Rhombohedral BiFeO3 thick films integrated on Si with a giant electric polarization and prominent piezoelectricity
Sign Up to like & getrecommendations! Published in 2020 at "Acta Materialia"
DOI: 10.1016/j.actamat.2020.09.022
Abstract: Abstract Strikingly challenging the widely accepted opinion that a giant spontaneous polarization (Ps) of ~150 μC/cm2 in pure BiFeO3 can only be achieved in strain-induced tetragonal(-like) thin films up to a few hundred nm thick,… read more here.
Keywords: polarization; thick films; bifeo3 thick; bifeo3 ... See more keywords
Improvement of room temperature electric polarization and ferrimagnetic properties of Co1.25Fe1.75O4 ferrite by heat treatment
Sign Up to like & getrecommendations! Published in 2017 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2016.08.014
Abstract: Abstract We report the improvement of electric and magnetic properties of the chemical routed samples of Co 1.25 Fe 1.75 O 4 ferrite. Synchrotron X-ray diffraction pattern confirmed the cubic spinel structure in all samples.… read more here.
Keywords: improvement; heat treatment; temperature; polarization ... See more keywords
Multiple-valued electric polarization in multiferroic GdMn2O5 from first principles
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Magnetism and Magnetic Materials"
DOI: 10.1016/j.jmmm.2020.167373
Abstract: Abstract We reported in this Letter the high-temperature (high-T) lattice stability and low-temperature (low-T) multiferroicity of GdMn2O5 by performing first-principles density functional theory (DFT) calculations. We show that the high-T paramagnetic structure should be denoted… read more here.
Keywords: gdmn2o5; valued electric; multiple valued; first principles ... See more keywords
Electric Polarization Switching on an Atomically Thin Metallic Oxide.
Sign Up to like & getrecommendations! Published in 2020 at "Nano letters"
DOI: 10.1021/acs.nanolett.0c03417
Abstract: Materials with reduced dimensions have been shown to host a wide variety of exotic properties and novel quantum states that often defy textbook wisdom. Polarization switching and metallic screening are well-known examples of mutually exclusive… read more here.
Keywords: polarization switching; polarization; thin metallic; switching atomically ... See more keywords
Surface Vacancy-Induced Switchable Electric Polarization and Enhanced Ferromagnetism in Monolayer Metal Trihalides.
Sign Up to like & getrecommendations! Published in 2018 at "Nano letters"
DOI: 10.1021/acs.nanolett.8b00314
Abstract: Monolayer chromium triiodide (CrI3), as the thinnest ferromagnetic material demonstrated in experiment [ Huang et al. Nature 2017 , 546 , 270 ], opens up new opportunities for the application of two-dimensional (2D) materials in… read more here.
Keywords: ferromagnetism monolayer; metal trihalides; polarization; switchable electric ... See more keywords
Room-Temperature Magnetic Switching of the Electric Polarization in Ferroelectric Nanopillars.
Sign Up to like & getrecommendations! Published in 2018 at "ACS nano"
DOI: 10.1021/acsnano.7b07389
Abstract: Magnetoelectric layers with a strong coupling between ferroelectricity and ferromagnetism offer attractive opportunities for the design of new device architectures such as dual-channel memory and multiresponsive sensors and actuators. However, materials in which a magnetic… read more here.
Keywords: ferroelectric nanopillars; polarization; electric polarization; room temperature ... See more keywords
Multiscale understanding of electric polarization in poly(vinylidene fluoride)-based ferroelectric polymers
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Materials Chemistry C"
DOI: 10.1039/d0tc04310a
Abstract: The electric polarization of ferroelectric polymers with tailored structures was studied using the terahertz time-domain spectroscopy technique combined with impedance analysis. read more here.
Keywords: multiscale understanding; polarization poly; ferroelectric polymers; understanding electric ... See more keywords
Coexistence of electric polarization and magnetic ordering in acceptor doped potassium sodium niobate (KNN) ceramics
Sign Up to like & getrecommendations! Published in 2018 at "Materials Research Express"
DOI: 10.1088/2053-1591/aacf28
Abstract: Lead-free single-phase multiferroic K0.5Na0.5Nb1−xFexO3 (x = 0.02, 0.03, 0.04, 0.05) ceramics have been synthesized by solid-state reaction method to explore the simultaneous existence of ferroelectric and magnetic order. X-ray diffraction analysis of the samples confirms… read more here.
Keywords: coexistence electric; knn ceramics; knn; magnetic ordering ... See more keywords
Out-of-plane electric polarization in double-fan magnetic phase of Y-type hexaferrite
Sign Up to like & getrecommendations! Published in 2020 at "Physical Review B"
DOI: 10.1103/physrevb.101.100403
Abstract: It has been revealed that a Y-type hexaferrite ${\mathrm{BaSrCo}}_{2}{\mathrm{Fe}}_{11.1}{\mathrm{Al}}_{0.9}{\mathrm{O}}_{22}$ hosts not only an in-plane $({P}_{ab})$ but also an out-of-plane $({P}_{c})$ component of magnetically induced electric polarization in the double-fan magnetic phase. With an increasing in-plane… read more here.
Keywords: type hexaferrite; phase; double fan; electric polarization ... See more keywords
Antiferromagnetic-to-ferrimagnetic phase transition with large electric-polarization change in a frustrated polar magnet CaBaCo4O7
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.184412
Abstract: We investigate phase transitions of a geometrically frustrated polar magnet ${\mathrm{CaBaCo}}_{4}{\mathrm{O}}_{7}$, which exhibits the largest magnetoelectric (ME) effect in multiferroic compounds reported so far. Measurements of magnetization, sound velocity, and neutron diffraction of single crystals… read more here.
Keywords: polar magnet; large electric; frustrated polar; electric polarization ... See more keywords
Ginzburg-Landau action and polarization current in an excitonic insulator model of electronic ferroelectricity
Sign Up to like & getrecommendations! Published in 2023 at "Physical Review B"
DOI: 10.1103/physrevb.107.155142
Abstract: In comparison to transport of spin polarization in ferromagnets, transport of electric polarization in ferroelectrics remains less explored. Taking an excitonic insulator model of electronic ferroelectricity as a prototypical example, we theoretically investigate the low-energy… read more here.
Keywords: polarization; excitonic insulator; insulator model; electric polarization ... See more keywords