Results 71 to 80 of about 6,995 (287)
Colouring mechanisms in natural spinels
, 2014 Natural minerals belonging to the spinel group are actively sought as gemstones because of their intense multi-colour, high mechanical resistance and high thermal and chemical stability.
D'IPPOLITO, VERONICA +2 more
core
A Combined DFT/Machine Learning Framework for Materials Discovery: Application to Spinels and Assessment of Search Completeness and Efficiency [PDF]
, 2020 It is challenging to evaluate machine learning approaches developed for accelerating materials search and discovery in a realistic way. Machine learning approaches to materials stability prediction are typically assessed by their ability to reproduce ...
Joshua A., Schiller, Elif, Ertekin
core +1 more source
Advanced Science, EarlyView.Ti substitution stabilizes Co‐free high‐Ni layered oxides through both structural and electronic effects. TiO6 octahedra act as compensatory structural units that help interrupt cooperative Jahn–Teller distortion and suppress detrimental phase transitions, while the electron‐withdrawing inductive effect of Ti stabilizes the oxygen lattice. As a result,
Bixian Ying +19 more
wiley +1 more source
Advanced Science, EarlyView.As CMOS technology approaches fundamental energy limits, new paradigms for low‐power information processing are required. Magnetic systems are attractive for their spin transport, yet current‐induced magnetization control is energy inefficient. Multiferroic heterostructures enable energy‐efficient electric field manipulation of magnetism.
Donghyeon Lee +3 more
wiley +1 more source
Yankuang ceshi, 2015 Stratiform chromite deposits in China have long been considered to form by fractional crystallization of mafic magma. However, some researchers recently proposed that some chromite deposits are also hosted in ophiolite.
LI Li-xing +3 more
doaj +1 more source
Advanced Science, EarlyView.A nuclear‐pore‐inspired nested dual‐loop architecture redistributes electromagnetic energy through coupled transport, confinement, and dissipation pathways. Integrated with Co/Fe3O4 dual‐magnetic composites and topology optimization, the 11‐mm‐thick absorber delivers continuous 2–40 GHz attenuation, raises finite‐band structural utilization to 82%, and
Shaokang Liu +6 more
wiley +1 more source
ZrCo3B2 and HfCo3B2 Electrodes Go on Stage for Oxygen Evolution Reaction
Advanced Science, EarlyView.The intermetallic compounds ZrCo3B2 and HfCo3B2 with distinctive chemical bonding features are excellent OER precursors, restructuring into OER‐active electrocatalysts delivering significantly high OER activities compared to the elemental Co, which is obvious from their lower onset potentials and increased obtained current densities.
Fatma Aras +4 more
wiley +1 more source
Advanced Science, EarlyView.This work illustrates that magnetic Fe substitution enables systematic modulation of physical properties of the putative unconventional superconductor Rh17S15. Iron doping uncovers delicate competition between weak ferromagnetism, spin‐glass states, heavy‐fermion signatures, and superconductivity.
Yalei Huang +18 more
wiley +1 more source
Boletín de la Sociedad Española de Cerámica y Vidrio, 2004 In this work some aspects related to the synthesis of nickel aluminate as a ceramic material by the sol–gel processing, are studied. The solids obtained are analyzed by atomic absorption and x ray flourescence in order to determine their chemical ...
Valencia, J. S., Almanza, A.
doaj
Advanced Science, EarlyView.In GdMn2O5, sublattice‐resolved EXAFS and diffraction analysis reveal pronounced spin‐phonon coupling and an unexpected opposing pressure response: the Mn‐driven Néel temperature slightly decreases while the Gd‐sublattice ordering temperature rises under pressures up to 0.86 GPa.
Romualdo S. Silva Jr. +9 more
wiley +1 more source