Results 81 to 90 of about 22,234 (272)

Evaluation of the Structural Phase Transition in Multiferroic (Bi1−x Prx)(Fe0.95 Mn0.05)O3 Thin Films by A Multi-Technique Approach Including Picosecond Laser Ultrasonics

open access: yesApplied Sciences, 2019
Picosecond laser ultrasonics is an experimental technique for the generation and detection of ultrashort acoustic pulses using ultrafast lasers. In transparent media, it is often referred to as time-domain Brillouin scattering (TDBS).
Samuel Raetz   +14 more
doaj   +1 more source

Multiferroic materials and magnetoelectric physics: symmetry, entanglement, excitation, and topology [PDF]

open access: yesAdvances in Physics 64, 519-626 (2015), 2015
Multiferroics are those materials with more than one ferroic order, and magnetoelectricity refers to the mutual coupling between magnetism and electricity. The discipline of multiferroicity has never been so highly active as that in the first decade of the twenty-first century, and it has become one of the hottest disciplines of condensed matter ...
arxiv   +1 more source

High Performance Room Temperature Multiferroic Properties of w‐MnSe Altermagnet

open access: yesAdvanced Functional Materials, EarlyView.
Using first‐principles calculations, for the first time the Altermagneto‐Ferroelectric Coupling Effect (AFCE) is proposed, which enables control of both electric polarization and spin splitting in the band structure due to polyhedral rotations. This uncovers robust multiferroicity in wurtzite MnSe at room temperature, offering an exciting route for ...
Djamel Bezzerga, Imran Khan, Jisang Hong
wiley   +1 more source

Coupled Spin-Phonon Excitations in Helical Multiferroics

open access: yes, 2010
Both the Dzyaloshiskii-Moriya interaction and the exchange-striction are shown to affect dynamically the magnetoelectric excitations in the perovskite multiferroic RMnO3.
Capogna   +15 more
core   +1 more source

Multiferroic kinks and spin-flop transition in Ni2InSbO6 from first principles

open access: yesnpj Spintronics
Magnetoelectric multiferroics are key materials for next-generation spintronic devices due to their entangled magnetic and ferroelectric properties.
Ryota Ono   +2 more
doaj   +1 more source

Nanocomposites based on opal matrices with crystalline multiferroics of ferrothorite type [PDF]

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2012
Optical, magnetic and dielectric properties, composition and structure of nanocomposites samples based on lattice packing SiO2 nanospheres (opal matrices) with included clusters of crystalline phase of multiferroics of ferrothorite type in interspherical
Samoylovich M. I.   +7 more
doaj  

Order Parameters and Phase Diagrams of Multiferroics [PDF]

open access: yes, 2008
The symmetry properties, order parameters, and magnetoelectric phase diagrams of multiferroics are discussed. After brief reviews of Ni$_3$V$_2$O$_8$, TbMnO$_3$, and RbFe(MoO$_4$)$_2$, we present a detailed analysis of RMn$_2$O$_5$ (with R=Y, Ho, Dy, Er, Tb, Tm).
arxiv   +1 more source

Manipulating Ferroelectric Topological Polar Structures with Twisted Light

open access: yesAdvanced Materials, EarlyView.
We demonstrate dynamic control of ferroelectric order in quasi‐2D CsBiNb2O7 using twisted ultraviolet light carrying orbital angular momentum. Our approach harnesses non‐resonant multiphoton absorption and induced strain to modulate topological of ferroelectric polarization textures.
Nimish P. Nazirkar   +10 more
wiley   +1 more source

Universal emergence of spatially-modulated structures induced by flexo-antiferrodistortive coupling in multiferroics

open access: yes, 2013
We proved the existence of a universal flexo-antiferrodistortive coupling as a necessary complement to the well-known flexoelectric coupling. The coupling is universal for all antiferrodistortive systems and can lead to the formation of incommensurate ...
Borisevich, Albina   +8 more
core   +1 more source

Crystal chemistry search of multiferroics with the stereochemically active lone pair [PDF]

open access: yes, 2011
On the basis of our previous studies of magnetoelectric ordering of BiFeO3, TbMnO3, TbMn2O5 and BiMn2O5 we formulate the crystal chemistry criteria for the search of multiferroics and reveal potential multiferroics Pb2Cu(OH)4Cl2, Pb5Cr3F19, Mn(SeO3){\dot}H2O and BiPbSr2MnO6 each containing the ion with a lone pair.
arxiv   +1 more source

Home - About - Disclaimer - Privacy