Mechanisms and origin of multiferroicity

Barone, Paolo; Picozzi, Silvia

doi:10.1016/j.crhy.2015.01.009

Cited by 28 publications

(16 citation statements)

References 102 publications

(151 reference statements)

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“…Furthermore, going beyond just primary ferroic states, the initial concept of coexisting orders has been expanded, now also including, e.g. antiferromagnetism and multi-phase materials like laminates, solid solutions, and layered (thin film) architectures [7][8][9][10][11][12]. In this work, we will use this modern interpretation when referring to multiferroics.…”

Section: From Ferroelectromagnets To Multiferroicsmentioning

confidence: 99%

A short history of multiferroics

Lottermoser

Meier

2020

Physical Sciences Reviews

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The realization that materials with coexisting magnetic and ferroelectric order open up efficient ways to control magnetism by electric fields unites scientists from different communities in the effort to explore the phenomenon of multiferroics. Following a tremendous development, the field has now gained some maturity. In this article, we give a succinct review of the history of this exciting class of materials and its evolution from “ferroelectromagnets” to “multiferroics” and beyond.

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Section: From Ferroelectromagnets To Multiferroicsmentioning

confidence: 99%

A short history of multiferroics

Lottermoser

Meier

2020

Physical Sciences Reviews

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“…Other than the dielectric function, we have also investigated frequency dependent energy loss function, refractive index, optical conductivity and reflectivity. Dielectric response of the material is mainly associated with the multiferroicity [42]. Penn ' s model can be expressed as [43]:…”

Section: Optical Properties 2 Dielectric Functionmentioning

confidence: 99%

First Principles Insight of Structural, Vibrational, Mechanical and Optoelectronic Properties of LiBH4 for Hydrogen Storage and Optoelectronic Devices

Khalil

Hussain

et al. 2020

Preprint

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To cope with the energy crisis and global warming issues, researcher are rendering their efforts and paying their attentions to analyze and fabricate hydrogen storage devices. In this regard, we report a comprehensive study on the structural, vibrational, and optoelectronic properties of Lithium Borohydride (LiBH4), a hydrogen storage material. For this purpose, calculations of structural properties have been made using the local, non-local and hybrid functionals within the framework of density functional theory (DFT). The lattice constants for the orthorhombic phase are determined by applying LDA, PBE and HSE06 density functionals and their results are compared with available experimental and theoretical studies. In order to determine IR and Raman active modes of vibrations, vibrational spectroscopy has been utilized through Density Functional Perturbation Theory (DFPT) approach. Li, B and H atoms are noticed to be contributing in the modes of vibrations between different ranges of frequencies, i.e., 0 to 400 cm-1, 1100 to 1300 cm-1 and 2250-2400 cm-1. The respective values of band gaps are found to be 6.35 eV, 6.81 eV and 7.58 eV for LDA, PBE and HSE06 functionals, respectively, leading to indicate insulating nature of LiBH4 which makes it a promising candidate for applications in optoelectronic devices. The mechanical analysis reveals that LiBH4 is a brittle material. The optical properties such as dielectric constant, refractive index, reflectivity, absorptivity, conductivity and loss function are also calculated with the aid of well-recognized relation of Kramer-Kronig. The plasma frequency is noted at the highest peak (13.7 eV) of the energy loss function.

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“…This model is usually applied to large magnetic structures such as magnetic spirals and domain walls, which are on the energy scale of the demagnetization field. To carry this—or any other ionic displacement mechanism 48 —over to weaker magnetic inhomogeneities such as spin-waves is not trivial. It is not obvious that a coupling constant measured using a domain wall 34 should be applicable to spin-waves, although that is what we assume by using these values.…”

Section: Magnon-induced Dynamics In Homogeneously Magnetized Multifermentioning

confidence: 99%

Electric field control of magnon-induced magnetization dynamics in multiferroics

Risinggård

Kulagina

Linder

2016

Sci Rep

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We consider theoretically the effect of an inhomogeneous magnetoelectric coupling on the magnon-induced dynamics of a ferromagnet. The magnon-mediated magnetoelectric torque affects both the homogeneous magnetization and magnon-driven domain wall motion. In the domains, we predict a reorientation of the magnetization, controllable by the applied electric field, which is almost an order of magnitude larger than that observed in other physical systems via the same mechanism. The applied electric field can also be used to tune the domain wall speed and direction of motion in a linear fashion, producing domain wall velocities several times the zero field velocity. These results show that multiferroic systems offer a promising arena to achieve low-dissipation magnetization rotation and domain wall motion by exciting spin-waves.

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Mechanisms and origin of multiferroicity

Cited by 28 publications

References 102 publications

A short history of multiferroics

A short history of multiferroics

First Principles Insight of Structural, Vibrational, Mechanical and Optoelectronic Properties of LiBH4 for Hydrogen Storage and Optoelectronic Devices

Electric field control of magnon-induced magnetization dynamics in multiferroics

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