Results 61 to 70 of about 677,232 (187)

Photoelectric Imaging of the Optically Inactive Charge State of Silicon‐Vacancy Defects in Diamond

Advanced Science, Volume 13, Issue 60, 28 October 2026.
Although the doubly negative charge state of the SiV center in diamond is predicted to ionize only in the ultraviolet and is therefore considered optically inaccessible, we demonstrate visible‐range photoelectric imaging enabled by a previously unrecognized regime of laser‐assisted tunneling. ABSTRACT The investigation of optically active point defects
Ilia Chuprina, Gergő Thiering, Emilie Bourgeois, Anna Ermakova, Dmitry Budker, Adam Gali, Milos Nesladek, Petr Siyushev, Fedor Jelezko   +8 more
wiley   +1 more source

Expanding the Applicability of Some High Order Househölder-Like Methods

Algorithms, 2017
This paper is devoted to the semilocal convergence of a Househölder-like method for nonlinear equations. The method includes many of the studied third order iterative methods.
Sergio Amat, Ioannis K. Argyros, Miguel A. Hernández-Verón, Natalia Romero   +3 more
doaj   +1 more source

Alkali Chalcogenido Dialuminates A6[Al2Q6] (A = K, Rb, Cs; Q = S, Se, Te)

Zeitschrift für anorganische und allgemeine Chemie, Volume 652, Issue 15, 1 October 2026.
Seven new alkali chalcogenido aluminates A6[Al2Q6] (A = K‐Cs, Q = S‐Te) complement the family of simple metallates(III) A6[M2Q6] (M = Al‐In, FeIII) with dinuclear anions of two edge sharing [AlQ4] tetrahedra. Despite the similar anions, straightforward bonding situation and physical properties, these metallates crystallize in seven different structure ...
Michael Schwarz, Vincent Daiber, Caroline Röhr   +2 more
wiley   +1 more source

Semilocal and local convergence of a fifth order iteration with Frechet derivative satisfying Holder condition [PDF]

, 2016
The semilocal and local convergence in Banach spaces is described for a fifth order iteration for the solutions of nonlinear equations when the Frechet derivative satisfies the Holder condition.
Singh, S., Hueso Pagoaga, José Luís, Gupta, D.K., Martínez Molada, Eulalia   +3 more
core   +1 more source

Dielectric‐Confinement‐Induced in‐Plane Photoelectric Anisotropy in Isotropic Quasi‐1D γ‐GaS Nanoribbon

Advanced Science, Volume 13, Issue 45, 13 August 2026.
We investigate the geometry‐governed optoelectronic anisotropy arising from dielectric confinement in quasi‐1D γ‐GaS nanoribbons with intrinsically isotropic atomic structures. Dielectric mismatch between the nanoribbon and its surroundings leads to a general polarization‐dependent photoresponse during near‐field scattering.
Jiawei Jing, Jiamei Chen, Xing Xin, Peisong Peng, Zhihao Wu, Weiheng Zhong, Hanyu Zhang, Wanfu Shen, Jihua Zhang, Yuwei Shan, Yuanzheng Li, Xingang Zhao, Wei Xin, Fang Wang, Weida Hu, Haiyang Xu, Yichun Liu   +16 more
wiley   +1 more source

A Unified Convergence Analysis for Some Two-Point Type Methods for Nonsmooth Operators

Mathematics, 2019
The aim of this paper is the approximation of nonlinear equations using iterative methods. We present a unified convergence analysis for some two-point type methods.
Sergio Amat, Ioannis Argyros, Sonia Busquier, Miguel Ángel Hernández-Verón, María Jesús Rubio   +4 more
doaj   +1 more source

Universally Accurate or Specifically Inadequate? Stress‐Testing General Purpose Machine Learning Interatomic Potentials

Advanced Intelligent Discovery, Volume 2, Issue 4, August 2026.
We investigate MACE‐MP‐0 and M3GNet, two general‐purpose machine learning potentials, in materials discovery and find that both generally yield reliable predictions. At the same time, both potentials show a bias towards overstabilizing high energy metastable states. We deduce a metric to quantify when these potentials are safe to use.
Konstantin S. Jakob, Karsten Reuter, Johannes T. Margraf   +2 more
wiley   +1 more source

Solving equations using Newton's method under weak conditions on Banach spaces with a convergence structure

Journal of Numerical Analysis and Approximation Theory, 2008
We provide new semilocal results for Newton's method on Banach spaces with a convergence structure. Using more precise majorizing sequence we show that, under weaker convergence conditions than before, we can obtain finer error bounds on the distances ...
Ioannis K. Argyros
doaj   +2 more sources

Ab Initio Investigation of MgXe, Its Cation Mg+Xe and Clusters Mg+Xen: Electronic Structure, Spectroscopic Properties, and Temperature‐Dependent Absorption Spectra

International Journal of Quantum Chemistry, Volume 126, Issue 13, July 5, 2026.
Accurate potential energy curves, spectroscopic constants, and transition dipole moments were determined for the Mg+Xe and MgXe complexes. Spin–orbit effects were explicitly included for the Mg+Xe ionic system. Monte Carlo simulations were employed to investigate Mg+Xen clusters, and the temperature dependence of their absorption spectra was analyzed ...
M. Bejaoui, S. Awali, W. Zrafi, J. Dhiflaoui, H. Berriche   +4 more
wiley   +1 more source

Simple normal crossing Kähler–Einstein metrics and RCD spaces

Bulletin of the London Mathematical Society, Volume 58, Issue 7, July 2026.
Abstract We show that Kähler–Einstein metrics with cone singularities along simple normal crossing (SNC) divisors define Riemannian Curvature Dimension (RCD) spaces, both in the compact setting and in certain non‐compact cases, thereby producing many examples of Einstein RCD spaces. In particular, we show the existence of smooth non‐compact 4‐manifolds
Martin de Borbon, Cristiano Spotti
wiley   +1 more source