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Bibliografias temáticas / Electrons

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Literatura científica selecionada sobre o tema "Electrons"

Autor: Grafiati

Publicado: 4 de junho de 2021

Última modificação: 25 de julho de 2025

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Artigos de revistas sobre o assunto "Electrons"

1

Wang, Xiaoping, Shusai Zheng, Zhen Li, et al. "Radiation electron trajectory modulated DC surface flashover of polyimide in vacuum." Journal of Physics D: Applied Physics 55, no. 20 (2022): 205201. http://dx.doi.org/10.1088/1361-6463/ac4cf8.

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Abstract Improving surface flashover voltage on vacuum-dielectric interface irradiated by electrons is a long-standing challenge for developing high-voltage and high-power spacecraft technology. The basic issue is understanding the role of radiation electrons in the process of surface flashover. In this paper, a ‘three-segment’ curve concerning the surface flashover properties under electron irradiation is discovered experimentally. As the gap distance of electrodes increase, the surface flashover voltage of polyimide during electron irradiation presents a trend of firstly increasing, then dec

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2

Suzuki, Kosuke, Ayumu Terasaka, Tomoya Abe, and Hiroshi Sakurai. "Modification of Electronic Structures with Lithium Intercalation in Li_xMn₂O₄ (x = 0 and 1) Studied by CRYSTAL14 Calculation Code." Key Engineering Materials 790 (November 2018): 15–19. http://dx.doi.org/10.4028/www.scientific.net/kem.790.15.

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In this study, we calculate electronic structures for Mn2O4 and LiMn2O4 by using CRYSTAL14 ab-initio calculation code in order to understand electrode reaction mechanism of LixMn2O4 by lithiation/delithiation. Mulliken population analysis for all electrons show that the redox orbitals with lithiation and delithiation is O 2p orbitals. However, difference charge densities between majority and minority electrons indicate the change of distribution in Mn 3d orbitals by lithiation. This modification of distribution in Mn 3d orbitals suggests the change of electron configuration because the number

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3

Schultheiss, Katrin, Joachim Zach, Bjoern Gamm, et al. "New Electrostatic Phase Plate for Phase-Contrast Transmission Electron Microscopy and Its Application for Wave-Function Reconstruction." Microscopy and Microanalysis 16, no. 6 (2010): 785–94. http://dx.doi.org/10.1017/s1431927610093803.

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AbstractA promising novel type of electrostatic phase plate for transmission electron microscopy (TEM) is presented. The phase plate consists of a single microcoaxial cable-like rod with its electrode exposed to the undiffracted electrons. The emerging field is used to shift the phase of the undiffracted electrons with respect to diffracted electrons. The design overcomes the drawback of the spatial frequency-blocking ring electrode of the Boersch phase plate. First, experimental phase-contrast images are presented for PbSe and Pt nanoparticles with clearly varying phase contrast, which depend

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4

Troyon, Michel, and He Ning Lei. "Electron Trajectories Calculations of an Energy - Filtering Field-Emission Gun." Proceedings, annual meeting, Electron Microscopy Society of America 48, no. 1 (1990): 192–93. http://dx.doi.org/10.1017/s0424820100179713.

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In many cases, the contribution of beam energy spread to the limitation of the performances of an electron microscope is strong. In the case of the field emission gun (FEG) , Troyon has experimentally shown it is possible to reduce considerably the energy spread by energy filtering at the gun level. The system developed consists basically of a magnetic FEG with a retarding electrode working as the retarding electrode of an energy filter. The principle is recalled in Fig. 1 and the cross section of the accelerator is given in Fig. 2. In this paper, the results of electron trajectories calculati

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5

Joens, Steve. "Hitachi S-4700 ExB Filter Design and Applications." Microscopy and Microanalysis 7, S2 (2001): 878–79. http://dx.doi.org/10.1017/s1431927600030464.

