Log in

Relevant bibliographies by topics / Electron confinement / Journal articles

To see the other types of publications on this topic, follow the link: Electron confinement.

Journal articles on the topic 'Electron confinement'

Author: Grafiati

Published: 4 June 2021

Last updated: 18 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Electron confinement.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

ZHANG, X. M., X. SHEN, B. N. WAN, Z. W. WU, and J. FU. "Heat transport analysis of the improved confinement discharge with LHW in the HT-7 tokamak." Journal of Plasma Physics 76, no. 2 (December 15, 2009): 229–37. http://dx.doi.org/10.1017/s0022377809990390.

Full text

Abstract:

AbstractIn the HT-7 tokamak, heat transport analysis is carried out for the lower hybrid current drive (LHCD) experiments. Electrons and ions are coupled and good confinement can be obtained by properly optimizating LHCD and plasma parameters. Under the conditions that the plasma current is about 220 kA, the lower hybrid wave (LHW) power is about 300 kW and the central line-averaged density is about 1.5×1013 cm−3, lower hybrid wave power deposition is off-axis. Local transport analysis illustrated that both electron and ion thermal diffusivities are decreased during the LHW phase, and the electron internal transport barriers (eITBs) are formed while been accompanied by the ion internal transport barriers (iITBs) during LHW phase. Ions are heated by electron-ion collision in the region of the barriers although the ohmic power and the LHW power were absorbed by the electrons. Both electron temperature and ion temperature are increased during the LHW phase, and in the confinement region, the electron-to-ion temperature ratio, Te/Ti varies from 2.0 ~ 2.5 during OH phase to 1.3 ~ 1.6 during LHW injected into the plasma, which shows that electron confinement is not degraded by the electron–ion collisions meanwhile ions are also confined. The energy confinement is increased from 13 ms to 25 ms due to the formation of electron and ion internal transport barries after the LHW is injected into the plasma. LHW driven current and bootstrap current contribute to 60% of the total current.

APA, Harvard, Vancouver, ISO, and other styles

2

Bhattacharyya, S., J. K. Saha, and T. K. Mukhopadhyay. "Two-electron atoms under spherical confinement." Journal of Physics: Conference Series 488, no. 15 (April 10, 2014): 152012. http://dx.doi.org/10.1088/1742-6596/488/15/152012.

Full text

APA, Harvard, Vancouver, ISO, and other styles

3

Li, T. C., J. F. Drake, and M. Swisdak. "CORONAL ELECTRON CONFINEMENT BY DOUBLE LAYERS." Astrophysical Journal 778, no. 2 (November 12, 2013): 144. http://dx.doi.org/10.1088/0004-637x/778/2/144.

Full text

APA, Harvard, Vancouver, ISO, and other styles

4

Goeckner, M. J., G. D. Earle, L. J. Overzet, and J. C. Maynard. "Electron confinement on magnetic field lines." IEEE Transactions on Plasma Science 33, no. 2 (April 2005): 436–37. http://dx.doi.org/10.1109/tps.2005.844960.

Full text

APA, Harvard, Vancouver, ISO, and other styles

5

Gariglio, S., A. Fête, and J.-M. Triscone. "Electron confinement at the LaAlO3/SrTiO3interface." Journal of Physics: Condensed Matter 27, no. 28 (June 23, 2015): 283201. http://dx.doi.org/10.1088/0953-8984/27/28/283201.

Full text

APA, Harvard, Vancouver, ISO, and other styles

6

Smith, T. P. "Quantum confinement in few-electron systems." Surface Science 229, no. 1-3 (April 1990): 239–44. http://dx.doi.org/10.1016/0039-6028(90)90879-d.

