Proprietes magnetiques et structures du manganite d'yttrium

Bertaut, E.F.; Pauthenet, R.; Mercier, M.

doi:10.1016/0031-9163(63)90627-9

Cited by 50 publications

(28 citation statements)

References 5 publications

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“…Early works in the 1960 s established YMnO 3 to be ferroelectric [10,11] with space group p6 3 cm and revealed an antiferromagnetic (AFM) ordering with non-collinear Mn spins oriented in a triangular arrangement [5,12]. In spite of the large difference between the ferroelectric and magnetic ordering temperatures, the observations of anomalies in the dielectric constant and loss tangent in YMnO 3 are indicative of coupling between the ferroelectric and magnetic ordering [13].…”

Section: Introductionmentioning

confidence: 85%

First-principles studies of the magnetic structure and exchange interactions in the frustrated multiferroic

Zhong

Jiang

et al. 2009

Journal of Magnetism and Magnetic Materials

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Section: Introductionmentioning

confidence: 85%

First-principles studies of the magnetic structure and exchange interactions in the frustrated multiferroic

Zhong

Jiang

et al. 2009

Journal of Magnetism and Magnetic Materials

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“…They were coined as "proper" ferroelectrics. [12,102]. The ferroelectric polarization arises from an off-center distortion of Mn ions towards one of the apical oxygen ions.…”

Section: Geometric Ferroelectricity In Hexagonal Manganitesmentioning

confidence: 99%

Multiferroicity: the coupling between magnetic and polarization orders

Wang

Liu

Ren

2009

Advances in Physics

1,388

598

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[Abstract] Multiferroics, defined for those multifunctional materials in which two or more kinds of fundamental ferroicities coexist, have become one of the hottest topics of condensed matter physics and materials science in recent years. The coexistence of several order parameters in multiferroics brings out novel physical phenomena and offers possibilities for new device functions. The revival of research activities on multiferroics is evidenced by some novel discoveries and concepts, both experimentally and theoretically. In this review article, we outline some of the progressive milestones in this stimulating field, specially for those single phase multiferroics where magnetism and ferroelectricity coexist. Firstly, we will highlight the physical concepts of multiferroicity and the current challenges to integrate the magnetism and ferroelectricity into a single-phase system. Subsequently, we will summarize various strategies used to combine the two types of orders. Special attentions to three novel a) E-mail: liujm@nju.edu.cn b) E-mail: renzh@bc.edu Multiferroics 2 mechanisms for multiferroicity generation: (1) the ferroelectricity induced by the spin orders such as spiral and E-phase antiferromagnetic spin orders, which break the spatial inversion symmetry, (2) the ferroelectricity originating from the charge ordered states, and (3) the ferrotoroidic system, will be paid. Then, we will address the elementary excitations such as electromagnons, and application potentials of multiferroics. Finally, open questions and opportunities will be prospected.

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“…Equation (25) has been used by Wilkinson & Lisher (1973) to tabulate the form of the averaged SDPF for all possible point groups R. We stress, however, that while equation (25) (Bertaut, Pauthenet & Mercier, 1963) and the example of Fig. l(b) of Wilkinson & Lisher (1973).…”

Section: -N ~ I {F~(ixl)rs[(riv(r))-~r]" × Rs[(riv(r)]-i(r + U)l + F2mentioning

confidence: 99%

The symmetry of the spin-density Patterson function

Литвин¹

1974

Acta Cryst Sect A

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P. M. DE WOLFF 785smooth nature of the modulation functions f~(x4) or u~(r) from § 5. As stated earlier, the continuity of these functions is an essential feature of modulated structures.The author is greatly indebted to Dr Tuinstra (Delft) and to Professor Janner and Dr Janssen (Nijmegen) for reading and most helpfully criticising the manuscript. Generalized space groups are defined to describe the symmetry of a spin-density Patterson function due to the spin-group (generalized magnetic group) symmetry of a spin arrangement. The information on spin arrangements obtainable from the generalized space-group symmetry of a spin-density Patterson function is discussed. It is shown that one cannot infer from the symmetry of the spin-density Patterson function the characteristic spin-group symmetry of a spiral spin arrangement, and an alternate method of doing so is given. References

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Proprietes magnetiques et structures du manganite d'yttrium

Cited by 50 publications

References 5 publications

First-principles studies of the magnetic structure and exchange interactions in the frustrated multiferroic

First-principles studies of the magnetic structure and exchange interactions in the frustrated multiferroic

Multiferroicity: the coupling between magnetic and polarization orders

The symmetry of the spin-density Patterson function

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