Switching of the Chiral Magnetic Domains in the Hybrid Molecular/Inorganic Multiferroic (ND4)2[FeCl5(D2O)]

Rodríguez-Velamazán, J. A.; Fabelo, Óscar; Campo, Javier; Rodrı́guez-Carvajal, J.; Qureshi, N.; Chapon, L. C.

doi:10.1038/s41598-018-28883-z

Cited by 19 publications

(12 citation statements)

References 40 publications

(70 reference statements)

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“…They attributed the induced electric polarization to the two different mechanisms of ME coupling: the spin-current mechanism, which is responsible for the magnetic field below 5 T, and the spin-dependent p-d hybridization [40] Copyright 2017, AIP Publishing. mechanism, which is responsible for the magnetic field above 5 T. They also confirmed the spin configurations for the cycloidal (T < 6.9 K) and collinear sinusoidal (6.9 K < T < 7.2 K) phases of (ND 4 ) 2 [FeCl 5 (D 2 O)], [57] and achieved the switch of magnetic domains by applying an electric field at low temperature, which directly proved the existence of strong ME coupling.…”

Section: (Nh 4 ) 2 [Fecl 5 (H 2 O)]supporting

confidence: 59%

Inorganic–Organic Hybrid Molecular Materials: From Multiferroic to Magnetoelectric

Liu

Zhao

et al. 2021

Advanced Materials

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Inorganic-organic hybrid molecular multiferroic and magnetoelectric materials, similar to multiferroic oxide compounds, have recently attracted increasing attention because they exhibit diverse architectures, a flexible framework, fascinating physics, and potential magnetoelectric functionalities in novel multifunctional devices such as energy transformation devices, sensors, and information storage systems. Herein, the classification of multiferroicity and magnetoelectricity is briefly outlined and then the recent advances in the multiferroicity and magnetoelectricity of inorganic-organic hybrid molecular materials, particularly magnetoelectricity and the relevant magnetoelectric mechanisms and their categories are summarized. In addition, a personal perspective and an outlook are provided.

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Section: (Nh 4 ) 2 [Fecl 5 (H 2 O)]supporting

confidence: 59%

Inorganic–Organic Hybrid Molecular Materials: From Multiferroic to Magnetoelectric

Liu

Zhao

et al. 2021

Advanced Materials

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“…around 7.2 K 22 . In the analogous deuterated material, a collinear sinusoidal spin structure was reported for this phase 23,24 . At the second transition at 6.7 K the spins reorient and an electric polarization arises 13 .…”

Section: Introductionmentioning

confidence: 67%

Magnetoelectric coupling in the mixed erythrosiderite [(NH4)1−xKx]<

et al. 2020

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We present a study of the dielectric, structural, and magnetic properties of the multiferroic or linear magnetoelectric substitution series [(NH4)1−xKx]2[FeCl5(H2O)]. Pyroelectric currents, magnetic susceptibilities, and thermodynamic properties were examined on large single crystals of the erythrosiderite compounds and detailed magnetic-field versus temperature phase diagrams are derived for three different substitution levels. With increasing potassium concentration the material is tuned from a multiferroic (x ≤ 0.06) to a linear magnetoelectric (x ≥ 0.15) ground state. In contrast to the respective pure parent compounds with x = 0 or 1, however, the ferroelectric or linear magnetoelectric polarization in none of the substituted samples is switchable by external electric fields, because these samples exhibit a significant electric polarization already above the magnetic ordering transition. The polarization arises at a higher-lying structural phase transition that is examined by THz spectroscopy and, on a deuterated pure single crystal, by comprehensive neutron-diffraction experiments. The structural phase transition is attributed to an ordering of NH + 4 tetrahedra but does not break inversion symmetry in the pure material, while a finite K content causes pyroelectricity.

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“…In the analogous deuterated material, a collinear sinusoidal spin structure was reported for this phase [25,26]. At the second transition at 6.7K the spins reorient and an electric polarization arises [15].…”

Section: Introductionmentioning

confidence: 77%

Domain switching and exchange bias control by electric field in the multiferroic conical magnet Mn2GeO4

2020

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We present a study of the dielectric, structural, and magnetic properties of the multiferroic or linear magnetoelectric substitution series [(NH 4) 1−x K x ] 2 [FeCl 5 (H 2 O)]. Pyroelectric currents, magnetic susceptibilities, and thermodynamic properties were examined on large single crystals of the erythrosiderite compounds and detailed magnetic-field versus temperature phase diagrams are derived for three different substitution levels. With increasing potassium concentration the material is tuned from a multiferroic (x 0.06) to a linear magnetoelectric (x 0.15) ground state. In contrast to the respective pure parent compounds with x = 0 or 1, however, the ferroelectric or linear magnetoelectric polarization in none of the substituted samples is switchable by external electric fields because these samples exhibit a significant electric polarization already above the magnetic ordering transition. The polarization arises at a higher-lying structural phase transition that is examined by THz spectroscopy, and, on a deuterated pure single crystal, by comprehensive neutron-diffraction experiments. The structural phase transition is attributed to an ordering of NH + 4 tetrahedra but does not break inversion symmetry in the pure material, while a finite K content causes pyroelectricity.

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Switching of the Chiral Magnetic Domains in the Hybrid Molecular/Inorganic Multiferroic (ND4)2[FeCl5(D2O)]

Cited by 19 publications

References 40 publications

Inorganic–Organic Hybrid Molecular Materials: From Multiferroic to Magnetoelectric

Inorganic–Organic Hybrid Molecular Materials: From Multiferroic to Magnetoelectric

Magnetoelectric coupling in the mixed erythrosiderite [(NH4)1−xKx]<

Domain switching and exchange bias control by electric field in the multiferroic conical magnet Mn2GeO4

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