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Electron beam - specimen interactions and SEM signals have been well understood and documented for many years. These interactions result in a variety of electron signals including the most common, secondary and backscattered electron. Each electron signal produces unique characteristic information about the sample surface, subsurface, and elemental composition. Important information can be gained by controlling and filtering electron signals collected by the electron detector system.The S-4700 Cold Field Emission SEM incorporates a set of electrodes and plates positioned in the objective lens

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6

Dedulewich, S., Z. Kancleris, A. Matulis, and Yu Pozhela. "Electron-electron scattering in hot electrons." Semiconductor Science and Technology 7, no. 3B (1992): B322—B323. http://dx.doi.org/10.1088/0268-1242/7/3b/081.

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7

Mitrokhovich, M. F., V. T. Kupryashkin, and L. P. Sidorenko. "Correlation of the Auger electrons direction of movement with the internal electron conversion direction of movement." Nuclear Physics and Atomic Energy 14, no. 2 (2013): 129–34. https://doi.org/10.15407/jnpae2013.02.129.

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By registering coincidences of γ-quanta with electrons and with low (about zero) energy electrons, the spatial correlation of the direction of emitted Auger-electrons and electron of internal conversion was investigated in the 152Eu decay. Auger-electrons were registered by е0-electrons of the secondary electron emission (γеICе0-coincidences). It was established that Auger-electrons of M-series, as well as electrons "shake-off" at β-decay and internal conversion, are strongly correlated at the direction of movement with the direction of movement of basic particle (β-particle, conversion electr

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8

Golden, Joel, Matthew D. Yates, Michelle Halsted, and Leonard Tender. "Application of electrochemical surface plasmon resonance (ESPR) to the study of electroactive microbial biofilms." Physical Chemistry Chemical Physics 20, no. 40 (2018): 25648–56. http://dx.doi.org/10.1039/c8cp03898h.

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Results reveal that for an electrode-grown Geobacter sulfurreducens biofilm, as much as 70% of cytochrome hemes residing within hundreds of nanometers from the electrode surface store electrons even as extracellular electron transport is occurring across the biofilm/electrode interface.

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9

Toth, M., and M. R. Phillips. "Space Charge Artifacts in ESEM Images: Shadowing and Contrast Reversal." Microscopy and Microanalysis 6, S2 (2000): 774–75. http://dx.doi.org/10.1017/s1431927600036369.

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The environmental scanning electron microscope (ESEM) employs a series of pressure limiting apertures and a differential pumping system to allow for electron imaging at specimen chamber pressures of up to 50 torr. Images rich in secondary electron (SE) contrast can be obtained using the gaseous secondary electron detector (GSED) or ion current (Iion) signals. The GSED and Iion signals are amplified in a gas cascade. SEs emitted from a sample are accelerated through the gas in the specimen chamber by an electric field, EGSED, produced by a positively biased electrode located in the chamber, abo

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10

Nur-E-Habiba, Rokon Uddin, Kalle Salminen, Veikko Sariola, and Sakari Kulmala. "Carbon Particle-Doped Polymer Layers on Metals as Chemically and Mechanically Resistant Composite Electrodes for Hot Electron Electrochemistry." Journal of Electrochemical Science and Technology 13, no. 1 (2022): 100–111. http://dx.doi.org/10.33961/jecst.2021.00640.

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This paper presents a simple and inexpensive method to fabricate chemically and mechanically resistant hot electron-emitting composite electrodes on reusable substrates. In this study, the hot electron emitting composite electrodes were manufactured by doping a polymer, nylon 6,6, with few different brands of carbon particles (graphite, carbon black) and by coating metal substrates with the aforementioned composite ink layers with different carbon-polymer mass fractions. The optimal mass fractions in these composite layers allowed to fabricate composite electrodes that can inject hot electrons

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Teses / dissertações sobre o assunto "Electrons"

1

Hoffrogge, Johannes Philipp. "A surface-electrode quadrupole guide for electrons." Diss., lmu, 2012. http://nbn-resolving.de/urn:nbn:de:bvb:19-155503.