Full text

APA, Harvard, Vancouver, ISO, and other styles

7

Okazaki, K., and Y. Teraoka. "Electron-self-confinement in a three-dimensional electron gas." Journal of Magnetism and Magnetic Materials 226-230 (May 2001): 256–57. http://dx.doi.org/10.1016/s0304-8853(00)00654-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

8

Jin Sung Kang, Jin Sung Kang, Ju-An Yoon Ju-An Yoon, Seung Il Yoo Seung Il Yoo, Jin Wook Kim Jin Wook Kim, Bo Mi Lee Bo Mi Lee, Hyeong Hwa Yu Hyeong Hwa Yu, C. B. Moon C.-B. Moon, and Woo Young Kim Woo Young Kim. "Highly efficient blue organic light-emitting diodes using various hole and electron confinement layers." Chinese Optics Letters 13, no. 3 (2015): 032301–32304. http://dx.doi.org/10.3788/col201513.032301.

Full text

APA, Harvard, Vancouver, ISO, and other styles

9

Okazaki, K., and Y. Teraoka. "Electron-self-confinement in an electron gas with an intermediate electron density." Solid State Communications 114, no. 4 (March 2000): 215–18. http://dx.doi.org/10.1016/s0038-1098(00)00026-0.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Matulis, A., J. O. Fjærestad, and K. A. Chao. "Electron Interaction in a Quantum Dot with Hard Wall Confinement Potential." International Journal of Modern Physics B 11, no. 08 (March 30, 1997): 1035–49. http://dx.doi.org/10.1142/s0217979297000538.

Full text

Abstract:

We have investigated the electron interaction energy in a circular quantum dot with hard confinement potential, using a renormalized perturbation series (RPS) approach which interpolates between the perturbation solutions in the weak interaction regime and the asymptotic solutions in the strong interaction regime. The RPS is based on the scaling property of the Hamiltonian, and the numerical procedure is not complicated even when the number of electrons in the dot is not very small. The accuracy of the RPS calculation has been tested with two electrons in a dot, where the RPS ground state energy agrees with the exact numerical solution within 1% relative error. We have performed the RPS calculation for three and four electrons in the dot, from which the Coulomb charging energy is derived. The results suggest the potential application of pillar-shaped quantum dots for single-electron tunneling transistors operating at higher temperatures.

APA, Harvard, Vancouver, ISO, and other styles

11

Curatola, G., and G. Iannaccone. "Quantum confinement in silicon-germanium electron waveguides." Nanotechnology 13, no. 3 (May 9, 2002): 267–73. http://dx.doi.org/10.1088/0957-4484/13/3/306.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Stallard, W. G., A. S. Plaut, S. Thoms, M. C. Holland, S. P. Beaumont, C. R. Stanley, and M. Hopkinson. "Strain-induced quantum confinement of electron gases." Physica E: Low-dimensional Systems and Nanostructures 2, no. 1-4 (July 1998): 272–76. http://dx.doi.org/10.1016/s1386-9477(98)00057-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Chin, Ren-Chu, and Shih-Hai Li. "Confinement Constraints of Electron Cyclotron Heating Models." Fusion Technology 26, no. 3P1 (November 1994): 255–60. http://dx.doi.org/10.13182/fst94-a30329.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Veuillen, J.-Y., P. Mallet, L. Magaud, and S. Pons. "Electron confinement effects on Ni-based nanostructures." Journal of Physics: Condensed Matter 15, no. 34 (August 15, 2003): S2547—S2574. http://dx.doi.org/10.1088/0953-8984/15/34/306.

Full text

APA, Harvard, Vancouver, ISO, and other styles

15

Coke, Maddison L., Oscar W. Kennedy, James T. Sagar, and Paul A. Warburton. "Electron confinement at diffuse ZnMgO/ZnO interfaces." APL Materials 5, no. 1 (January 2017): 016102. http://dx.doi.org/10.1063/1.4973669.

