Results 51 to 60 of about 17,445 (204)
Литосфера, 2020 Research subject. In this research, we carried out Sm-Nd- и Rb-Sr-dating of pyrochlore carbonatite from the Vishnevogorsky niobium deposit, Ilmeno-Vishnevogorsky Alkaline Complex, Southern Urals.
I. L. Nedosekova +5 more
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Small Methods, EarlyView.A/B‐site co‐doping combined with templated grain growth enables synergistic defect and domain engineering in textured PIN–PMN–PT ceramics. The approach simultaneously enhances piezoelectric response and mechanical quality factor, achieving a balanced soft–hard characteristic.
Minwoo Kim +13 more
wiley +1 more source
Pr$_2$Ir$_2$O$_7$: when Luttinger semimetal meets Melko-Hertog-Gingras spin ice state
, 2017 We study the band structure topology and engineering from the interplay between local moments and itinerant electrons in the context of pyrochlore iridates. For the metallic iridate Pr$_2$Ir$_2$O$_7$, the Ir $5d$ conduction electrons interact with the Pr
Chen, Gang, Yao, Xu Ping
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Oxygen Evolution Reaction Catalysts for Acidic‐Media CO2 Electrolyzers
Advanced Materials, Volume 38, Issue 19, 1 April 2026.Acidic‐media CO2 electroreduction (CO2R) could decarbonize chemical production, despite relying on rare‐earth elements for anodic oxygen evolution reaction (OER). Transferring the learnings from mature sister technologies (water electrolysis) could accelerate technological development.
Mingcheng Huang, Adnan Ozden
wiley +1 more source
Superconductivity in Geometrically Frustrated Pyrochlore RbOs2O6
, 2004 We report the basic thermodynamic properties of the new geometrically frustrated beta-pyrochlore bulk superconductor RbOs2O6 with a critical temperature Tc = 6.4 K. Specific heat measurements are performed in magnetic fields up to 12 T.
A. P. Ramirez +7 more
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Stuffed rare earth pyrochlore solid solutions [PDF]
Journal of Solid State Chemistry, 2006 Synthesis and crystal structures are described for the compounds Ln2(Ti2-xLnx)O7-x/2, where Ln = Tb, Dy, Ho, Er, Tm, Yb, Lu, and x ranges from 0 to 0.67. Rietveld refinements on X-ray powder diffraction data indicate that in Tb and Dy titanate pyrochlores, extra Ln3+ cations mix mainly on the Ti4+ site with little disorder on the original Ln3+ site ...
Lau, G. C. +4 more
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Inorganics, 2022 The effect of Fe and Mg-codoping on the crystal structure, optical and dielectric properties of bismuth tantalate-based pyrochlores has been studied. Samples of Bi2MgxFe1−xTa2O9.5−Δ (x ≤ 0.7) are characterized by a porous dendrite-like microstructure. Fe,
N. A. Zhuk +10 more
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Electronic and Structural Determinants of Activity and Stability in Noble Metal OER Catalysis
ChemCatChem, Volume 18, Issue 7, 14 April 2026.Activity and stability in noble metal oxygen evolution reaction (OER) catalysts arise from coupled electronic and structural effects at the catalyst surface. Electronic engineering, crystallographic control, lattice modulation, and surface engineering tune the d‐band structure, oxidation state, strain, and coordination environment of noble metal based ...
Gordon A. Ochsner +3 more
wiley +1 more source
Progress in Photovoltaics: Research and Applications, Volume 34, Issue 4, Page 453-464, April 2026.High performance of Gd2Ru2O7‐based natural dye‐sensitized solar cell using three different dyes (Anacardium, B. nitida, and Lannea kerstingii barks) has been developed. Enhanced energy conversion efficiency values were obtained compared to classical TiO2 P25‐based DSSC. ABSTRACT Natural dye‐sensitized solar cells (DSSC‐N), inspired by the principles of
A. F. Kraidy +7 more
wiley +1 more source
Depleted pyrochlore antiferromagnets
Journal of Physics: Conference Series, 2009 I consider the class of "depleted pyrochlore" lattices of corner-sharing triangles, made by removing spins from a pyrochlore lattice such that every tetrahedron loses exactly one. Previously known examples are the "hyperkagome" and "kagome staircase".
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