Results 141 to 150 of about 836,069 (296)

Deepening the Understanding of Carbon Active Sites for ORR Using Electrochemical and Spectrochemical Techniques

Nanomaterials
Defect-containing carbon nanotube materials were prepared by subjecting two commercial multiwalled carbon nanotubes (MWCNTs) of different purities to purification (HCl) and oxidative conditions (HNO3) and further heat treatment to remove surface oxygen ...
Jhony Xavier Flores-Lasluisa, Diego Cazorla-Amorós, Emilia Morallón   +2 more
doaj   +1 more source

Birth Defects Res [PDF]

BackgroundGenitourinary infections (GUIs) are common among sexually active women. Yet, little is known about the risk of birth defects associated with GUIs.MethodsUsing data from the National Birth Defects Prevention Study, a multisite, population-based,

core  

Self-propelled topological defects

, 2020
Presented online on October 26, 2020 at 3:00 p.m.Julia Mary Yeomans, FRS, FInstP is a British theoretical physicist and academic. She is active in the fields of soft condensed matter and biological physics.
Yeomans, Julia
core  

Multiferroic‐Centric Materials and Systems Engineering for Battery Applications: An Insight Into Mechanisms, Strategies, and Characterizations

Advanced Science, EarlyView.
Multiferroic order parameters – polarization, magnetization, and ferroelastic strain – are positioned as dynamic design variables for batteries. Their mechanistic roles, practical tuning through fabrication and external fields, and ferroic‐resolved characterization routes are unified into a closed‐loop framework, revealing how coupled ferroic responses
Jiaqi Su, Yanda Zhu, Hao Peng, Manman Li, Xuzihan Zhang, Meixiao Wu, Siyuan Zhang, Yuhan Zeng, Jiwen Liao, Ming Luo, Hetaishan Huang, Yutong Wang, Sean Li, Wenxian Li   +13 more
wiley   +1 more source

Nonlinear quantum optics at a topological interface enabled by defect engineering

npj Nanophotonics
The integration of topology into photonics has generated a new design framework for constructing robust and unidirectional waveguides, which are not feasible with traditional photonic devices.
L. Hallacy, N. J. Martin, M. Jalali Mehrabad, D. Hallett, X. Chen, R. Dost, A. Foster, L. Brunswick, A. Fenzl, E. Clarke, P. K. Patil, A. M. Fox, M. S. Skolnick, L. R. Wilson   +13 more
doaj   +1 more source

Magnetotransport Signatures of Spin–Orbit Coupling in High‐Temperature Cuprate Superconductors

Advanced Science, EarlyView.
Large angle‐dependent magnetoresistance and planar Hall effects emerge at the superconducting transition of YBa2Cu3O7−x$\mathrm{YBa_2Cu_3O_{7-x}}$ thin films. These anomalous transport signatures, absent in the normal state, point to spin‐polarized quasiparticle dynamics enabled by an unexpected spin–orbit coupling landscape in cuprate superconductors,
Aleix Barrera, Huidong Li, Thomas Gunkel, Jordi Alcalá, Silvia Damerio, Can Onur Avci, Anna Palau   +6 more
wiley   +1 more source

Evidence of topological charge polarization at active-passive interfaces in acoustically powered active liquid crystals

Physical Review Research
Theoretical and computational studies predict topological charge separation at active-passive interfaces in active nematics, but reliable experimental validation has been lacking.
Andrey Sokolov, Tadej Emersic, Paul Nealey, Juan de Pablo, Alexey Snezhko   +4 more
doaj   +1 more source

Generalized charges, part II: Non-invertible symmetries and the symmetry TFT

SciPost Physics
Consider a $d$-dimensional quantum field theory (QFT) $\mathfrak{T}$, with a generalized symmetry $\mathcal{S}$, which may or may not be invertible. We study the action of $\mathcal{S}$ on generalized or $q$-charges, i.e. $q$-dimensional operators.
Lakshya Bhardwaj, Sakura Schäfer-Nameki
doaj   +1 more source

Quantum Fields with Topological Defects

, 2006
Domain walls, strings and monopoles are extended objects, or defects, of quantum origin with topologically non--trivial properties and macroscopic behavior. They are described in Quantum Field Theory in terms of inhomogeneous condensates. We review the related formalism in the framework of the spontaneous breakdown of symmetry.
BLASONE, MASSIMO, JIZBA P, VITIELLO, Giuseppe   +2 more
openaire   +3 more sources

Polarization Dynamics in Ferroelectrics: Insights Enabled by Machine Learning Molecular Dynamics

Advanced Science, EarlyView.
Machine learning molecular dynamics is presented as a route to capture polarization switching, domain wall kinetics, topological polar textures, and polar mechanical coupling beyond the limits of conventional atomistic methods. This Perspective surveys recent progress and identifies key methodological directions, including long‐range electrostatics ...
Dongyu Bai, Ri He, Junxian Liu, Liangzhi Kou   +3 more
wiley   +1 more source