Full text

APA, Harvard, Vancouver, ISO, and other styles

16

Molle, Alessandro, Alessio Lamperti, Davide Rotta, Marco Fanciulli, Eugenio Cinquanta, and Carlo Grazianetti. "Electron Confinement at the Si/MoS2Heterosheet Interface." Advanced Materials Interfaces 3, no. 10 (February 23, 2016): 1500619. http://dx.doi.org/10.1002/admi.201500619.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

Robertson, Scott, and Bob Walch. "Electron confinement in an annular Penning trap." Physics of Plasmas 7, no. 6 (June 2000): 2340–47. http://dx.doi.org/10.1063/1.874070.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Ming-hai, Liu, Wang Shan-cai, and Hu Xi-wei. "Ions confinement in electron beam ion trap." Acta Physica Sinica (Overseas Edition) 5, no. 3 (March 1996): 176–84. http://dx.doi.org/10.1088/1004-423x/5/3/003.

Full text

APA, Harvard, Vancouver, ISO, and other styles

19

Kramer, Peter. "Energy gauge and electron confinement in quasicrystals." Journal of Physics A: Mathematical and General 31, no. 2 (January 16, 1998): 743–56. http://dx.doi.org/10.1088/0305-4470/31/2/029.

Full text

APA, Harvard, Vancouver, ISO, and other styles

20

Coudert, François-Xavier, and Anne Boutin. "Confinement effect on the hydrated electron behaviour." Chemical Physics Letters 428, no. 1-3 (September 2006): 68–72. http://dx.doi.org/10.1016/j.cplett.2006.07.023.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Sizov, Robert A. "The “Naked Electron”." Applied Science and Innovative Research 3, no. 4 (October 24, 2019): p257. http://dx.doi.org/10.22158/asir.v3n4p257.

Full text

Abstract:

The true sources of magnetic field, i.e., real magnetic poles (magnetic charges), turned out to be unrecognized in physical science due to the special conditions of their confinement in atoms and substance which are cardinally different from the confinement of electrons. In addition, Maxwell’s vicious electromagnetic concept in which electrons moving in atoms and substance were declared as direct sources of the magnetic field played a very negative role in story with confession of real magnetic charges. This concept was the result of the superficial and exceptionally erroneous impression of the Great Physicist from the Oersted’s famous experience. However, the world scientific community accepted this erroneous impression as the ultimate truth. Herewith true magnetic poles which are the real structural components of atoms and substances, were “buried alive”. Along with magnetic charges were ignored in physics and of such real spinor particles as true antielectrons, which were replaced by electron vacancies or Dirac holes. It is important to note that the above-recognized unacknowledged, spinor particles, together with electrons, constitute the electromagnetic atomic shells. The world electromagnetic theory, while ignoring the three fundamental particles, was forced to rely solely on the electron, which in modifications of various theoretical surrogates (magnetic moments, electronic vacancies and others) was forced to answer both for itself and for three unrecognized fundamental particles, that is, for two magnetic charges (magneton and antimagneton) and a real antielectron.

APA, Harvard, Vancouver, ISO, and other styles

22

Chen, Geng Shun, Rui Hong Tong, and An Hua Zhang. "Magnetic Confinement of Plasmas Generated by Coaxial Twinned Electron Cyclotron Resonance (ECR) Discharge." Advanced Materials Research 413 (December 2011): 18–23. http://dx.doi.org/10.4028/www.scientific.net/amr.413.18.

Full text

Abstract:

Effects of the magnetic field on confinement of the coaxial twined ECR plasmas were studied using the Lanmuir probe diagnostic technique. Under the magnetic-mirror confinement, the plasma density was quite high in the vicinity of the axis of the ECR sources but it decreased rapidly with increasing radial distance; while under the cusped field confinement, the density was lower but uniform. The trend was similar for the electron temperature and the plasma potential. This property may be utilized in materials processes to meet different requirements. Key words: Electron cyclotron resonance (ECR), Plasma, Magnetic confinement, The cusped field confinement.PACS: 52.80.Pi, 52.55.-s, 52.70.-m

APA, Harvard, Vancouver, ISO, and other styles

23

MISHRA, M. K., and A. PHUKAN. "Electron heating in a multi-dipole plasma by electrostatic plugging." Journal of Plasma Physics 79, no. 2 (September 12, 2012): 153–61. http://dx.doi.org/10.1017/s0022377812000815.

