Results 71 to 80 of about 2,377 (184)

Design of magnetic spirals in layered perovskites: extending the stability range far beyond room temperature [PDF]

open access: yes, 2018
In insulating materials with ordered magnetic spiral phases, ferroelectricity can emerge due to the breaking of inversion symmetry. This property is of both fundamental and practical interest, in particular with a view to exploiting it in low-power ...
Canévet, Emmanuel   +6 more
core   +2 more sources

Oxidative Dehydrogenation of Ethylbenzene over Iron‐Based Catalysts: Challenges, Prospects, and Future Trends

open access: yesChemCatChem, Volume 17, Issue 15, August 7, 2025.
This review discusses different aspects of the oxidative dehydrogenation reaction of ethylbenzene to styrene over iron‐based oxides, emphasizing the properties of the catalysts and the participation of active sites, as well as the deactivation and regeneration processes using soft oxidants.
Johnatan de Oliveira Soares   +2 more
wiley   +1 more source

Synthesis and Characterization of Novel V‐Type Hexaferrite BaFe9−xSnxO15

open access: yesZeitschrift für anorganische und allgemeine Chemie, Volume 651, Issue 12, August 1, 2025.
GA: The crystal structure of a new quaternary V‐type hexaferrite with the composition BaFe9−xSnxO15, found in the system Ba–Fe–Sn–O, is reported. A novel V‐type hexaferrite with the composition BaFe9−xSnxO15 with 1.57 ≤ x ≤ 1.84 (from wavelength dispersive X‐ray spectroscopy [WDX] data) is synthesized by reacting BaCO3, Fe2O3, SnO2, and Na2CO3 as flux ...
Yanina Mariella Dreer   +2 more
wiley   +1 more source

Magnetic Actuation Under DC and AC Fields of Thermoplastic Polyurethane With Strontium Hexaferrite

open access: yesAdvanced Materials Technologies, Volume 10, Issue 13, July 8, 2025.
Magnetic thermoplastic polyurethane composites with strontium hexaferrite (SrFe12O19) are produced through a solvent‐free melt‐mixing technique. These composites display a magnetomechanical actuation mechanism, being able to deform (bend and twist) through DC and AC magnetic fields, showcasing their potential as a promising material for the fabrication
Mariana Martins da Silva   +3 more
wiley   +1 more source

Magnetic properties of diluted hexaferrites

open access: yesPhysical Review B
11 pages, 12 figures, final version as ...
Logan Sowadski   +4 more
openaire   +2 more sources

In Situ Polymerization of Barium Hexaferrite Ferrofluids for Poly(Ethylene) Succinate Magnetic Nanoparticle Composites

open access: yesJournal of Applied Polymer Science, Volume 142, Issue 23, June 15, 2025.
ABSTRACT The integration of hard magnetic barium hexaferrite (BHF) nanoplatelets into a dense poly(ethylene succinate) (PES) polyester matrix produces an exciting biodegradable thermoplastic magnetic polymer nanocomposite. In this work, scandium‐substituted BHF nanoplatelets are grown and stabilized in hexadecyltrimethylammonium bromide (CTAB ...
Y. Ahmed, B. D. Ward, J. Steer, D. Zabek
wiley   +1 more source

Triple‐Stimuli Responsive Soft Robots with Photo‐Programmable Ferriferous Oxide Particle Patterns

open access: yesAdvanced Science, Volume 12, Issue 18, May 15, 2025.
The in situ generation of Fe3O4 nanoparticles in polymer substrate is realized by combining photo‐reduction of Fe3+ to Fe2+ and hydrolytic reaction of the two ions. By spatiotemporal control of UV light irradiation, the distribution of Fe3O4 nanoparticle can be well controlled, which enables the composite with magnetic field, NIR light, and moisture ...
Siwei Hu   +8 more
wiley   +1 more source

Magnetic characterization of La3+ and Li1+ co-substituted M-type strontium hexaferrite

open access: yesAIP Advances, 2023
Effects of stoichiometric La3+–Li1+ co-substitution on magnetic properties of M-type strontium hexaferrites Sr1-xLaxFe12-x/2Lix/2O19 (x = 0, 0.25, 0.4, 0.5, 0.6) have been studied by using crystallographic and magnetic measurements. Samples were prepared
Chul Sung Kim, Sunghyun Yoon
doaj   +1 more source

Circulator based on spoof surface plasmon polaritons

open access: yes, 2016
Circulators based on spoof surface plasmon polaritons are designed and analyzed. In the letter, we use blade structure to realize the propagation of SSPPs wave and a matching transition is used to feed energy from coplanar waveguide to the SSPPs. And the
Li, Yongfeng   +3 more
core   +1 more source

Electrocatalysts for Hydrogen Production – Catalyst Design Strategies Based on Crystal Structures of Multimetal Oxides

open access: yesThe Chemical Record, Volume 25, Issue 5, May 2025.
Hydrogen production via water electrolysis is considered a key technology for realizing a sustainable circular carbon society. To improve the efficiency of the water electrolysis technology, enhancing the activity of electrocatalysts is a critical challenge.
Yuuki Sugawara, Takeo Yamaguchi
wiley   +1 more source

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