Results 51 to 60 of about 16,813,404 (391)

ELECTRONIC STRUCTURE AND LUMINESCENCE OF CSI:NA [PDF]

, 1979
Calculations are performed on several aspects of the luminescence of pure CsI and CsI:Na. These include electronic-structure calculations by both pseudopotential and semi-empirical molecular-orbital methods, as well as lattice-configuration studies.
MONNIER, R, ONG, CK, SONG, KS, STONEHAM, AM   +3 more
core   +1 more source

Electronic structure of MnSi: The role of electron-electron interactions

Physical Review B, 2006
We present an experimental study of the electronic structure of MnSi. Using x-ray absorption spectroscopy XAS, x-ray photoemission, and x-ray fluorescence, we provide experimental evidence that MnSi has a mixed valence ground state. We show that self-consistent local density approximation supercell calculations cannot replicate the XAS spectra of MnSi,
Carbone F, Zangrando M, Brinkman A, Nicolaou A, Bondino F, Magnano E, Nugroho AA, Parmigiani F, Jarlborg T, van der Marel D   +9 more
openaire   +5 more sources

Graph-based linear scaling electronic structure theory [PDF]

, 2016
We show how graph theory can be combined with quantum theory to calculate the electronic structure of large complex systems. The graph formalism is general and applicable to a broad range of electronic structure methods and materials, including ...
Bock, Nicolas, Cawkwell, Marc J., Djidjev, Hristo, Germann, Timothy C., Mniszewski, Susan M., Mohd-Yusof, Jamal, Negre, Christian F. A., Niklasson, Anders M. N., Rubensson, Emanuel H., Swart, Pieter J., Wall, Michael E.   +10 more
core   +1 more source

Multi-Field-Coupled Model and Solution of Active Electronically Scanned Array Antenna Based on Model Reconstruction

International Journal of Antennas and Propagation, 2018
Active electronically scanned array antenna (AESA antenna) is capable of controlling the radiation pattern by controlling the feeding phase of the radiating elements. It has good performance and plays an important role in radar systems.
Dan Han, Jin Huang, Jinzhu Zhou, Mei Wang, Sen Xu, Haitao Li, Shen Li   +6 more
doaj   +1 more source

Applying laser induced breakdown spectroscopy (LIBS) and elemental imaging on marine shells for archaeological and environmental research

Scientific Reports, 2023
Using LIBS for the analysis of archaeological and geological marine mollusc shells is a growing research area that relies on customised instrumentation and specific workflows that can accommodate the variety and precision of the required sampling ...
Niklas Hausmann, Danai Theodoraki, Victor Piñon, Panagiotis Siozos, Andreas Lemonis, Demetrios Anglos   +5 more
doaj   +1 more source

On the Structure of the Electron [PDF]

Zeitschrift für Naturforschung A, 2003
Usually the electron is described as a mathematical point with charge, mass, spin angular momentum, and electromagnetic field. Because of the unbounded energies this causes mathematical difficulties [1]. These can be avoided by considering a finite radius.
openaire   +1 more source

OpenFermion: the electronic structure package for quantum computers [PDF]

Quantum Science and Technology, 2017
Quantum simulation of chemistry and materials is predicted to be an important application for both near-term and fault-tolerant quantum devices. However, at present, developing and studying algorithms for these problems can be difficult due to the ...
J. McClean, N. Rubin, Kevin J Sung, I. Kivlichan, Xavier Bonet-Monroig, Xavier Bonet-Monroig, Yudong Cao, Chengyu Dai, E. Fried, C. Gidney, Brendan Gimby, P. Gokhale, Thomas Häner, Tarini S. Hardikar, Vojtěch Havlíček, O. Higgott, Cupjin Huang, J. Izaac, Zhang Jiang, Xinle Liu, Sam McArdle, M. Neeley, T. O’Brien, B. O’Gorman, B. O’Gorman, I. Ozfidan, M. Radin, J. Romero, Nicolas P. D. Sawaya, B. Senjean, Kanav Setia, Sukin Sim, Damian S. Steiger, M. Steudtner, M. Steudtner, M. Steudtner, Qiming Sun, Wei Sun, Daochen Wang, Fang Zhang, R. Babbush   +40 more
semanticscholar   +1 more source

Antireflection coated semiconductor laser amplifier for Bose-Einstein condensation experiments

AIP Advances, 2018
We present a slave laser highly suitable for the preparation and detection of 87Rb Bose-Einstein condensates (BEC). A highly anti-reflection coated laser diode serves as an optical amplifier, which requires neither active temperature stabilization nor ...
Saurabh Pandey, Hector Mas, Giannis Drougakis, Kostas G. Mavrakis, Mikis Mylonakis, Georgios Vasilakis, Vasiliki Bolpasi, Wolf von Klitzing   +7 more
doaj   +1 more source

Exciton coherence lifetimes from electronic structure [PDF]

, 2011
We model the coherent energy transfer of an electronic excitation within covalently linked aromatic homodimers from first-principles, to answer whether the usual models of the bath calculated via detailed electronic structure calculations can reproduce ...
Alan Aspuru-Guzik, Born M., David G. Tempel, John A. Parkhill, May V., Mukamel S., Zare R.   +6 more
core   +3 more sources

Miniaturized Wideband CP Antenna Using Hybrid Embedded Metasurface Structure

IEEE Access, 2022
In this study, a hybrid embedded metasurface (MTS) structure is proposed and applied to realize a miniaturized MTS antenna. In contrast to the conventional periodic rectangular MTS, the proposed MTS structure is formed by hybrid embedded patches composed
Bin Zheng, Na Li, Xiangyang Li, Xin Rao, Yuyu Shan   +4 more
doaj   +1 more source