Full text

Abstract:

AbstractThe effect of the electrostatic confinement potential on electron number densities and electron temperatures under bi-Maxwellian approximation for electron distribution function has been studied in an electrostatically plugged multi-dipole argon plasma system. Electrostatic plugging is implemented by biasing the electrically isolated multi-dipole magnetic cage. Experimental results show that the density ratio (N) and temperature ratio (T) of the two electron groups can be controlled by changing the voltage applied to the magnetic cage. Out of the two groups of electrons, one group has the cold electrons, which are plasma electrons produced by the ionization process, and the other group has the hot primary electrons.

APA, Harvard, Vancouver, ISO, and other styles

24

Hayat, A., S. Bashir, M. S. Rafique, R. Ahmed, M. Akram, K. Mahmood, A. Zaheer, T. Hussain, and A. Dawood. "Spatial confinement effects employed by metallic blocker and Ar gas pressures on laser-induced breakdown spectroscopy and surface modifications of laser-irradiated Mg." Laser and Particle Beams 35, no. 2 (April 3, 2017): 313–25. http://dx.doi.org/10.1017/s0263034617000210.

Full text

Abstract:

AbstractSpatial confinement effects on plasma parameters and surface morphology of laser-ablated Mg are studied by introducing a metallic blocker as well as argon (Ar) gas at different pressures. Nd: YAG laser at various fluences ranging from 7 to 28 J/cm2 was employed to generate Mg plasma. Confinement effects offered by metallic blocker are investigated by placing the blocker at different distances of 6, 8, and 10 mm from the target surface; whereas spatial confinement offered by environmental gas is explored under four different pressures of 5, 10, 20, and 50 Torr. Laser-induced breakdown spectroscopy analysis revealed that both plasma parameters, that is, excitation temperature and electron number density initially are strongly dependent upon both pressures of environmental gases and distances of blockers. The maximum electron temperature of Mg plasma is achieved at Ar gas pressure of 20 Torr, whereas maximum electron number density is achieved at 50 Torr. It is also observed that spatial confinement offered by metallic blocker is responsible for the significant enhancement of both electron temperature and electron number density of Mg plasma. Maximum values of electron temperature and electron number density without blocker are 8335 K and 2.4 × 1016 cm−3, respectively, whereas these values are enhanced to 12,200 K and 4 × 1016 cm−3 in the presence of blocker. Physical mechanisms responsible for the enhancement of Mg plasma parameters are plasma compression, confinement and pronounced collisional excitations due to reflection of shock waves. Scanning electron microscope analysis was performed to explore the surface morphology of laser-ablated Mg. It reveals the formation of ripples and channels that become more distinct in the presence of blocker due to plasma confinement. The optimum combination of blocker distance, fluence and Ar pressure can identify the suitable conditions for defining the role of plasma parameters for surface structuring.

APA, Harvard, Vancouver, ISO, and other styles

25

Shimozuma, T., M. Yokoyama, K. Ida, Y. Takeiri, S. Kubo, S. Murakami, A. Wakasa, et al. "Improvement of Plasma Core Confinement Via Electron-Root Realization by Strongly Focused ECRH in LHD: Core Electron-Root Confinement." Fusion Science and Technology 58, no. 1 (August 2010): 38–45. http://dx.doi.org/10.13182/fst10-a10791.

Full text

APA, Harvard, Vancouver, ISO, and other styles

26

Khurgin, Jacob B. "Ultimate limit of field confinement by surface plasmon polaritons." Faraday Discussions 178 (2015): 109–22. http://dx.doi.org/10.1039/c4fd00193a.

