Results 261 to 270 of about 188,539 (327)

Unscreened Polaron Ordering Against High Electron Density on Mechanically Cleaved Surfaces of WO3 (001) Films

open access: yesSmall, EarlyView.
Unscreened high‐density polarons are discovered in a metallic WO3 (001) 2DEG, stabilized by surface oxygen vacancies and c(2 × 2) reconstruction. ARPES and STM/STS reveal polaron formation and ordering, supported by first‐principles calculations. This work opens new avenues for exploring collective polaron phenomena, including bipolaron interactions ...
Gyubin Lee   +9 more
wiley   +1 more source

Magnon spectroscopy in the electron microscope. [PDF]

open access: yesNature
Kepaptsoglou D   +11 more
europepmc   +1 more source

Mobility of Single Vacancies and Adatoms in Graphene at Room Temperature

open access: yesSmall, EarlyView.
This study reveals that single vacancies in ion‐irradiated graphene migrate ≈100 nm at room temperature, driven by 0.8% tensile strain. Employing a nanopore mask, defect generation is spatially confined ansurrounded by non‐irradiated material, enabling direct observation of vacancy and adatom dynamics.
Tuan T. Tran   +4 more
wiley   +1 more source

Spectrally sharp magnetic excitations above the critical temperature in a frustrated Weyl semimetal. [PDF]

open access: yesNat Commun
Terilli M   +20 more
europepmc   +1 more source

Insight into Mo2C Nanoplates Growth by Means of Scanning Electrochemical Cell Microscopy for High‐Resolution Electrocatalytic Hydrogen Evolution Activity Mapping

open access: yesSmall Science, EarlyView.
High‐resolution scanning electrochemical cell microscopy reveals a size‐activity relationship in hexagonal α‐Mo2C nanoplates for the hydrogen evolution reaction (HER). Smaller nanoplates (<10 μm) show superior catalytic activity due to minimal native oxide species formation, low presence of step‐edges, and residual material.
Geovane Arruda de Oliveira   +8 more
wiley   +1 more source

Unravelling the Electro‐Photocatalytic Water Splitting Capabilities of 2D‐Bifunctional Mo2S3‐WS2 Catalyst: Implications for Renewable Energy Platforms

open access: yesSmall Methods, EarlyView.
Schematic representation of band alignment and scanning transmission electron microscopy (STEM) image of Mo2S3‐WS2 nanocomposites. Abstract Addressing the energy crisis and environmental pollution demands the development of efficient electro‐ and photocatalysts capable of facilitating hydrogen production via water splitting.
Levna Chacko   +8 more
wiley   +1 more source

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