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2

Papageorgiou, George. "Counting electrons on helium using a single electron transistor." Thesis, Royal Holloway, University of London, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.415196.

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3

Schäfer-Bung, Boris, and Mathias Nest. "Correlated dynamics of electrons with reduced two-electron density matrices." Universität Potsdam, 2008. http://opus.kobv.de/ubp/volltexte/2010/4177/.

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We present an approach to the correlated dynamics of many-electron systems. We show, that the twoelectron reduced density matrix (2RDM) can provide a suitable description of the real time evolution of a system. To achieve this, the hierarchy of equations of motion must be truncated in a practical way. Also, the computational effort, given that the 2RDM is represented by products of two-electron determinants, is discussed, and numerical model calculations are presented.

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4

Krecinic, Faruk [Verfasser]. "Ultrafast electron diffraction and imaging using ionized electrons / Faruk Krecinic." Berlin : Freie Universität Berlin, 2017. http://d-nb.info/1142155447/34.

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5

Miller, Nathan A. "Using electron-tunneling refrigerators to cool electrons, membranes, and sensors." Connect to online resource, 2008. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3315773.

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6

Hardy, Thomas M. "Superconductivity with strongly correlated electrons and an electron-phonon interaction." Thesis, Loughborough University, 2009. https://dspace.lboro.ac.uk/2134/34947.

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The effect on the stability of the superconducting phase due the addition of an electron–phonon interaction to a repulsive Hubbard model is studied. Our Hubbard–Fröhlich Hamiltonian includes electron hoping, the on-site Coulomb repulsion, vibrating ions (phonons) and the electron–phonon interaction. A Lang–Firsov transformation is used to integrate out the phonon degrees of freedom. The transformation reduces the model to simple a Hubbard Hamiltonian with an additional long-range electron–electron attraction. A variational Monte Carlo technique, with a projected BCS trial function, is used to

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7

Siedlein, Rupert V. "A search for excited electrons in electron-proton collisions at HERA /." The Ohio State University, 1994. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487854314871133.

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8

Moreira, Leandro Malard. "Raman spectroscopy of graphene:: probing phonons, electrons and electron-phonon interactions." Universidade Federal de Minas Gerais, 2009. http://hdl.handle.net/1843/ESCZ-7ZFGDY.

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Since the identification of mono and few graphene layers in a substrate in 2004, intensive work has been devoted to characterize this new material. In particular, Raman spectroscopy played an important role in unraveling the properties of graphene systems. Moreover resonant Raman scattering (RRS) in graphene systems was shown to be an important tool to probe phonons, electrons and electronphononinteractions. In this thesis, by using different laser excitation energies, we obtain important electronic and vibrational properties of mono- and bi-layer graphene. For monolayer graphene, we determine

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9

Ren, Yan-Ru. "Orbital spin-splitting factors for conduction electrons in lead." Thesis, University of British Columbia, 1985. http://hdl.handle.net/2429/25961.

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A detailed experimental study has been made of the spin-splitting factors ℊc for magnetic Landau levels associated with conduction electrons in extremal orbits on the Fermi surface of lead. This information has been derived from the waveform of the de Haas-van Alphen (dHvA) quantum oscillations in the magnetization of single-crystal lead spheres at temperatures of about 1.2 K and with applied magnetic fields in the range 50-75 kG. A commercial spectrum analyzer has been used to provide on-line values of the harmonic amplitudes in the dHvA waveform, and the values of ℊc have been extracted from

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10

Dogbe, John Kofi. "Comparing cluster and slab model geometries from density functional theory calculations of si(100)-2x1 surfaces using low-energy electron diffraction." abstract and full text PDF (free order & download UNR users only), 2007. http://0-gateway.proquest.com.innopac.library.unr.edu/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:3258835.

