Results 21 to 30 of about 16,658,218 (400)

Electronic Structure of GaAs [PDF]

Physical Review Letters, 1974
Using a nonlocal pseudopotential, including spin-orbit interactions, we have calculated a band structure for GaAs which is in excellent agreement with electroreflectance, wave-length-modulation, and photoemission experimental results. As in a calculation by Pandey and Phillips, an order of magnitude in accuracy has been gained over existing band ...
James R. Chelikowsky, James R. Chelikowsky, Marvin L. Cohen, Marvin L. Cohen   +3 more
openaire   +3 more sources

Recent progress on the electronic structure, defect, and doping properties of Ga2O3

APL Materials, 2020
Gallium oxide (Ga2O3) is an emerging wide bandgap semiconductor that has attracted a large amount of interest due to its ultra-large bandgap of 4.8 eV, a high breakdown field of 8 MV/cm, and high thermal stability.
Jiaye Zhang, Jueli Shi, D. Qi, Lang Chen, K. H. Zhang   +4 more
semanticscholar   +1 more source

Practical challenges in data‐driven interpolation: Dealing with noise, enforcing stability, and computing realizations

International Journal of Adaptive Control and Signal Processing, EarlyView., 2023
Summary In this contribution, we propose a detailed study of interpolation‐based data‐driven methods that are of relevance in the model reduction and also in the systems and control communities. The data are given by samples of the transfer function of the underlying (unknown) model, that is, we analyze frequency‐response data.
Quirin Aumann, Ion Victor Gosea
wiley   +1 more source

Investigations on the Bragg grating recording in all-silica, standard and microstructured optical fibers using 248 nm, 5 ps laser radiation [PDF]

Journal of the European Optical Society-Rapid Publications, 2009
The fabrication of Bragg reflectors in hydrogenated, all-silica, fluorine cladding depressed and microstructured optical fibers using 248 nm, 5 ps laser radiation, is investigated here.
Pissadakis S., Livitziis M., Tsibidis G. D.   +2 more
doaj   +1 more source

Multiple-Beam Steering Using Graphene-Based Coding Metasurfaces

Micromachines, 2023
Recently, the coding metasurface has gained significant attention due to its exceptional potential in controlling electromagnetic (EM) waves with the rapid development of wireless communication systems.
Bin Zheng, Xin Rao, Yuyu Shan, Chuandong Yu, Jingke Zhang, Na Li   +5 more
doaj   +1 more source

Real-Time Time-Dependent Electronic Structure Theory.

Chemical Reviews, 2020
Real-time electronic structure methods provide an unprecedented view of electron dynamics and ultrafast spectroscopy on the atto- and femtosecond time scale with vast potential to yield new insights into the electronic behavior of molecules and materials.
Xiaosong Li, N. Govind, C. Isborn, A. DePrince, Kenneth Lopata   +4 more
semanticscholar   +1 more source

The Driving Waveform Design Method of Power-Law Fluid Piezoelectric Printing Based on Iterative Learning Control

Sensors, 2022
In some applications of piezoelectric three-dimensional inkjet printing, the materials used are power-law fluids as they are shear thinning. Their time-varying viscosities affect the droplet formation, which is determined by the volume flow rate at the ...
Ju Peng, Jin Huang, Jianjun Wang, Fanbo Meng, Hongxiao Gong, Bu Ping   +5 more
doaj   +1 more source

Computational Complexity in Electronic Structure [PDF]

, 2012
In quantum chemistry, the price paid by all known efficient model chemistries is either the truncation of the Hilbert space or uncontrolled approximations.
Aaronson, Aharonov, Alán Aspuru-Guzik, Arora, Arora, Arora, Aspuru-Guzik, Aspuru-Guzik, Auerbach, Barahona, Batista, Ben-David, Bernstein, Berry, Biamonte, Biamonte, Bogdanov, Boyd, Bravyi, Brown, Brown, Chan, Chan, Chan, Cleveland, Coulson, Cramer, Deutsch, Dutta, Feynman, Foulkes, Grötschel, Hammond, Harrow, Helgaker, Hohenberg, Hong, Istrail, James Daniel Whitfield, Jordan, Kassal, Kassal, Kempe, Kitaev, Kitaev, Koch, Kohn, Lester Jr., Levine, Lieb, Liu, Lloyd, Love, Lu, Mazziotti, Mazziotti, Moore, Nielsen, Oliveira, Onsager, Ortiz, Osborne, Parr, Peter John Love, Rassolov, Schuch, Schuch, Schuch, Sipser, Somma, Szabo, Tempel, Troyer, Turing, Veis, Verstraete, Verstraete, Wei, Whitfield, Wu, Yung   +80 more
core   +3 more sources

Laser-Induced Morphological and Structural Changes of Cesium Lead Bromide Nanocrystals

Nanomaterials, 2022
Metal halide perovskite nanocrystals, an emerging class of materials for advanced photonic and optoelectronic applications, are mainly fabricated with colloidal chemistry routes.
Athanasia Kostopoulou, Konstantinos Brintakis, Maria Sygletou, Kyriaki Savva, Nikolaos Livakas, Michaila Akathi Pantelaiou, Zhiya Dang, Alexandros Lappas, Liberato Manna, Emmanuel Stratakis   +9 more
doaj   +1 more source

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