Results 31 to 40 of about 85,661 (305)

When Cubic is Not Isotropic: Phonon–Exciton Decoupling in CuInSnS4 Single Crystals

Advanced Optical Materials, EarlyView.
A cubic CuInSnS4 crystal does not fully play by cubic rules. While phonons follow the average iso‐tropic lattice symmetry, the disorder‐localized excitons break away, showing strong, and reproduci‐ble polarization‐dependent emission. This work shows how intrinsic cation disorder can turn a mac‐roscopically cubic material into a source of hidden ...
Lara Kim Linke, Yvonne Tomm, Xinyun Liu, Galina Gurieva, Daniel M. Többens, Pardis Adams, Michel Calame, Ryan W. Crisp, Jessica Boland, Seán Kavanagh, Susan Schorr, Mirjana Dimitrievska   +11 more
wiley   +1 more source

Direct observation of Néel-type skyrmions and domain walls in a ferrimagnetic DyCo3 thin film

Communications Physics, 2023
Isolated magnetic skyrmions are stable, topologically protected spin textures that are at the forefront of research interests today due to their potential applications in information technology.
Chen Luo, Kai Chen, Victor Ukleev, Sebastian Wintz, Markus Weigand, Radu-Marius Abrudan, Karel Prokeš, Florin Radu   +7 more
doaj   +1 more source

V2CTx MXene as a Sacrificial Promoter for NiFe Catalyst for Anion Exchange Membrane Electrolyzers

Advanced Science, EarlyView.
These findings demonstrate that V2CTx functions beyond passive conductive support as an active electronic participant whose structural legacy sustains durable performance even after vanadium leaching in Anion Exchange Membrane (AEM) Electrolysers. ABSTRACT Nickel‐iron layered double hydroxides (NiFe‐LDH) show excellent activity, their poor conductivity
Bastian Schmiedecke, Can Kaplan, Karuppasamy Dharmaraj, Axel Zuber, Merve Buldu‐Aktürk, Ningjun Chen, Mailis Lounasvuori, Xuyun Guo, Valeria Nicolosi, Thorsten Schultz, Norbert Koch, Johanna Rosen, Michelle P. Browne   +12 more
wiley   +1 more source

L’accès du plus grand nombre aux services essentiels ne se fera pas sans une implication du secteur privé et sans une tarification adéquate de ces services

Field Actions Science Reports, 2012
La couverture, via le secteur privé, des besoins en services de base (eau, énergie, services financiers, logement,..) des populations des pays en développement est une nécessité si l’on veut essayer de faire reculer la pauvreté.
Luc Rigouzzo
doaj  

Robust behavior and spin-texture stability of the topological surface state in Bi2Se3 upon deposition of gold

npj Quantum Materials, 2022
The Dirac point of a topological surface state (TSS) is protected against gapping by time-reversal symmetry. Conventional wisdom stipulates, therefore, that only through magnetisation may a TSS become gapped.
O. J. Clark, F. Freyse, L. V. Yashina, O. Rader, J. Sánchez-Barriga   +4 more
doaj   +1 more source

"Available Energy" vs. "Energy" [PDF]

Science, 1916
n ...
openaire   +3 more sources

Zukunftsbild Energie [PDF]

, 2023
Die Energiewende ist ins Stocken geraten und das schon seit geraumer Zeit. Die Gründe hierfür sind vielschichtig und abhängig von der jeweiligen Perspektive und der damit verbundenen Erwartungshaltung.
Gemsjäger, Ben, Biele, Charlotte, Leugner, Johannes, Schneider, Christof M., Pfendler, Anna, Rasti, Sasan Jacob, Speh, Rainer, Zipperling, Erik, Pfeifer, Frederike, Freiberger, Anne, Kleimaier, Martin, Benz, Thomas, Wingender, Sebastian, Nowak, Felix, Beerens, Wiebke   +14 more
core  

A Pore or not a Pore? Understanding Pore Size Distributions of Non‐Graphitic Carbon and Atomically‐Dispersed M‐N‐C Materials

Advanced Science, EarlyView.
Gassorption analysis of in‐plane functionalized carbons reveals small, uniform ultramicropore signatures as potential artefacts of specific adsorption of the probe gases. Low‐pressure Langmuir fitting links these features to distinct functionalities via adsorption energies, enabling straightforward quantification of otherwise inaccessible surface‐site ...
Simon W. J. Dietzmann, Asad Mehmood, Jian Liang Low, Shu‐Han Wu, Carsten Prinz, Ana Guilherme Buzanich, Jörg Radnik, Paul A. Appel, Franziska Emmerling, Tim‐Patrick Fellinger   +9 more
wiley   +1 more source

Kurzstudie Transformationsgeld [PDF]

, 2022
Vor dem Hintergrund der zunehmenden Auswirkungen der Klimakrise und der durch den Angriffskriegs Russlands gegen die Ukraine entstandenen Energie- und Rohstoffversorgungsprobleme ist die Bundesregierung zu einem schnellen und zielführenden Handeln ...
Venjakob, Maike, Brauneis, Hannah, Hülsdünker, Timo, Vondung, Florin, Heiser, Henri, Thema, Johannes, Kühlert, Markus, Egole, Anouk, Wagner, Oliver, Liedtke, Christa, Schuster, Sebastian, Ivanov, Angelika   +11 more
core   +1 more source

Impact of Electrolyte Formulation on the Phase Behavior and Interphase Formation of Sb/Graphite Electrodes for K‐Ion Batteries

Advanced Science, EarlyView.
Electrolyte formulation is shown to govern both interphase chemistry and bulk phase evolution in Sb/graphite anodes for potassium‐ion batteries. A diglyme‐based localized high‐concentration electrolyte promotes a thin inorganic‐rich interphase, suppresses deep graphite potassiation, limits electrode swelling, and stabilizes amorphous KxSb formation ...
Ezzoubair Bendadesse, Max Wacha, Zeynep Erdol, Yanan Sun, Carsten Prinz, Mirko Boin, Manuela Klaus, Tatiana Mishurova, Till Wolfram, Jürgen Janek, Philipp Adelhelm   +10 more
wiley   +1 more source