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Concept

Multiferroïsme

Publications associées (31)

Nanoscale Defect Engineering and the Resulting Effects on Domain Wall Dynamics in Ferroelectric Thin Films

Nava Setter, Dragan Damjanovic, Silviu Cosmin Sandu, Ludwig Feigl

Defect engineering is one of the cornerstones of the modern electronics industry. Almost all electronic devices include materials that have been doped by ion bombardment. For materials where crystallinity is essential, such as ferroelectrics, defect type a ...

Wiley-Blackwell2017

Electron Spin Dynamics of Two-Dimensional Layered Materials

László Forró, Bálint Náfrádi

The growing library of two-dimensional layered materials is providing researchers with a wealth of opportunity to explore and tune physical phenomena at the nanoscale. Here, we review the experimental and theoretical state-of-art concerning the electron sp ...

Wiley-V C H Verlag Gmbh2017

Building Composite Iron-Manganese Oxide Flowerlike Nanostructures: A Detailed Magnetic Study

Davide Deiana

Here we show that it is possible to produce different magnetic core multiple shell heterostructures from monodisperse Fe3O4 spherical magnetic seeds by finely controlling the amount of a manganese precursor and using, in a smart and simple way, a cation-ex ...

Amer Chemical Soc2017

Thick domain walls in non-magnetic ferroics

Alexander Tagantsev, Petr Yudin, Konstantin Shapovalov

Recent developments in the physics of non-magnetic ferroics identified possible functionality of domain walls in these materials, which specifies the current interest to the internal structure of the walls. In this context, the wall thickness itself can be ...

Taylor & Francis Ltd2016

Neel-like domain walls in ferroelectric Pb(Zr,Ti)O-3 single crystals

Nava Setter, Tomas Sluka

In contrast to the flexible rotation of magnetization direction in ferromagnets, the spontaneous polarization in ferroelectric materials is highly confined along the symmetry-allowed directions. Accordingly, chirality at ferroelectric domain walls was trea ...

Nature Publishing Group2016

Identification of defect distribution at ferroelectric domain walls from evolution of nonlinear dielectric response during the aging process

Tomas Sluka

The motion of ferroelectric domain walls greatly contributes to the macroscopic dielectric and piezoelectric response of ferroelectric materials. The domain-wall motion through the ferroelectric material is, however, hindered by pinning on crystal defects, ...

Amer Physical Soc2016

Frustration-induced one-dimensionality in the isosceles triangular antiferromagnetic lattice of delta-(EDT-TTF-CONMe2)(2)AsF6

László Forró, Bálint Náfrádi

The 1/4-filled organic compound, delta-(EDT-TTF-CONMe2)(2)AsF6 is a frustrated two-dimensional triangular magnetic system as shown by high-frequency (111.2 and 222.4 GHz) electron spin resonance (ESR) and structural data in the literature. The material gra ...

Amer Physical Soc2016

Spin and orbital disordering by hole doping in Pr1-xCaxVO3

Philip Pattison

High-resolution powder x-ray diffraction and single-crystal neutron diffraction were used to investigate the crystal structure and magnetic ordering of the compound Pr1-xCax VO3 (0

Amer Physical Soc2016

Spin wave excitations in the tetragonal double perovskite Sr2CuWO6

Sami Juhani Vasala

Sr2CuWO6 is a double perovskite proposed to be at the border between two- and three-dimensional magnetism, with a square lattice of S = 1/2 Cu2+ ions. We have used inelastic neutron scattering to investigate the spin wave excitations of the system, to find ...

Amer Physical Soc2016

Magnetic structure and magnon dynamics of the quasi-two-dimensional antiferromagnet FePS3

Henrik Moodysson Rønnow, Diane Virginie Marie Lançon

Neutron scattering from single crystals has been used to determine the magnetic structure and magnon dynamics of FePS3, an S = 2 Ising-like quasi-two-dimensional antiferromagnet with a honeycomb lattice. The magnetic structure has been confirmed to have a ...

Amer Physical Soc2016

Piezoelectric response of BiFeO3 ceramics at elevated temperatures

Dragan Damjanovic

The high Curie temperature (T-C similar to 825 degrees C) of BiFeO3 has made this material potentially attractive for the development of high-T-C piezoelectric ceramics. Despite significant advances in the search of new BiFeO3-based compositions, the piezo ...

AIP American Institute of Physics2016