Full text

Abstract:

We show that electric field confinement in surface plasmon polaritons propagating at metal/dielectric interfaces enhances the loss due to Landau damping, which effectively limits the degree of confinement itself. We prove that Landau damping, and associated with it surface collision damping, follow directly from the Lindhard formula for the dielectric constant of a free electron gas. Furthermore, we demonstrate that even if all of the conventional loss mechanisms, caused by phonons, electron–electron interactions, and interface roughness scattering, were eliminated, the maximum attainable degree of confinement and the loss accompanying it would not change significantly compared to the best existing plasmonic materials, such as silver.

APA, Harvard, Vancouver, ISO, and other styles

27

Kuntová, Z., M. C. Tringides, S. M. Binz, M. Hupalo, and Z. Chvoj. "Controlling nucleation rates in nanostructures with electron confinement." Surface Science 604, no. 5-6 (March 2010): 519–22. http://dx.doi.org/10.1016/j.susc.2009.12.015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

28

Rej, D. J., G. A. Barnes, M. H. Baron, R. E. Chrien, S. Okada, R. E. Siemon, D. P. Taggart, M. Tuszewski, R. B. Webster, and B. L. Wright. "Electron energy confinement in field reversed configuration plasmas." Nuclear Fusion 30, no. 6 (June 1, 1990): 1087–94. http://dx.doi.org/10.1088/0029-5515/30/6/010.

Full text

APA, Harvard, Vancouver, ISO, and other styles

29

Kirkwood, Robert, I. H. Hutchinson, S. C. Luckhardt, M. Porkolab, and J. P. Squire. "Measurement of suprathermal electron confinement by cyclotron transmission." Physics of Fluids B: Plasma Physics 2, no. 6 (June 1990): 1421–26. http://dx.doi.org/10.1063/1.859566.

Full text

APA, Harvard, Vancouver, ISO, and other styles

30

Yokoyama, M., H. Maaßberg, C. D. Beidler, V. Tribaldos, K. Ida, T. Estrada, F. Castejon, et al. "Core electron-root confinement (CERC) in helical plasmas." Nuclear Fusion 47, no. 9 (August 29, 2007): 1213–19. http://dx.doi.org/10.1088/0029-5515/47/9/018.

Full text

APA, Harvard, Vancouver, ISO, and other styles

31

Mueller, Filipp, Georgios Konstantaras, Paul C. Spruijtenburg, Wilfred G. van der Wiel, and Floris A. Zwanenburg. "Electron–Hole Confinement Symmetry in Silicon Quantum Dots." Nano Letters 15, no. 8 (July 10, 2015): 5336–41. http://dx.doi.org/10.1021/acs.nanolett.5b01706.

Full text

APA, Harvard, Vancouver, ISO, and other styles

32

Perez, Florent, Sylvie Zanier, Sophie Hameau, Bernard Jusserand, Yves Guldner, Antonella Cavanna, Laurence Ferlazzo-Manin, and Bernard Etienne. "Lateral electron confinement in narrow deep etched wires." Applied Physics Letters 72, no. 11 (March 16, 1998): 1368–70. http://dx.doi.org/10.1063/1.121057.

Full text

APA, Harvard, Vancouver, ISO, and other styles

33

Wang, Tahui, T. H. Hsieh, and T. W. Chen. "Quantum confinement effects on low‐dimensional electron mobility." Journal of Applied Physics 74, no. 1 (July 1993): 426–30. http://dx.doi.org/10.1063/1.354127.

Full text

APA, Harvard, Vancouver, ISO, and other styles

34

Otero, Roberto, Amadeo L. Vázquez de Parga, and Rodolfo Miranda. "Can electron confinement barriers be determined by STM?" Surface Science 447, no. 1-3 (February 2000): 143–48. http://dx.doi.org/10.1016/s0039-6028(99)01156-5.

