Results 251 to 260 of about 250,974 (321)

Defect Engineering in Large‐Scale CVD‐Grown Hexagonal Boron Nitride: Formation, Spectroscopy, and Spin Relaxation Dynamics

Small, EarlyView.
The controlled formation of defects in large‐area CVD‐grown hBN using various irradiation methods is demonstrated. Defect type and properties depend on particle type (He+, Ne+, Ar+, neutrons, and electrons), substrate effects, and film thickness.
Ivan V. Vlassiouk, Yueh‐Chun Wu, Alexander Puretzky, Liangbo Liang, John Lasseter, Bogdan Dryzhakov, Ian Gallagher, Sujoy Ghosh, Nickolay Lavrik, Ondrej Dyck, Andrew R. Lupini, Marti Checa, Liam Collins, Harry M. Meyer III, Huan Zhao, Farzana Likhi, Kai Xiao, Ilia Ivanov, David Glasgow, Alexander Tselev, Benjamin Lawrie, Sergei Smirnov, Steven J. Randolph   +22 more
wiley   +1 more source

An investigation of adsorbed species and related model compounds by inelastic neutron scattering spectroscopy [PDF]

, 1980
Keith Robson
openalex  

Flexoelectric Polarization Enhancement in Paraelectric BaHfO3 via Strain Gradient Engineering

Small, EarlyView.
A strain gradient exceeding ≈105 m−1 in coherently grown BaHfO3 thin films induces a 29‐fold enhancement in field‐induced polarization. These results demonstrate flexoelectric coupling in a centrosymmetric paraelectric oxide thin film, offering a route to polarization control without relying on ferroic phase transitions.
Timo Piecuch, Nina Daneu, Jeffrey A. Brock, Xiaochun Huang, Tina Radoševič, Arnold M. Müller, Christof Vockenhuber, Christof W. Schneider, Thomas Lippert, Nick A. Shepelin   +9 more
wiley   +1 more source

Error evaluation of partial scattering functions obtained from contrast-variation small-angle neutron scattering. [PDF]

J Appl Crystallogr
Mayumi K, Oda T, Miyajima S, Obayashi I, Tanaka K.   +4 more
europepmc   +1 more source

Unravelling Mixed Organic‐Halide Perovskite Degradation Under Extrinsic Factors

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Advanced characterization methods like neutron reflectometry (NR) provide insights into degradation by using isotope substitution to track components. NR indicates improved stability of hybrid perovskite films on TiO2 and reveals interfacial layers at the film base, likely containing FAI, PbI2, and MABr.
Manuel Salado, Timur V. Tropin, Abdessamad El Adel, Lisa Sarah Fruhner, Julia Sánchez‐Bodón, Jose L. Vilas‐Vilela, Anton P. Le Brun, Thomas Saerbeck, Ivan Infante, Viktor Petrenko, Jose M. Porro   +10 more
wiley   +1 more source

Topotactic Phase Transition in Epitaxial La0.7Sr0.3MnO3‐δ Films Induced by Oxygen Getter Assisted Thermal Annealing

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The perovskite to brownmillerite topotactic phase transition in La0.7Sr0.3MnO3‐δ thin films is achieved through a simple and efficient thermal vacuum annealing that employs bulk aluminum as an active oxygen getter. STEM reveals surface segregation and cation redistribution, while EELS identifies distinct manganese oxidation states across different ...
Chenyang Yin, Lei Cao, Xue Bai, Suqin He, Hengbo Zhang, Tomáš Duchoň, Felix Gunkel, Yunxia Zhou, Mao Wang, Anton Kaus, Janghyun Jo, Rafal E. Dunin‐Borkowski, Shengqiang Zhou, Thomas Brückel, Oleg Petracic   +14 more
wiley   +1 more source

The promise of GaAs 200 in small-angle neutron scattering for higher resolution. [PDF]

J Appl Crystallogr
Magerl A, Lemmel H, Appel M, Weisser M, Kretzer U, Zobel M.   +5 more
europepmc   +1 more source

Advanced Analysis Techniques for Elucidating Failure Mechanisms in Silicon Anodes for Li‐Ion Batteries

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This review explains the fundamental causes of Si anode failure in Li‐ion batteries and demonstrates how advanced analytical techniques reveal these degradation pathways. By integrating real‐time structural, chemical, and interfacial observations, it clarifies the mechanisms of volume expansion, unstable SEI growth, and phase transitions that lead to ...
Aneel Pervez, Taeyong Choi, Donghyu Lee, Yeonu Mun, Pilgun Oh, Ji‐Hun Cha, Yoonkook Son   +6 more
wiley   +1 more source