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Stripe states in multilayer systems with perpendicular polarization are investigated by analytical calculations within a general continuum approach, applicable to ferromagnetic, ferroelectric, or ferroelastic nanoscale superlattices. The…

Materials Science · Physics 2007-05-23 Alexei N. Bogdanov , Ulrich K. Roessler

Domain walls are of increasing interest in ferroelectrics because of their unique properties and potential applications in future nanoelectronics. However, the thickness of ferroelastic domain walls remains elusive due to the challenges in…

Materials Science · Physics 2021-03-30 Mingqiang Li , Xiaomei Li , Yuehui Li , Heng-Jui Liu , Ying-Hao Chu , Peng Gao

Thermodynamic properties of the helical spins with magnetoelectric coupling is simulated by Monte Carlo algorithm. It is shown that the spin-spin correlations are affected by the thermal fluctuations and the electric field. Results for the…

Strongly Correlated Electrons · Physics 2011-01-12 Chenglong Jia , Jamal Berakdar

Going down to the limit of ultrathin films holds promise for a new generation of devices such as ferroelectric tunnel junctions or resistive memories. However, these length scales also make the devices sensitive to parasitic effects related…

Various phenomena related to inhomogeneous magnetoelectric interaction are considered. The interrelation between spatial modulation of order parameter and electric polarization, known as flexoelectric effect in liquid crystals, in the case…

Materials Science · Physics 2010-01-05 Alexander P. Pyatakov , Anatoly K. Zvezdin

The Landau theory of 180 degrees domain walls in BaTiO3 type ferroelectric particles is presented. Results of exact description of domain walls in bulk enabled us to formulate variational approach to theory of domain walls in corresponding…

Materials Science · Physics 2021-08-17 Ondrej Hudak , Matej Hudak

It is well known that stacking domains form in moir\'e superlattices due to the competition between the interlayer van der Waals forces and intralayer elastic forces, which can be recognized as polar domains due to the local spontaneous…

Mesoscale and Nanoscale Physics · Physics 2022-08-12 Daniel Bennett , Benjamin Remez

Flexoelectric effect is the coupling between strain, polarization and their gradients, which are prominent at the nanoscale. Although this effect is important to understand nanostructures, such as domain walls in ferroelectrics, its…

Materials Science · Physics 2018-01-17 Yu-Jia Wang , Jiangyu Li , Yin-Lian Zhu , Xiu-Liang Ma

The elastic interaction between kinks (and antikinks) within domain walls plays a pivotal role in shaping the domain structure, and their dynamics. In bulk materials, kinks interact as elastic monopoles, dependent on the distance between…

Mesoscale and Nanoscale Physics · Physics 2024-11-04 John J R Scott , Guangming Lu , Brian J. Rodriguez , Ian MacLaren , Ekhard K. H. Salje , Miryam Arredondo

Metamaterials are artificial periodic structures which represent effective homogeneous medium for electromagnetic fields. Here I show that there exists an important class of such composite systems, metaferroelectrics. They are properly…

Other Condensed Matter · Physics 2008-06-09 Lasha Tkeshelashvili

Quantum interference phenomena in the conductivity of mesoscopic ferromagnets are considered, particularly with regard to the effects of geometric phases acquired by electrons propagating through regions of spatially varying magnetization…

Mesoscale and Nanoscale Physics · Physics 2009-10-31 Yuli Lyanda-Geller , I. L. Aleiner , Paul M. Goldbart

Ferroelectrics are attractive candidate materials for environmentally friendly solid state refrigeration free of greenhouse gases. Their thermal response upon variations of external electric fields is largest in the vicinity of their phase…

Materials Science · Physics 2016-05-20 G. G. Guzmán-Verri , P. B. Littlewood

The study and applications of ferroelectric materials in the biomedical and biotechnological fields is a novel and very promising scientific area that spans roughly one decade. However, some groups have already provided experimental proof…

Quantitative Methods · Quantitative Biology 2021-09-02 Alfonso Blázquez-Castro , Angel García-Cabañes , Mercedes Carrascosa

The manipulation of mesoscale domain wall phenomena has emerged as a powerful strategy for designing ferroelectric responses in functional devices, but its full potential has not yet been realized in the field of magnetism. We show that…

Strong coupling between electrical and mechanical phenomena and the presence of switchable polarization have enabled applications of ferroelectric materials for nonvolatile memories (FeRAM), data storage, and ferroelectric lithography.…

This paper provides a brief introduction to the phenomenological aspects of the polarization in ferrroelectric materials, and then an analysis of a few selected topics related to the modelling of ferroelectrics. The description of…

Emerging Technologies · Computer Science 2023-11-08 David Esseni , Francesco Driussi , Daniel Lizzit , Marco Massarotto , Mattia Segatto

Freestanding BaTiO3 nanodots exhibit domain structures characterized by distinct quadrants of ferroelastic 90{\deg} domains in transmission electron microscopy (TEM) observations. These differ significantly from flux-closure domain patterns…

Ferroelectrics are multifunctional smart materials finding applications in sensor technology, micromechanical actuation, digital information storage etc. Their most fundamental property is the ability of polarization switching under applied…

Materials Science · Physics 2022-06-27 Yuri A. Genenko , Sergey Zhukov , Maohua Zhang , Ke Wang , Jurij Koruza

Magnetite has long been investigated across many disciplines due to the interplay between its ferroic order parameters, namely its ferrimagnetism, ferroelasticity and ferroelectricty. Despite this, the experimental difficulty in measuring…

Materials Science · Physics 2023-10-25 S. D. Seddon , A. Cooper , T. Fricke , S. G. Ebbinghaus , M. Walker , T. P. A. Hase , W. J. A. Blackmore , M. Alexe

Despite multiple efforts, there exist many unsolved fundamental problems related with detection and analysis of internal polarization structure and related phase transitions in ferroelectric domain walls. Their solution can be very…

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