Full text

APA, Harvard, Vancouver, ISO, and other styles

35

Heinz, F. O., A. Schenk, and W. Fichtner. "Conductance in single electron transistors with quantum confinement." physica status solidi (c), no. 4 (July 2003): 1309–12. http://dx.doi.org/10.1002/pssc.200303078.

Full text

APA, Harvard, Vancouver, ISO, and other styles

36

Saitoh, H., Z. Yoshida, J. Morikawa, Y. Yano, H. Hayashi, T. Mizushima, Y. Kawai, M. Kobayashi, and H. Mikami. "Confinement of electron plasma by levitating dipole magnet." Physics of Plasmas 17, no. 11 (November 2010): 112111. http://dx.doi.org/10.1063/1.3514207.

Full text

APA, Harvard, Vancouver, ISO, and other styles

37

Nakata, H., and T. Ohyama. "Magnetic confinement of electron-hole plasma in Ge." Physica B: Condensed Matter 201 (July 1994): 292–94. http://dx.doi.org/10.1016/0921-4526(94)91103-7.

Full text

APA, Harvard, Vancouver, ISO, and other styles

38

KRISHNA, PHANI MURALI, SOMA MUKHOPADHYAY, and ASHOK CHATTERJEE. "OPTICAL ABSORPTION IN QUANTUM DOTS." International Journal of Modern Physics B 16, no. 10 (April 20, 2002): 1489–97. http://dx.doi.org/10.1142/s0217979202010270.

Full text

Abstract:

The optical absorption behaviour of polar semiconductor quantum dots has been investigated in the strong confinement regime using the adiabatic approximation of Landau and Pekar. It has been shown that optical absorption coefficient becomes strongly size dependent below a certain value of the confinement length and also exhibits interesting crossing behaviour when studied as a function of the electron–phonon coupling constant for different values of the confinement length. It has furthermore been shown that the ratio of the one-phonon part of the oscillator strength to the zero-phonon contribution can be significantly large in a small quantum dot and can also exhibit an interesting minimum structure at certain value of the confinement length for intermediate electron–phonon coupling.

APA, Harvard, Vancouver, ISO, and other styles

39

Lao, Ka Un, Yan Yang, and Robert A. DiStasio. "Electron confinement meet electron delocalization: non-additivity and finite-size effects in the polarizabilities and dispersion coefficients of the fullerenes." Physical Chemistry Chemical Physics 23, no. 10 (2021): 5773–79. http://dx.doi.org/10.1039/d0cp05638c.

Full text

APA, Harvard, Vancouver, ISO, and other styles

40

TAKEIRI, Yasuhiko, Masayuki YOKOYAMA, Kenichi NAGAOKA, Katsumi IDA, Shin KUBO, Takashi SHIMOZUMA, Hisamichi FUNABA, et al. "Improvement of Ion Confinement in Core Electron-Root Confinement (CERC) Plasmas in Large Helical Device." Plasma and Fusion Research 3 (2008): S1031. http://dx.doi.org/10.1585/pfr.3.s1031.

Full text

APA, Harvard, Vancouver, ISO, and other styles

41

Gu, Yuqiu, Jinqing Yu, Weimin Zhou, Fengjuan Wu, Jian Wang, Hongjie Liu, Leifeng Cao, and Baohan Zhang. "Collimation of hot electron beams by external field from magnetic-flux compression." Laser and Particle Beams 31, no. 4 (August 20, 2013): 579–82. http://dx.doi.org/10.1017/s026303461300044x.

Full text

Abstract:

AbstractIn fast ignition of inertial confinement fusion, hot electron beam is considered to be an appropriate energy source for ignition. However, hot electrons are divergent as they are transporting in over-dense plasma. So collimating the hot electrons becomes one of the most important issues in fast ignition. A method to collimate hot electron beam by external magnetic field is proposed in this paper. The external field can be generated by compressing a seed magnetic field at the stage of laser-driven implosion. This method is confirmed by particle-in-cell simulations. The results show that hot electrons are well collimated by external magnetic field from magnetic-flux compression.

