Results 181 to 190 of about 66,343 (277)

Anomalous Paramagnetic Meissner-like AC Response in EuRbFe<sub>4</sub>As<sub>4</sub> Superconductor. [PDF]

open access: yesMaterials (Basel)
Crisan A   +6 more
europepmc   +1 more source

Do We Really Know Why Carbon Nanotubes Grow?

open access: yesSmall, EarlyView.
The CNT growth mechanism is still debated. We propose a heterogeneous (2D) classical nucleation framework comparing pathways for graphenic patches, caps, and full CNTs. Despite its simplicity, it rationalizes key trends, including the correlation between catalyst particle size and CNT diameter.
Nicola Verziaggi   +6 more
wiley   +1 more source

Ferromagnetic Cobalt Oxide With Structural Distortion and Oxidation State Changes for Hydrogen Sulfide Gas Detection

open access: yesSmall, EarlyView.
High H2S gas sensitivity was improved by electrochemically engineering Co3O4/CoO heterostructures with oxygen vacancies and aligning nanosized particles via magnetic‐field‐assisted deposition. This alignment enhanced gas diffusion and electron transport, reducing base resistance. The resulting sensor exhibited high selectivity and a strong response (Rg/
Shin Joon Kang   +5 more
wiley   +1 more source

Bandwidth-tuned Mott transition and superconductivity in moiré WSe<sub>2</sub>. [PDF]

open access: yesNature
Xia Y   +8 more
europepmc   +1 more source

Scalable Room‐Temperature Terahertz Graphene Cameras

open access: yesSmall Methods, EarlyView.
ABSTRACT Terahertz (THz) imaging has emerged as a powerful tool for non‐destructive, label‐free analysis across several scientific disciplines, ranging from materials science to biomedical research. By capturing the spatial‐dependent information in a broad range of frequencies, this technique enables the identification of chemical composition ...
Lili Shi   +2 more
wiley   +1 more source

XAHRM‐Lab First Results and πXRF First View of UFe4Al8 and UFe10Si2

open access: yesX-Ray Spectrometry, EarlyView.
ABSTRACT Following the installation of the Laboratory for the Characterization and Speciation of Aerosols (LCEA) in 2008, and the confirmation of High Resolution Energy Dispersive Spectrometry (HiREDS) as a much promising development for X‐ray Emission Spectrometry in general and Particle Induced X‐ray Emission (PIXE) in particular, the installation of
M. A. Reis   +3 more
wiley   +1 more source

Plea for Defect Chemistry: The Fundamental Role of the Chemically Excited States in Solid‐State Chemistry and Beyond

open access: yesZeitschrift für anorganische und allgemeine Chemie, EarlyView.
In solids, the point defects take the role that in water is held by H3O+, OH−, and solutes. While the chemical ground structure (crystallographic structure) plays the role of the matrix, it is the chemically excited states (dissociation, disorder) that breathe life into the matter.
Joachim Maier
wiley   +1 more source

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