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Mais fontes

Livros sobre o assunto "Electrons"

1

Kessler, Joachim. Polarized Electrons. Springer Berlin Heidelberg, 1985. http://dx.doi.org/10.1007/978-3-662-02434-8.

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2

Kessler, Joachim. Polarized Electrons. Springer Berlin Heidelberg, 1985.

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3

Fields, B. H. Understanding electrons. Cavendish Square, 2016.

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4

Amdahl, Kenn. There are no electrons: Electronics for earthlings. Clearwater Pub. Co., 2000.

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5

Hawkes, P. W. Advances in Electronics and Electron Physics, 67. Elsevier, 1986.

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6

B, Hirsch P., ed. Topics in electron diffraction and microscopy of materials. Institute of Physics Publishing, 1999.

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7

Zou, Xiaodong. Electron crystallography: Electron microscopy and electron diffraction. Oxford University Press, 2011.

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8

Burstein, Elias, and Claude Weisbuch, eds. Confined Electrons and Photons. Springer US, 1995. http://dx.doi.org/10.1007/978-1-4615-1963-8.

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9

Haug, Rolf, and Herbert Schoeller, eds. Interacting Electrons in Nanostructures. Springer Berlin Heidelberg, 2001. http://dx.doi.org/10.1007/3-540-45532-9.

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10

M, Alpatova N., ed. Organolithium compounds, solvated electrons. Springer-Verlag, 1987.

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Capítulos de livros sobre o assunto "Electrons"

1

Keighley, H. J. P., F. R. McKim, A. Clark, and M. J. Harrison. "Electrons and Electron Beams." In Mastering Physics. Macmillan Education UK, 1986. http://dx.doi.org/10.1007/978-1-349-86062-3_21.

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2

Keighley, H. J. P., F. R. McKim, A. Clark, and M. J. Harrison. "Electrons and Electron Beams." In Mastering Physics. Macmillan Education UK, 1986. http://dx.doi.org/10.1007/978-1-349-08849-2_21.

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3

Mc McClintock, P. V. E., D. J. Meredith, and J. K. Wigmore. "Electrons." In Low-Temperature Physics: an introduction for scientists and engineers. Springer Netherlands, 1992. http://dx.doi.org/10.1007/978-94-011-2276-4_3.

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4

Arabatzis, Theodore. "Electrons." In Compendium of Quantum Physics. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-70626-7_62.

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5

Anjali, V. R. "Electrons." In Practical Radiation Oncology. Springer Singapore, 2019. http://dx.doi.org/10.1007/978-981-15-0073-2_11.

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6

Pearsall, Thomas P. "Electrons." In Quantum Photonics. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-55144-9_1.

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7

Moglestue, C. "Electrons." In Monte Carlo Simulation of Semiconductor Devices. Springer Netherlands, 1993. http://dx.doi.org/10.1007/978-94-015-8133-2_3.

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8

Yates, John T. "Electrons." In Experimental Innovations in Surface Science. Springer International Publishing, 2015. http://dx.doi.org/10.1007/978-3-319-17668-0_20.

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9

Schwarz, K. "Electrons." In International Tables for Crystallography. International Union of Crystallography, 2006. http://dx.doi.org/10.1107/97809553602060000639.

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10

Schwarz, K. "Electrons." In International Tables for Crystallography. International Union of Crystallography, 2013. http://dx.doi.org/10.1107/97809553602060000912.

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Trabalhos de conferências sobre o assunto "Electrons"

1

Brandão, Vitória M. C., Nilson D. Vieira junior, and Ricardo E. Samad. "Development of an Electron Spectrometer for Laser-Accelerated Electrons." In Frontiers in Optics. Optica Publishing Group, 2024. https://doi.org/10.1364/fio.2024.jtu5a.40.

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2

Henke, Jan-Wilke, Yujia Yang, F. Jasmin Kappert, et al. "Probing the Formation of Nonlinear Optical States with Free Electrons." In CLEO: Fundamental Science. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_fs.2024.fw3p.3.

