Results 291 to 300 of about 71,116 (338)
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The Surface Photoelectric Effect
Physical Review, 1949An expression is derived for the photoelectric current produced at the surface of a metal, the conduction electrons being supposed free and the potential barrier of arbitrary shape. The validity of the common assumption that the current arising from conduction electrons of a particular momentum can be expressed as the product of an excitation function ...
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1991
We are aware of light (the term “light” is used here to include a wide range of electromagnetic radiations)—or perhaps we postulate with conviction the existence of a physical entity that we chose to call light—because we observe the effects when it interacts with, or is absorbed by, electrons, atoms, and matter.
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We are aware of light (the term “light” is used here to include a wide range of electromagnetic radiations)—or perhaps we postulate with conviction the existence of a physical entity that we chose to call light—because we observe the effects when it interacts with, or is absorbed by, electrons, atoms, and matter.
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The Surface Photoelectric Effect
Physical Review, 1950Theoretical expressions describing the photoelectric emission from a metal surface are derived, taking account of the dependence, established by Bardeen, of the effective surface barrier on the momentum of the impinging electron, due to exchange and correlation forces in the interior. This generalization reduces by a significant factor the magnitude of
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Photoelectric effect on ferromagnetics
Journal of Magnetism and Magnetic Materials, 1980Abstract We have developed a theory for photoelectric effect on ferromagnetics in which, making use of the “s”-“d” exchange interaction and of the hybridation between “s” and “d” electrons, we obtain a term in M s , saturation magnetization and one other in M 2 s .
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Photoelectric Effects in Semiconductors
Electronics and Power, 1965S. M. Ryvkin New York: Consultants Bureau Enterprises Inc. 1964. Pp. xv + 402. Price $22.50 This substantial book is very welcome. It treats in an authoritative way the whole range of photo-electric phenomena in semiconductors.
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International Journal of Biological Macromolecules, 1980
Abstract The lifetime of photogenerated carriers (using pulsating light in the infrared region) and the effect of magnetic field on photoconductivity in bone and its two major components have been estimated. Lifetime was found to be in the order of microseconds.
W.H. Andrabi, D.V. Rai, J. Behari
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Abstract The lifetime of photogenerated carriers (using pulsating light in the infrared region) and the effect of magnetic field on photoconductivity in bone and its two major components have been estimated. Lifetime was found to be in the order of microseconds.
W.H. Andrabi, D.V. Rai, J. Behari
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Analysis of the Photoelectric Effect
1996Einstein undertook the analysis of the photoelectric effect in the light of the quantum hypothesis and showed that it explained accurately the results of experiments on this phenomenon, which were not consistent with the predictions of classical (nonquantum) electromagnetic theory.
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The Photoelectric Effect of the Deuteron
1991Theoretical cross sections for the dissociation of the deuteron by absorption of γ-rays, the Chadwick-Goldhaber effect, have been calculated, by using a square well law of potential, both of the ordinary type and of the Majorana type. The curves of cross section as a function of energy for various assumed widths are given.
G. Breit, Edward U. Condon, J. R. Stehn
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The Photoelectric Effect (1902)
1999Planck’s explanation of blackbody radiation in terms of quantized energy packets was a major blow to classical thermodynamics and, broadly, to the entire field of physics. A second blow to the classical concept of radiation arose from studies of the photoelectric effect (PE). The term refers to the following phenomenon: Within a chunk of metal, not all
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The Surface Photoelectric Effect
Physical Review, 1937The probability of ejection of an electron in the surface photo-effect is expressed in terms of a function of the potential barrier, the energy of the electron after ejection, and the frequency. This function is dominated, for low energies of ejection, by the transmission coefficient of the surface.
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