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Domain wall propagation has been measured in continuous, weakly disordered, quasi-two-dimensional, Ising-like magnetic layers that are subject to spatially periodic domain wall pinning potentials. The potentials are generated…

Mesoscale and Nanoscale Physics · Physics 2013-04-30 P. J. Metaxas , P. -J. Zermatten , R. L. Novak , S. Rohart , J. -P. Jamet , R. Weil , J. Ferré , A. Mougin , R. L. Stamps , G. Gaudin , V. Baltz , B. Rodmacq

The control of domain walls or spin textures is crucial for spintronic applications of antiferromagnets. Despite many efforts, it has been challenging to directly visualize antiferromagnetic domains or domain walls with nanoscale…

Materials Science · Physics 2020-03-06 Paul M. Sass , Wenbo Ge , Jiaqiang Yan , D. Obeysekera , J. J Yang , Weida Wu

Domain pattern transfer from ferroelectric to ferromagnetic materials is a critical step for the electric field control of magnetism and has the potential to provide new schemes for low-power data storage and computing devices. Here we…

Materials Science · Physics 2023-07-06 Robbie G. Hunt , Kévin J. A. Franke , Philippa M. Shepley , Thomas A. Moore

Ferroelectric domain wall motion is fundamental to the switching properties of ferroelectric devices and is influenced by a wide range of factors including spatial disorder within the material and thermal noise. We build a…

Materials Science · Physics 2022-08-08 Nora Bauer , Sabine M. Neumayer , Petro Maksymovych , Maxim O. Lavrentovich

The symmetry of boundaries between ferroelectric, ferroelastic and antiphase domains is a key element for a theoretical understanding of their properties. Here, we derive this symmetry from their organic relation to the symmetry of the…

Materials Science · Physics 2014-04-21 Pierre Tolédano , Mael Guennou , Jens Kreisel

In purely c-axis oriented PbZr$_{0.2}$Ti$_{0.8}$O$_3$ ferroelectric thin films, a lateral piezoresponse force microscopy signal is observed at the position of 180{\deg}domain walls, where the out-of-plane oriented polarization is reversed.…

Materials Science · Physics 2015-05-19 J. Guyonnet , H. Bea , P. Paruch

Improper ferroelectrics are described by two order parameters: a primary one, driving a transition to long-range distortive, magnetic or otherwise non-electric order, and the electric polarization, which is induced by the primary order…

Conductive ferroelectric domain walls (DWs) represent a promising topical system for the development of nanoelectronic components and device sensors to be operational at elevated temperatures. DWs show very different properties as compared…

Difference in density of states for the spin's majority and minority bands in a ferromagnet changes the electrostatic potential along the domains, introducing the discontinuities of the potential at domain boundaries. The value of…

Materials Science · Physics 2009-11-07 M. Dzero , L. P. Gor'kov , A. K. Zvezdin , K. A. Zvezdin

Two-dimensional topological superconductor (TSC) represents an exotic quantum material with quasiparticle excitation manifesting in dispersive Majorana mode (DMM) at the boundaries. A domain-wall DMM can arise at the boundary between two…

Superconductivity · Physics 2024-03-26 Xiaoming Zhang , Pei Zhao , Feng Liu

Analytical description of domain structure morphology and phase diagrams of ferroelectric nanoparticles is developed in the framework of Landau Ginzburg Devonshire approach. To model realistic conditions of incomplete screening of…

Phase-field simulations of domain walls between antiparallel ferroelectric domains in BaTiO3 - SrTiO3 crystalline superlattices suggest that a paraelectric layer with a thickness comparable to the thickness of the domain wall itself can act…

Mesoscale and Nanoscale Physics · Physics 2024-10-29 Vilgelmina Stepkova , Jiri Hlinka

Mechanically bent nickel nanowires show clear features in their room temperature magnetoresistance when a domain wall is pinned at the location of the bend. By varying the direction of an applied magnetic field, the wire can be prepared…

Materials Science · Physics 2007-05-23 D. M. Silevitch , M. Tanase , C. L. Chien , D. H. Reich

We propose a self-consistent theoretical approach capable to describe the peculiarities of the anisotropic nanodomain formation induced by a charged AFM probe on non-polar cuts of ferroelectrics. The proposed semi-phenomenological approach…

We report on reversible electric-field-driven magnetic domain wall motion in a Cu/Ni multilayer on a ferroelectric BaTiO$_3$ substrate. In our heterostructure, strain-coupling to ferroelastic domains with in-plane and perpendicular…

Ferroelectric domain variants that are energetically equivalent are expected to remain preserved during polarization reversal under a symmetry-preserving electric field. However, recent experiments on relaxor-ferroelectric crystals have…

Materials Science · Physics 2026-05-20 Yuan-Jie Sun , Bo Wang , Long-Qing Chen

The ground-state structural and electronic properties of ferroelectric BiFeO$_3$ are calculated using density functional theory within the local spin-density approximation and the LSDA+U method. The crystal structure is computed to be…

Materials Science · Physics 2007-05-23 J. B. Neaton , C. Ederer , U. V. Waghmare , N. A. Spaldin , K. M. Rabe

We explore the emergence of spin-polarised flat-bands at head-to-head domain walls in a recently predicted class of antiferromagnetic topological insulators hosting planar magnetisation. We show, in the framework of quantum well physics,…

Mesoscale and Nanoscale Physics · Physics 2021-09-01 N. B. Devlin , T. Ferrus , C. H. W. Barnes

The past several years has witnessed a surge of interest in organometallic trihalide perovskites, which are at the heart of the new generation of solid-state solar cells. Here, we calculated the static conductivity of charged domain walls…

Materials Science · Physics 2015-03-12 Sergey N. Rashkeev , Fedwa El-Mellouhi , Sabre Kais , Fahhad H. Alharbi

Recent ESR data shows rotation of the antiferromagnetic (AF) easy axis in lightly doped layered cuprates upon lowering the temperature. We account for the ESR data and show that it has significant implications on spin and charge ordering…

Superconductivity · Physics 2009-11-10 Baruch Horovitz