APA, Harvard, Vancouver, ISO, and other styles

42

Mondal, Santanu, K. D. Sen, and Jayanta K. Saha. "Structural properties of Na atom under impenetrable spatial confinement." Canadian Journal of Physics 99, no. 9 (September 2021): 754–63. http://dx.doi.org/10.1139/cjp-2020-0603.

Full text

Abstract:

The structural properties and radial distributions of the valence electron in different excited levels of Na atom (n = 3–5, l = 0–4; n and l being the principal and orbital angular momentum quantum numbers, respectively) under impenetrable spherical confinement have been studied, where the interaction between the frozen core and the valence electron is mimicked by a model potential available in the literature. The effect of the core on the valence electron has been investigated by estimating the structural properties of Na10+ ion under similar confinement. Scaled radial densities at the nucleus and related ratios are presented for a few excited states of the valence electron of Na atom and the corresponding analytic results have been tested numerically.

APA, Harvard, Vancouver, ISO, and other styles

43

DOLMATOV, V. K., J. P. CONNERADE, A. P. LAKSHMI, and S. T. MANSON. "SPECTRAL PROPERTIES OF CONFINED ATOMS." Surface Review and Letters 09, no. 01 (February 2002): 39–43. http://dx.doi.org/10.1142/s0218625x02001926.

Full text

Abstract:

The changes in energy and photoionization spectra of atoms upon confinement by a spherical environment are explored theoretically. Two kinds of confinement are considered: an endohedral confinement, such as inside the bucky-ball C 60, and an impenetrable spherical confinement of adjustable radius. We demonstrate modifications in the energy spectrum and electron correlation effects in confined atoms, the appearance, nature and origin of "confinement" resonances in photoionization spectra of such atoms, as well as new regularities in the periodic table for "compressed" atoms. These findings are of importance for basic and applied physics and chemistry of atoms, molecules, surfaces, etc.

APA, Harvard, Vancouver, ISO, and other styles

44

MARTINOLLI, E., D. BATANI, E. PERELLI-CIPPO, F. SCIANITTI, M. KOENIG, J. J. SANTOS, F. AMIRANOFF, et al. "Fast electron transport and heating in solid-density matter." Laser and Particle Beams 20, no. 2 (April 2002): 171–75. http://dx.doi.org/10.1017/s0263034602202037.

Full text

Abstract:

Two experiments have been performed to investigate heating by high-intensity laser-generated electrons, in the context of studies of the fast ignitor approach to inertial confinement fusion (ICF). A new spectrometer and layered targets have been used to detect Kα emission from aluminum heated by a fast electron beam. Results show that a temperature of about 40 eV is reached in solid density aluminum up to a depth of about 100 μm.

APA, Harvard, Vancouver, ISO, and other styles

45

SHIVAMOGGI, BHIMSEN K. "Collisionless magnetic reconnection dynamics with electron inertia and parallel electron compressibility." Journal of Plasma Physics 73, no. 6 (December 2007): 857–68. http://dx.doi.org/10.1017/s0022377806006313.

Full text

Abstract:

AbstractCollisionless magnetic reconnection dynamics is considered by including the effects of electron inertia as well as parallel electron compressibility. A fluid treatment is adopted for both electrons and ions. Collisionless plasma dynamics properties near a two-dimensional X-type magnetic neutral line in the steady state are explored. The effects of electron inertia and parallel electron compressibility on the hyperbolicity (or lack thereof) of the magnetic field lines in the neutral layer are discussed. A unified linear tearing-mode formulation incorporating both electron inertia and parallel electron compressibility is given. The parallel-electron-compressibility branch is shown to couple in general to the electron-inertia branch in the presence of resistivity. A sufficient condition for linear stability in the Lyapunov sense for steady states of this collisionless plasma system signifying current confinement is deduced. Bounds on the equilibrium current gradient are shown to constitute sufficient conditions for nonlinear stability in the Lyapunov sense for steady states via nonlinear bounds for a suitable perturbation norm.

