Results 111 to 120 of about 2,054,858 (263)

Electroplating of Wear‐ and Corrosion‐Resistant CrCoNi Medium‐Entropy Alloys beyond Hard Chromium Coatings

Advanced Functional Materials, EarlyView.
The electroplating of a CrCoNi medium‐entropy alloy is achieved using a mixture of an ionic liquid and an aqueous solution containing metal salts. The CrCoNi medium‐entropy alloy thin film exhibits high wear and corrosion resistance superior to conventional hard chromium coatings. Abstract High‐entropy alloys (HEAs) and medium‐entropy alloys (MEAs) are
Yuki Murakami, Shuhei Yoshida, Kosuke Ishii, Naoya Nishi, Akiyuki Ryoki, Nobuhiro Tsuji, Kuniaki Murase, Kazuhiro Fukami   +7 more
wiley   +1 more source

Ultra‐Fast Non‐Volatile Resistive Switching Devices with Over 512 Distinct and Stable Levels for Memory and Neuromorphic Computing

Advanced Functional Materials, EarlyView.
A materials and device design concept that comprises a self‐assembled ultra‐thin epitaxial ion‐transporting layer, an amorphous oxide overcoat oxygen‐blocking layer, and a partial filament formed during an electroforming step is proposed for low‐current multilevel resistive switching devices.
Ming Xiao, Markus Hellenbrand, Nives Strkalj, Babak Bakhit, Zhuotong Sun, Nikolaos Barmpatsalos, Dovydas Joksas, Hongyi Dou, Zedong Hu, Ping Lu, Samip Karki, Sundar Kunwar, Jonathan D. Major, Aiping Chen, Haiyan Wang, Quanxi Jia, Adnan Mehonic, Judith L. MacManus‐Driscoll   +17 more
wiley   +1 more source

Wetting of Surface Grafted Hydrophilic‐b‐Hydrophobic Block Copolymer Brushes

Advanced Functional Materials, EarlyView.
The wetting properties of surface grafted diblock copolymer brushes are influenced by the thickness of the hydrophilic bottom block and the hydrophobic top block. The surface adapts in presence of water and the contact angles of the bottom block shine through. Abstract The wetting of diblock copolymer brushes by water is studied.
Benjamin Leibauer, Andres de los Santos Pereira, Diego Fernando Dorado Daza, Y. Wang, A.S. Hazrah, Ognen Pop‐Georgievski, Hans‐Jürgen Butt, Rüdiger Berger   +7 more
wiley   +1 more source

Print‐and‐Plate Architected Electrodes for Electrochemical Transformations Under Flow

Advanced Functional Materials, EarlyView.
Typical flow cell electrodes are composed of stochastic porous carbon, limiting understanding of electrode structure‐performance relationships. This work describes an approach, termed “print‐and‐plate,” to prepare porous electrodes by direct ink writing followed by conformal metal coating.
Dylan M. Barber, Sofía Edgar, Michael S. Emanuel, Michael D. Nelwood, Bok Yeop Ahn, Benito Román‐Manso, Thomas Cochard, Justin Platero, Kiana Amini, Chris H. Rycroft, Shmuel Rubinstein, Michael J. Aziz, Jennifer A. Lewis   +12 more
wiley   +1 more source

Four-gauge-particle scattering amplitudes and Polyakov string path integral in the proper-time gauge

Physics Letters B, 2019
We evaluate four-gauge-particle tree level scattering amplitudes using the Polyakov string path integral in the proper-time gauge, where the string path integral can be cast into the Feynman-Schwinger proper-time representation.
Taejin Lee
doaj  

A Note on Soft Factors for Closed String Scattering [PDF]

arXiv, 2014
In this note, it is shown that closed string graviton scattering amplitudes obey the same subleading soft limit as field theory graviton scattering amplitudes. The result is derived using a combination of recent results and methods including the subleading soft expansion for type I open string gluon disk scattering amplitudes, the single value ...
arxiv  

Enhanced Terahertz Spectroscopy of a Monolayer Transition Metal Dichalcogenide

Advanced Functional Materials, EarlyView.
An ad‐hoc engineered metallic surface is employed to perform enhanced terahertz spectroscopy of a monolayer transition metal dichalcogenide (TMD). Thanks to a local absorption boost of 104, this technique allows for the extraction of the phonon resonance features and effective permittivity of the 2D material, paving the way for the rational design of ...
Xin Jin, Vincenzo Aglieri, Young‐Gyun Jeong, Atiye Pezeshki, Lilian Skokan, Mostafa Shagar, Yuechen Jia, Pablo Bianucci, Andreas Ruediger, Emanuele Orgiu, Andrea Toma, Luca Razzari   +11 more
wiley   +1 more source

Switching From Acceptor to FRET Donor: How the Organic Solar Cell Architecture Can Change the Role of a Chromophore

Advanced Functional Materials, EarlyView.
The non‐fullerene acceptor o‐IDT‐BT‐DCV is used in both binary and ternary blends to investigate the role that it plays in each device architecture. The charge generation pathways are found to differ between the binary and ternary blends with o‐IDT‐BT‐DCV becoming a second donor in the ternary blend.
Hui Jin, Neil Mallo, Guanran Zhang, Oliver Lindsay, Ronan Chu, Mile Gao, Shaun McAnally, Isaac M. Etchells, Paul L. Burn, Ian R. Gentle, Paul E. Shaw   +10 more
wiley   +1 more source

Learning the simplicity of scattering amplitudes

SciPost Physics
The simplification and reorganization of complex expressions lies at the core of scientific progress, particularly in theoretical high-energy physics.
Clifford Cheung, Aurélien Dersy, Matthew D. Schwartz
doaj   +1 more source

Notes on scattering amplitudes as differential forms

Journal of High Energy Physics, 2018
Inspired by the idea of viewing amplitudes in N = 4 $$ \mathcal{N}=4 $$ SYM as differential forms on momentum twistor space, we introduce differential forms on the space of spinor variables, which combine helicity amplitudes in any four-dimensional gauge
Song He, Chi Zhang
doaj   +1 more source