Results 121 to 130 of about 17,314 (301)

Nanofiber electrospinning in samarium complex-doped PMMA

, 2017
Herein, an electrospinning process of samarium complex-doped PMMAs was carried out to fabricate ultrafine fibers with a uniform diameter of about 230 nm.
Baojie Chen, Edwin Yue Bun Pun, Yue Li, Hai Lin   +3 more
core   +1 more source

Turning Nd‐Fe‐B Swarf Into High‐Value Bulk Feedstocks via Sustainable Hydrogen Plasma: From Rare‐Earth Oxides to Metals and Hydrides

Advanced Materials, EarlyView.
Oxidized Nd‐Fe‐B magnet swarf is transformed into valuable bulk feedstock through a single‐step hydrogen plasma process. The reaction converts complex rare‐earth‐containing waste into separated metallic, oxide, and hydride fractions without acid leaching.
Naritai Chimed, Oliver Diehl, Ömer K. Büyükuslu, J. Manoj Prabhakar, Dennis Klapproth, Patricia Jovičević‐Klug, Jürgen Gassmann, Dierk Raabe, Tim M. Schwarz, Matic Jovičević‐Klug   +9 more
wiley   +1 more source

Chiral Phonon–Driven Ultrafast Spin Currents in a Non‐Magnetic Ferroelectric

Advanced Materials, EarlyView.
Broadband terahertz emission spectroscopy shows signatures of ultrafast spin‐current generation in non‐magnetic ferroelectric β$\beta$’‐In2Se3${\rm In}_2{\rm Se}_3$. Reversal of the emitted field upon sample inversion and substitution of Pt with W indicates spin‐Hall‐mediated charge conversion, while polarization‐resolved measurements reveal ...
Thomas B. Gill, Ahmet Yagmur, Matthew Rogers, Luke Benson, Nathan Fox, Ben Muggleton, Zabeada Aslam, Conor McCluskey, Phoenix Robinson, Oscar Cespedes, Bryan Hickey, Timothy Moorsom, Marty Gregg, Edmund H. Linfield, Sukhdeep Dhillon, Satoshi Sasaki, Joshua R. Freeman   +16 more
wiley   +1 more source

A Simple Descriptor for Solid‐State Ionic Conductors Across Chemistries

Advanced Materials, EarlyView.
Researchers develop a simple and transferable descriptor, distance contraction, for solid‐state ion migration across Li‐, Na‐, K‐, and Mg‐ion conductors and diverse anion chemistries. By capturing the maximum local contraction experienced by the migrating ion, the descriptor enables rapid materials screening and unifies diverse ion‐transport mechanisms.
Ramanuja Srinivasan Saravanan, Charles E. Schwarz, Felix Adams, Kiyan Amirian, Yifei Mo   +4 more
wiley   +1 more source

Piezoresistivity Enhancement by Graphite Flake Alignment in Thin Composite Films for Dielectric Elastomer Switches

Advanced Robotics Research, EarlyView.
This article presents dielectric elastomer switch (DES) materials, based on composite thin films. Alignment of graphite flakes due to their physical confinement within the thin films lead to much stronger piezoresistive responses than bulk composites, while their durability exceeds that of conventional liquid‐based DES materials.
Lingyu Liu, Thomas Kister, Bart‐Jan Niebuur, Tobias Kraus   +3 more
wiley   +1 more source

Samarium(II)−Mediated Linker Cleavage−Cyclization in Fluorous Synthesis:  Reactions of Samarium Enolates

, 2016
SmI2 has been used to cleave a sulfur linker and trigger cyclizations in strategies for the traceless fluorous synthesis of N-heterocycles.
Karen M. James (2448409), Nigel Willetts (2448406), David J. Procter (1298652)   +2 more
core   +1 more source

Helix Alignment, Chevrons, and Edge Dislocations in Twist‐Bend Ferroelectric Nematics

Advanced Science, EarlyView.
The recently discovered twist‐bend ferroelectric nematic (NTBF) is the new member of the multiferroic family, representing a fluid with an oblique helicoidal (heliconical) periodic structure of spontaneous electric polarization. The work presents a thorough exploration of the material properties of this phase, how the periodic modulation of ...
Bijaya Basnet, Priyanka Kumari, Sathyanarayana Paladugu, Damian Pociecha, Jakub Karcz, Przemysław Kula, Nataša Vaupotič, Ewa Górecka, Oleg D Lavrentovich   +8 more
wiley   +1 more source

Pemisahan Unsur Samarium dan Yttrium dari Mineral Tanah Jarang dengan Teknik Membran Cair Berpendukung (Supported Liquid Membrane)

Jurnal Rekayasa Kimia & Lingkungan, 2009
he increasing use of rare earth elements in high technology industries needs to be supported by developmental work for the separation of elements. The research objective is fiercely attracting and challenging considering the similarity of bath physical ...
Amri Amin
doaj   +2 more sources

Photoluminescence Properties of X-Ray Generated Divalent Sm in Mechanochemically Prepared Nanocrystalline CaF₂:Sm³⁺

Inorganics
In this study, the mechanochemical preparation of nanocrystalline CaF2:Sm3+ by ball milling calcium acetate hydrate, samarium (III) acetate hydrate, and ammonium fluoride is reported. The photoluminescence of the as-prepared CaF2:Sm3+ shows predominantly
Z. Siti Rozaila, Nicolas Riesen, Hans Riesen   +2 more
doaj   +1 more source

Thermodynamics of Concomitant Charge‐Transfer, Antiferromagnetic, and Isostructural Phase Transitions in Barocaloric ACu3Fe4O12 Quadruple Perovskites

Advanced Science, EarlyView.
A copper‐iron charge transfer instability drives concomitant electronic, magnetic, and isostructural phase transitions in ACu3Fe4O12${\rm ACu}_3{\rm Fe}_4{\rm O}_{12}$, with an inverse barocaloric effect. A minimal Landau theory ties these thermodynamic signatures together, revealing a pressure‐independent transition entropy with comparable charge and ...
Jefferson Delgado‐Quesada, Gian Giacomo Guzmán‐Verri   +1 more
wiley   +1 more source