Abstract:
The wake potential induced by heavy ions in a free-electron gas is used as the interacting potential in the binary collisional formalism (BCF). Detailed results are presented for the stopping power, energy-loss distributions, mean free path, and electron angular distributions. The results were compared with those obtained with the Yukawa central potential and the dielectric formalism on equal footing. A link between the dielectric and binary collision formalisms was established. The BCF was found to be very sensitive with respect to the dielectric function used in the wake potential. Dressed projectiles are also examined, and their distributions compared. The binary formalism is found to be well behaved. At high impact velocities, as expected, it provides only the collisional term, missing the excitation of collective mode. © 1998 The American Physical Society.
Registro:
Documento: |
Artículo
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Título: | Collisional stopping considering the induced potential created by ions in a free-electron gas |
Autor: | Arbó, D.G.; Miraglia, J.E. |
Filiación: | Instituto de Astronomía y Física del Espacio, Consejo Nacional de Investigaciones Científicas y Técnicas, Casilla de Correos 67, Sucursal 28, Buenos Aires, 1428, Argentina Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Argentina Universidad Nacional de La Matanza, Argentina
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Año: | 1998
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Volumen: | 58
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Número: | 4
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Página de inicio: | 2970
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Página de fin: | 2977
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DOI: |
http://dx.doi.org/10.1103/PhysRevA.58.2970 |
Título revista: | Physical Review A - Atomic, Molecular, and Optical Physics
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Título revista abreviado: | Phys Rev A
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ISSN: | 10502947
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_10502947_v58_n4_p2970_Arbo |
Referencias:
- Lindhard, J., (1954) K. Dan. Vidensk. Selsk. Mat. Fys. Medd., 28, p. 8. , KDVSAK
- Lindhard, J., Winther, A., (1964) K. Dan. Vidensk. Selsk. Mat. Fys. Medd., 34, p. 4. , KDVSAK
- Fetter, A.L., Walecka, J.D., (1971) Quantum Theory of Many-Particle Systems, , McGraw-Hill, New York
- Echenique, P.M., Flores, F., Ritchie, R.H., (1990) Solid State Phys., 43, p. 229. , SSPHAE
- Noziére, P., (1964) Theory of Interaction Fermi Systems, , Benjamin, New York
- Martiarena, M.L., Sanchez, E.A., Grizzi, O., Ponce, V.H., (1996) Phys. Rev. A, 53, p. 895. , PLRAAN
- García de Abajo, F., (1995) Nucl. Instrum. Methods Phys. Res. B, 98, p. 442. , NIMBEU
- Reinhold, C.O., Burgdörfer, J., (1997) Phys. Rev. A, 55, p. 450. , PLRAAN
- Oddershede, J., Sabin, J., (1984) At. Data, 31, p. 275. , ATDAAE
- Ritchie, R.H., (1959) Phys. Rev., 114, p. 644. , PHRVAO
- Sigmund, P., (1982) Phys. Rev. A, 26, p. 2497. , PLRAAN
- Fermi, E., Teller, E., (1947) Phys. Rev. A, 72, p. 399. , PLRAAN
- Lencinas, S., Burgdörfer, J., Kemmler, J., Heil, O., Kroneberger, K., Keller, N., Rothard, H., Groeneveld, K.O., (1990) Phys. Rev. A, 41, p. 1435. , PLRAAN
- Arnau, A., Peñalba, M., Echenique, P.M., Flores, F., Ritchie, R.H., (1990) Phys. Rev. Lett., 65, p. 1024. , PRLTAO
- Lifschitz, A.F., Arista, N.R., (1998) Phys. Rev. A, 57, p. 200. , PLRAAN
- Peñalba, M., Arnau, A., Echenique, P.M., Flores, F., Ritchie, R.H., (1992) Europhys. Lett., 19, p. 45. , EULEEJ
- Nagy, I., Echenique, P.M., (1993) Phys. Rev. A, 47, p. 3050. , PLRAAN
- Brandt, W., Ritchie, R., (1976) Nucl. Instrum. Methods, 132, p. 43. , NUIMAL
- de Ferrariis, L., Arista, N.R., (1984) Phys. Rev. A, 29, p. 2145. , PLRAAN
- A more complete expression is (Formula presented) satisfying the dynamic screening for (Formula presented) and the Debye wave number for (Formula presented) This simple form is very closed to the self-consistent value calculated in Ref; Chevallier, M., Clouvas, A., de Castro Faria, N.V., Farizon Mazuy, B., Gaillard, M.J., Poizat, J.C., Remillieux, J., Désesquelles, J., (1990) Phys. Rev. A, 41, p. 1738. , PLRAAN
- Bönig, L., Schönhammer, K., (1989) Phys. Rev. B, 39, p. 7413. , PRBMDO
- Echenique, P.M., Ritchie, R.H., Brandt, W., (1979) Phys. Rev. B, 20, p. 2567. , PRBMDO
- Mermin, N.D., (1970) Phys. Rev. B, 1, p. 2362. , PLRBAQ
- Bonham, R.A., Kohl, D.A., (1976) J. Chem. Phys., 45, p. 2471. , JCPSA6
- If (Formula presented) were required to be unitary in everywhere, it would mean that (Formula presented) in Eq. (4) is changed to (Formula presented) where (Formula presented). This would imply the relaxation of the energy conservation in the Fermi golden rule to permit two-particle final states which do not conserve the energy (of course the whole many-electron system must conserve the energy); Arista, N.R., (1994) Phys. Rev. A, 49, p. 1885. , PLRAAN
- Ishiwari, R., Shiomi-Tsuda, N., Sakamoto, N., (1988) Nucl. Instrum. Methods Phys. Res. B, 31, p. 503. , NIMBEU
- Sigmund, P., Johannssen, K., (1985) Nucl. Instrum. Methods Phys. Res. B, 6, p. 486. , NIMBEU
- Reinhold, C.O., Schultz, R.D., Olson, R.E., (1990) J. Phys. B, 23, p. L591. , JPAPEH
Citas:
---------- APA ----------
Arbó, D.G. & Miraglia, J.E.
(1998)
. Collisional stopping considering the induced potential created by ions in a free-electron gas. Physical Review A - Atomic, Molecular, and Optical Physics, 58(4), 2970-2977.
http://dx.doi.org/10.1103/PhysRevA.58.2970---------- CHICAGO ----------
Arbó, D.G., Miraglia, J.E.
"Collisional stopping considering the induced potential created by ions in a free-electron gas"
. Physical Review A - Atomic, Molecular, and Optical Physics 58, no. 4
(1998) : 2970-2977.
http://dx.doi.org/10.1103/PhysRevA.58.2970---------- MLA ----------
Arbó, D.G., Miraglia, J.E.
"Collisional stopping considering the induced potential created by ions in a free-electron gas"
. Physical Review A - Atomic, Molecular, and Optical Physics, vol. 58, no. 4, 1998, pp. 2970-2977.
http://dx.doi.org/10.1103/PhysRevA.58.2970---------- VANCOUVER ----------
Arbó, D.G., Miraglia, J.E. Collisional stopping considering the induced potential created by ions in a free-electron gas. Phys Rev A. 1998;58(4):2970-2977.
http://dx.doi.org/10.1103/PhysRevA.58.2970