

confidence: 63%

“…Previous studies [16][17][18][19][20][21][22][23] have linked magnetostriction effects to magnetoelectricity, in particular for quasi-one dimensional materials like Ca 3 CoMnO 6 [16], R 2 V 2 O 7 (R=Ni, Co) [17], double perovskites R 2 CoMnO 6 (R=Er, Ho, Tm, Yb, Lu) [18], and also for more general cases such as magnetic E-type HoMnO 3 manganite [19,20], the nickelate family RNiO 3 (R=La, Pr, Nd, Sm, . .…”

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confidence: 99%

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Microscopic model for magnetoelectric coupling through lattice distortions

et al. 2019

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We propose a microscopic magneto-electric model in which the coupling between spins and electric dipoles is mediated by lattice distortions. The magnetic sector is described by a spin S=1/2 Heisenberg model coupled directly to the lattice via a standard spin-Peierls term and indirectly to the electric dipole variables via the distortion of the surrounding electronic clouds. Electric dipoles are described by Ising variables for simplicity. We show that the effective magneto-electric coupling which arises due the interconnecting lattice deformations is quite efficient in one-dimensional arrays. More precisely, we show using bosonization and extensive DMRG numerical simulations that increasing the magnetic field above the spin Peierls gap, a massive polarization switch-off occurs due to the proliferation of soliton pairs. We also analyze the effect of an external electric field E when the magnetic system is in a gapped (plateau) phase and show that the magnetization can be electrically switched between clearly distinct values. More general quasi-one-dimensional models and two-dimensional systems are also discussed.

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supporting

confidence: 63%

mentioning

confidence: 99%

Microscopic model for magnetoelectric coupling through lattice distortions

et al. 2019

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“…For instance, Lu 2 MnCoO 6 [16] and Er 2 CoMnO 6 [17] show a polarization jump when exiting the observed M = 0 magnetization plateau. Closely related are the polarization jumps observed in R 2 V 2 O 7 (R = Ni, Co) when entering and exiting the M = 1/2 magnetization plateau [81]. We expect that the present results could help in fitting actual parameters in these materials and explain the observed jumps.…”

Section: Polarization Jump Driven By Magnetic Fieldsupporting

confidence: 71%

Topological solitons and bulk polarization switch in collinear type-II multiferroics

et al. 2021

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We introduce a microscopic model for collinear multiferroics capable to reproduce, as a consequence of magnetic frustration and easy-axis anisotropy, the so-called "uudd" (or antiphase) magnetic ordering observed in several type II multiferroic materials. The crucial role of lattice distortions in the multiferroic character of these materials is entered into the model via an indirect magnetoelectric coupling, mediated by elastic degrees of freedom through a pantograph mechanism. Long range dipolar interactions set electric dipoles in the antiferroelectric order. We investigate this model by means of extensive DMRG computations and complementary analytical methods. We show that a lattice dimerization induces an spontaneous Z2 ferrielectric bulk polarization, with a sharp switch off produced by a magnetic field above a critical value. The topological character of the magnetic excitations makes this mechanism robust.

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“… Vanadate M 2 V 2 O 7 , another family that was found to show type-II multiferroicity. In (Ni, Co) 2 V 2 O 7 , two multiferroic phases were respectively identified at low and high magnetic field regions, while a non-ferroelectric phase in between them with a half-magnetization plateau was observed [ 52 ]. These observations are similar to the measured results on Ni 3 V 2 O 8 and MWO 4 , and the existence of multiple multiferroic phases may be utilized for unusual ME memory applications [ 53 , 54 ].…”

Section: Type-ii Multiferroicsmentioning

confidence: 99%

Single-phase multiferroics: new materials, phenomena, and physics

Lin

et al. 2019

National Science Review

168

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Multiferroics, where multiple ferroic orders coexist and are intimately coupled, promise novel applications in conceptually new devices on one hand, and on the other hand provide fascinating physics that is distinctly different from the physics of high-TC superconductors and colossal magnetoresistance manganites. In this mini-review, we highlight the recent progress of single-phase multiferroics in the exploration of new materials, efficient roadmaps for functionality enhancement, new phenomena beyond magnetoelectric coupling, and underlying novel physics. In the meantime, a slightly more detailed description is given of several multiferroics with ferrimagnetic orders and double-layered perovskite structure and also of recently emerging 2D multiferroics. Some emergent phenomena such as topological vortex domain structure, non-reciprocal response, and hybrid mechanisms for multiferroicity engineering and magnetoelectric coupling in various types of multiferroics will be briefly reviewed.

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Magnetic field induced ferroelectricity and half magnetization plateau in polycrystalline R2V2O7(R=Ni,

Cited by 36 publications

References 35 publications

Microscopic model for magnetoelectric coupling through lattice distortions

Microscopic model for magnetoelectric coupling through lattice distortions

Topological solitons and bulk polarization switch in collinear type-II multiferroics

Single-phase multiferroics: new materials, phenomena, and physics

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