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Combining nonlinear integrated photonics with electron microscopy, we probe the formation of optical dissipative structures in Si3N4 microresonators with free electrons and find unique spectral fingerprints in the electron spectrum that enable new electron beam modulation schemes.

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3

Arend, Germaine, Armin Feist, Guanhao Huang, et al. "Coupling Free Electrons and Cavity Photons in a Transmission Electron Microscope." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.jth4n.4.

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We couple free electrons to the optical modes of a photonic microring resonator. Inelastic electron scattering leads to the generation of cavity photons, correlated to the electrons in time and energy loss.

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4

Zhang, Yingrui, and David J. Quesnel. "Nanoscale Polarizations That Enable Stress Corrosion Cracking." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01678.

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Abstract This paper addresses fundamental mechanisms of stress corrosion cracking by simulating the 3D distribution of electrical charge at the tip of a stress corrosion crack. Ledges and steps on freshly created surfaces interact with electrons that move about on that surface in an effort to maintain a net negative equipotential. Excess electrons stick to the ledges, creating nanoscale variations in electrical polarization of the metal-electrolyte interface. The excess electrons, responsible for the negative free corrosion potential, have a spatially varying density that supports local variat

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5

Gao, Feng, Jianmin Qu, and Matthew Yao. "Conducting Properties of a Contact Between Open-End Carbon Nanotube and Various Electrodes." In ASME 2009 International Mechanical Engineering Congress and Exposition. ASMEDC, 2009. http://dx.doi.org/10.1115/imece2009-11117.

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The carbon nanotube (CNT) is becoming a promising candidate as electrical interconnects in nanoscale electronics. This paper reports the electronic structure and the electrical conducting properties at the interface between an open-end single wall CNT (SWCNT) and various metal electrodes, such as Al, Au, Cu, and Pd. A simulation cell consisting of an SWCNT with each end connected to the metal electrode was constructed. A voltage bias is prescribed between the left- and right-electrodes to compute the electronic conductance. Due to the electronic structure, the electron density and local densit

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6

Schoenlein, R. W., W. Z. Lin, J. G. Fujimoto, and G. L. Eesley. "Femtosecond Studies of Nonequilibrium Electronic Processes in Metals." In International Conference on Ultrafast Phenomena. Optica Publishing Group, 1986. http://dx.doi.org/10.1364/up.1986.wc7.

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An ultrashort laser pulse incident on a metal first interacts with the electrons which thermalize rapidly via electron-electron scattering. If the pulses are sufficiently short, electron temperatures in excess of the lattice temperature are generated since the electronic specific heat is much less than that of the lattice. Thermal relaxation of the electrons occurs primarily through electron-phonon interaction. Such processes have been investigated theoretically and observed experimentally[1-3].

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7

Yablonovitch, E. "Photonic band structure: observation of an energy gap for light in 3-D periodic dielectric structures." In OSA Annual Meeting. Optica Publishing Group, 1988. http://dx.doi.org/10.1364/oam.1988.fw6.

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By analogy to electron waves in a crystal, light waves in a 3-D periodic dielectric structure should be described by band theory. Recently, the idea of photonic band structure1 has been introduced. This means that the concepts of reciprocal space, Brillouin zones, dispersion relations, Bloch wave functions, Van Hove singularities, etc. must now be applied to optical waves. If the depth of index of refraction modulation is sufficient, a photonic band gap can exist. This is an energy band in which optical modes, spontaneous emission, and zero point fluctuations are all absent. Therefore, inhibit

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8

Bekefi, G. "Free electron lasers with spiraling electrons." In 1985 Tenth International Conference on Infrared and Millimeter Waves. IEEE, 1985. http://dx.doi.org/10.1109/irmm.1985.9126557.

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9

Lin, Zhibin, and Leonid V. Zhigilei. "The Role of Thermal Excitation of D Band Electrons in Ultrafast Laser Interaction With Noble (Cu) and Transition (Pt) Metals." In 2007 First International Conference on Integration and Commercialization of Micro and Nanosystems. ASMEDC, 2007. http://dx.doi.org/10.1115/mnc2007-21076.