APA, Harvard, Vancouver, ISO, and other styles

46

NOZARI, KOUROSH, and MAHYAR MADADI. "BANDGAP NARROWING IN NANO-WIRES." International Journal of Modern Physics C 17, no. 02 (February 2006): 167–85. http://dx.doi.org/10.1142/s0129183106009102.

Full text

Abstract:

In this paper we consider two different geometry of quasi one-dimensional semiconductors and calculate their exchange-correlation induced bandgap renormalization (BGR) as a function of the electron-hole plasma density and quantum wire width. Based on different fabrication scheme, we define suitable external confinement potential and then leading-order GW dynamical screening approximation is used in the calculation by treating electron–electron Coulomb interaction and electron-optical phonon interaction. Using a numerical scheme, screened Coulomb potential, probability of different states, profile of charge density and the values of the renormalized gap energy are calculated and the effects of variation of confinement potential width and temperature are studied.

APA, Harvard, Vancouver, ISO, and other styles

47

Punjabi, Alkesh, and George Vahala. "Effects of positive potential in the catastrophe theory study of the point model for bumpy tori." Journal of Plasma Physics 33, no. 1 (February 1985): 119–49. http://dx.doi.org/10.1017/s0022377800002361.

Full text

Abstract:

With positive ambipolar potential, ion non-resonant neoclassical transport leads to increased particle confinement times. In certain regimes of filling pressure, microwave powers (ECRH and ICRH) and positive potential, new folds can now emerge from previously degenerate equilibrium surfaces allowing for distinct C, T, and M modes of operation. A comparison in the equilibrium fold structure is also made between (i) equal particle and energy confinement times, and (ii) particle confinement times enhanced over the energy confinement time. The nonlinear time evolution of these point model equations is considered and confirms the delay convention occurrences at the fold edges. It is clearly seen that the time-asymptotic equilibrium state is very sensitive, not only to the values of the control parameters (neutral density, ambipolar electrostatic potential, electron and ion cyclotron power densities) but also to the initial conditions on the plasma density, and electron and ion temperatures.

APA, Harvard, Vancouver, ISO, and other styles

48

Wan, C. C., Ying Huang, and Hong Guo. "Dissipative Quantum Dynamics: The Role of the Lateral Confinement." International Journal of Modern Physics B 11, no. 29 (November 20, 1997): 3409–18. http://dx.doi.org/10.1142/s0217979297001672.

Full text

Abstract:

The dissipative quantum dynamics of electron transport in a two dimensional quantum wire is studied. The wire is modeled by a parabolic confining potential in one of the spatial directions. Quantum dissipation is provided by the electron coupling to a phonon bath using a simplified Fröhlich type model, and the problem is solved in closed form. We find that the lateral electron sub-bands give rise to a quasi-periodic behavior of a quantity which is essentially the transport impedance, and this leads to very different behavior of the electron drift velocity as compared to the case without lateral confinement.

APA, Harvard, Vancouver, ISO, and other styles

49

Sugihara, Yuki, Kazuyuki Uchida, and Atsushi Oshiyama. "Electron and Hole Confinement in Hetero-Crystalline SiC Superlattice." Journal of the Physical Society of Japan 84, no. 8 (August 15, 2015): 084709. http://dx.doi.org/10.7566/jpsj.84.084709.

Full text

APA, Harvard, Vancouver, ISO, and other styles

50

Nicolaescu, D., V. Filip, F. Okuyama, and J. Itoh. "Electron motion and confinement in the orbitip vacuum gauge." Ultramicroscopy 79, no. 1-4 (September 1999): 167–74. http://dx.doi.org/10.1016/s0304-3991(99)00066-2.

Full text

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!