Results 81 to 90 of about 163,063 (295)

Switchable valley filter based on a graphene $p$-$n$ junction in a magnetic field

, 2017
Low-energy excitations in graphene exhibit relativistic properties due to the linear dispersion relation close to the Dirac points in the first Brillouin zone.
Bruder, C., Mele, E. J., Sekera, T., Tiwari, R. P.   +3 more
core   +1 more source

Single‐ and Dual‐Atom Configurations in Atomically Dispersed Catalysts for Lithium–Sulfur Batteries

Advanced Functional Materials, EarlyView.
Single‐atom and dual‐atom‐based atomically dispersed catalysts (ADCs) effectively address the shuttle effect and sluggish redox kinetics in Li–S batteries. With nearly 100% atomic utilization and tunable coordination environments, ADCs enhance LiPSs adsorption, lower conversion barriers, and accelerate sulfur redox reactions.
Haoyang Xu, Zhenfeng Li, Yue Fei, Ali Mohammadi, Ge Li   +4 more
wiley   +1 more source

Probing and manipulating valley coherence of dark excitons in monolayer WSe$_2$

, 2019
Monolayers of semiconducting transition metal dichalcogenides are two-dimensional direct-gap systems which host tightly-bound excitons with an internal degree of freedom corresponding to the valley of the constituting carriers.
Bartos, M., Basko, D. M., Faugeras, C., Kapuściński, P., Kazimierczuk, T., Kossacki, P., Molas, M. R., Nogajewski, K., Oreszczuk, K., Potemski, M., Slobodeniuk, A. O., Taniguchi, T., Watanabe, K.   +12 more
core   +3 more sources

Omnipolar Magnetic Field Detection by Superlattice‐Based Hall Sensor

Advanced Functional Materials, EarlyView.
Magnetic‐field‐induced electronic switching is demonstrated in unit‐cell‐engineered La0.7Sr0.3MnO3–BiFeO3 superlattices. Distinct substrate terminations modify magnetic and transport properties. Hall resistance measurements show omnipolar, hysteretic anomalous Hall switching above the Curie temperature, arising from Fe─Mn interfacial exchange, enabling
Mark Huijben, Nicolas Gauquelin, Arno Annys, Zhaoliang Liao, Jo Verbeeck, Guus Rijnders, Gertjan Koster   +6 more
wiley   +1 more source

Topological edge and corner states in a two-dimensional photonic Su-Schrieffer-Heeger lattice

Nanophotonics, 2020
Implementation of topology on photonics has opened new functionalities of photonic systems such as topologically protected boundary modes. We theoretically present polarization-dependent topological properties in a 2D Su-Schrieffer-Heeger lattice by ...
Kim Minkyung, Rho Junsuk
doaj   +1 more source

Solution‐Processed Two‐Dimensional Indium Oxide on Sodium‐Embedded Alumina for Reconfigurable Optoelectronic Synaptic Transistors

Advanced Functional Materials, EarlyView.
Wafer‐scale two‐dimensioanl In2Se3 oxidized into InOx on sodium‐embedded beta‐alumina enables multifunctional reconfigurable electronics. Sodium ions accumulate within distinct spatial distribution under drain‐controlle and gate‐controlled operation. Drain‐control operation gives controllability of ultraviolet‐driven optoelectronic synaptic conductance
Jinhong Min, Yonghyun Albert Kwon, Hyunbin Kim, Jihyun Kim, Myeongjin Jung, Jaewon Heo, Gwang Ya Kim, Vlastimil Mazanek, Zdeněk Sofer, In Soo Kim, Jeong Ho Cho, Hyesung Park, Sang Min Won, Joohoon Kang   +13 more
wiley   +1 more source

Relaxation in homogeneous and non-homogeneous polarized systems. A mesoscopic entropy approach

, 2010
The dynamics of a degree of freedom associated to an axial vector in contact with a heat bath is decribed by means of a probability distribution function obeying a Fokker-Planck equation.
Adachi, Barrera, Block, Coffey, de Gennes, Debye, Doi, Déjardin, Déjardin, Gadomski, Groot, Gyarmati, Hansen, Hernández, Híjar, I. Santamaría-Holek, J.G. Méndez-Bermúdez, Jackson, Kröger, Kröger, Málaga, Onsager, Osawa, Reguera, Rubi, Rubi, Ullman, Waldron, Yin, Zwanzig   +29 more
core   +1 more source

Characterization of an Injectable Poly(vinyl alcohol)‐gelatin Hydrogel for Growth Factor Delivery in an Orthopedic Application

Advanced Healthcare Materials, EarlyView.
This work introduces photo‐crosslinkable tyraminated poly(vinyl alcohol)‐gelatin (PVA‐GT) hydrogels as tunable injectable platforms for tissue engineering and growth factor delivery applications. This schematic illustrates the two developed hydrogel formulations and the experimental workflow used to evaluate their physico‐chemical properties in vitro ...
Alessia Longoni, Gretel S. Major, Sam Arnold, Samuel Tomkins, Eugenia Spessot, Scott Loeffler, Kieran Lau, Richard Tan, Jessica Harte, Roslyn Kemp, Tess Reynolds, Jelena Rnjak‐Kovacina, Gary J. Hooper, Tim B. F. Woodfield, David C. Kieser, Khoon S. Lim   +15 more
wiley   +1 more source

The Music of the Aetherwave - B-mode Polarization in Einstein-Aether Theory

, 2011
We study how the dynamical vector degree of freedom in modified gravity affects the CMB B-mode polarization in terms of the Einstein-aether theory. In this theory, vector perturbations can be generated from inflation, which can grow on superhorizon ...
A. A. Starobinsky, A. A. Starobinsky, C. M. Will, Masahiro Nakashima, T. Jacobson, Tsutomu Kobayashi, Y. Fujii   +6 more
core   +1 more source

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source