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The temperature dependences of the electron heat capacity and electron-phonon coupling factor for noble (Cu) and transition (Pt) metals are investigated based on the electron density of states (DOS) obtained from ab initio electronic structure calculations. For Cu, d band electrons could be thermally excited when the electron temperature exceeds ∼3000 K, leading to a significant increase, up to an order of magnitude, in the electron-phonon coupling factor and strong enhancement of the electron heat capacity away from the linear dependence on the electron temperature, which is commonly used in

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10

Goundar, Jowesh Avisheik, Qiao Xiangyu, Ken Suzuki, and Hideo Miura. "Improvement in Photosensitivity of Dumbbell-Shaped Graphene Nanoribbon Structures by Using Asymmetric Metallization Technique." In ASME 2021 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2021. http://dx.doi.org/10.1115/imece2021-69917.

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Abstract The existence of Schottky barrier between the semiconductive graphene nanoribbon (GNR) and the metallic electrodes at its both ends causes a major hurdle in the development of GNR based devices. Here, a dumbbell-shape GNR structure was proposed to solve the problem. This structure consisted of a semiconductive GNR and wide metallic GNR at both ends. The ohmic contact between the wide metallic GNR and metallic electrode was easily achieved. Furthermore, an effective mechanism to enhance electronic band properties of the dumbbell-shape GNR structure by using asymmetric metallization tec

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Relatórios de organizações sobre o assunto "Electrons"

1

van der Heijden, Joost. Optimizing electron temperature in quantum dot devices. QDevil ApS, 2021. http://dx.doi.org/10.53109/ypdh3824.

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The performance and accuracy of quantum electronics is substantially degraded when the temperature of the electrons in the devices is too high. The electron temperature can be reduced with appropriate thermal anchoring and by filtering both the low frequency and radio frequency noise. Ultimately, for high performance filters the electron temperature can approach the phonon temperature (as measured by resistive thermometers) in a dilution refrigerator. In this application note, the method for measuring the electron temperature in a typical quantum electronics device using Coulomb blockade therm

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2

Nishikawa, Masaru, R. A. Holroyd, and Kengo Itoh. Behavior of excess electrons in supercritical fluids -- Electron attachment. Office of Scientific and Technical Information (OSTI), 1999. http://dx.doi.org/10.2172/354895.

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3

Papadopoulou, Afroditi. Electrons for Neutrinos. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1460788.

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4

Kestner, N. Theoretical studies of electrons and electron transfer processes in fluids. Office of Scientific and Technical Information (OSTI), 1989. http://dx.doi.org/10.2172/7252887.

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5

Wernick, I. K., and T. C. Marshall. Acceleration of electrons using an inverse free electron laser auto- accelerator. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/5096041.

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6

Fieguth, T. a. Arnold, R. Electron Bypass Line (EBL) Design: Electrons to A-line bypassing LCLS. Office of Scientific and Technical Information (OSTI), 2008. http://dx.doi.org/10.2172/922589.

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7

Wernick, Iddo K., and Thomas C. Marshall. Acceleration of electrons using an inverse free electron laser auto- accelerator. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10159742.

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Preische, S., P. C. Efthimion, and S. M. Kaye. Radially localized measurements of superthermal electrons using oblique electron cyclotron emission. Office of Scientific and Technical Information (OSTI), 1996. http://dx.doi.org/10.2172/248329.

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Stancari, Giulio, J. Jarvis, N. Kuklev, et al. Detecting Single Electrons in IOTA. Office of Scientific and Technical Information (OSTI), 2018. http://dx.doi.org/10.2172/1498551.

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Bonesteel, Nicholas E. Correlated Electrons in Reduced Dimensions. Office of Scientific and Technical Information (OSTI), 2015. http://dx.doi.org/10.2172/1237352.

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