Results 171 to 180 of about 695,127 (377)
IV. The triplets of helium [PDF]
Philosophical Transactions of the Royal Society of London. Series A, Containing Papers of a Mathematical or Physical Character, 1929 Heisenberg’s theory of the helium atom, following his famous principle of “resonance,” accounted satisfactorily for the ortho- and para- states. His more detailed treatment of the triplets, besides giving ground for minor criticisms, necessarily had to be derived from Schrödinger’s equation , with a somewhat incongruous electronic “spin” grafted upon ...
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Altermagnetic Band Splitting in 10 nm Epitaxial CrSb Thin Films
Advanced Materials, EarlyView.Thin film altermagnets are attractive for potential spintronic applications. How thin can we make an altermagnet before quantum confinement perturbs the distinctive band structure? This paper uses angle‐resolved photoemission spectroscopy to show that the canonical g‐wave altermagnet, NiAs‐type CrSb, grown by molecular beam epitaxy, preserves its ...
Sandra Santhosh +20 more
wiley +1 more source
Helium resources accumulation regulations and their development prospects in China
Journal of Natural Gas GeoscienceHelium is a globally scarce strategic resource that is relevant to national economies and the development of high-tech industries, and China primarily depends on imported helium for its industrial applications.
Jian Li +11 more
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The exchange of energy between gas atoms and solid . II.—The temperature variation of the accommodation coefficient of helium [PDF]
, 1932 John K. Roberts
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Advanced Materials, EarlyView.Developing robust catalysts for ammonia electrochemical oxidation (AOR) is essential for advancing NH3 utilization technologies. This review summarizes recent progress in catalyst design and mechanistic understanding of AOR. In addition, it systematically investigates strategies to improve AOR performance for various types of catalysts.
Yike Ye +4 more
wiley +1 more source
Deuterium retention in tungsten under the combined influence of displacement damage and helium
Nuclear FusionAccurate predictions of hydrogen isotope/tritium inventory in tungsten (W), used as a plasma-facing material in fusion reactors, can reduce the uncertainty associated with the self-sustaining fuel cycle.
Ting Wang +9 more
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Advanced Materials, EarlyView.In the work reported herein, the catalytic effects of acid sites on electrocatalytic glycerol oxidation reaction are investigated by using a novel catalytic material system that integrates Pt metal sites with acidic Al sites. Abstract The catalytic role and function of acid sites in solid acid catalysts, such as zeolites, are well understood in the ...
Ju Ye Kim +11 more
wiley +1 more source
Solvent‐Free Thermal Defect Engineering in Molecular Frameworks With Volatile Linkers
Advanced Materials, EarlyView.Thermal removal of neutral volatile linkers enables precise and solvent‐free generation of metal vacancies in MOFs. This strategy affords redox‐stable, coordinatively unsaturated FeII sites with tunable spin, ligand coordination, and catalytic behavior. The approach offers a general route to design defect‐functional materials through local coordination
Sonia Martínez‐Giménez +9 more
wiley +1 more source
Challenges of II‐VI and III‐V Blue Quantum Dot Light‐Emitting Diodes
Advanced Materials, EarlyView.Blue‐emitting electroluminescent quantum dot light‐emitting diodes (QD‐LEDs) face critical challenges that limit their practical application, including short operational lifetimes, low color purity, broad spectral linewidths, and unpredictable transient effects like blinking and positive aging.
Shaun Tan +3 more
wiley +1 more source