Influence of the dynamic polarization effect on the angular distributions of protons channeled in double-wall carbon nanotubes
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2007
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We investigate the influence of the effect of dynamic polarization of the carbon atom valence electrons on the angular distributions of protons channeled in (6, 4)"(11, 9) double-wall carbon nanotubes. The proton velocities are 3 and 5 a.u., corresponding to energies of 0.223 and 0.621 MeV, while the nanotube lengths are 0.1-0.2 mu m. The interaction between a proton and the nanotube atoms is described by the Doyle-Turner potential whereas the image force acting on the proton is calculated by a two-dimensional hydrodynamic model of the dynamic response of the nanotube valence electrons. The angular distributions of channeled protons are generated by a computer simulation method using the numerical solution of the proton equations of motion in the transverse plane. Our analysis shows that the image force induces additional extrema in the proton deflection functions, giving rise to the rainbow maxima in the angular distributions that do not exist when the proton is subject to the atomic ...force only. These maxima could be used to probe the total interaction potential in proton channeling in nanotubes.
Ključne reči:
nanotubes / channeling / dynamic polarization / rainbowsIzvor:
Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 2007, 256, 1, 131-136Napomena:
- 22nd International Conference on Atomic Collisions in Solids, Jul 21-26, 2006, Tech Univ Berlin, Berlin, Germany
DOI: 10.1016/j.nimb.2006.11.102
ISSN: 0168-583X
WoS: 000245959300028
Scopus: 2-s2.0-33947136858
Institucija/grupa
VinčaTY - JOUR AU - Borka, Duško AU - Petrović, Srđan M. AU - Nešković, Nebojša B. AU - Mowbray, Duncan J. AU - Mišković, Zoran L. PY - 2007 UR - https://vinar.vin.bg.ac.rs/handle/123456789/6650 AB - We investigate the influence of the effect of dynamic polarization of the carbon atom valence electrons on the angular distributions of protons channeled in (6, 4)"(11, 9) double-wall carbon nanotubes. The proton velocities are 3 and 5 a.u., corresponding to energies of 0.223 and 0.621 MeV, while the nanotube lengths are 0.1-0.2 mu m. The interaction between a proton and the nanotube atoms is described by the Doyle-Turner potential whereas the image force acting on the proton is calculated by a two-dimensional hydrodynamic model of the dynamic response of the nanotube valence electrons. The angular distributions of channeled protons are generated by a computer simulation method using the numerical solution of the proton equations of motion in the transverse plane. Our analysis shows that the image force induces additional extrema in the proton deflection functions, giving rise to the rainbow maxima in the angular distributions that do not exist when the proton is subject to the atomic force only. These maxima could be used to probe the total interaction potential in proton channeling in nanotubes. T2 - Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms T1 - Influence of the dynamic polarization effect on the angular distributions of protons channeled in double-wall carbon nanotubes VL - 256 IS - 1 SP - 131 EP - 136 DO - 10.1016/j.nimb.2006.11.102 ER -
@article{ author = "Borka, Duško and Petrović, Srđan M. and Nešković, Nebojša B. and Mowbray, Duncan J. and Mišković, Zoran L.", year = "2007", abstract = "We investigate the influence of the effect of dynamic polarization of the carbon atom valence electrons on the angular distributions of protons channeled in (6, 4)"(11, 9) double-wall carbon nanotubes. The proton velocities are 3 and 5 a.u., corresponding to energies of 0.223 and 0.621 MeV, while the nanotube lengths are 0.1-0.2 mu m. The interaction between a proton and the nanotube atoms is described by the Doyle-Turner potential whereas the image force acting on the proton is calculated by a two-dimensional hydrodynamic model of the dynamic response of the nanotube valence electrons. The angular distributions of channeled protons are generated by a computer simulation method using the numerical solution of the proton equations of motion in the transverse plane. Our analysis shows that the image force induces additional extrema in the proton deflection functions, giving rise to the rainbow maxima in the angular distributions that do not exist when the proton is subject to the atomic force only. These maxima could be used to probe the total interaction potential in proton channeling in nanotubes.", journal = "Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms", title = "Influence of the dynamic polarization effect on the angular distributions of protons channeled in double-wall carbon nanotubes", volume = "256", number = "1", pages = "131-136", doi = "10.1016/j.nimb.2006.11.102" }
Borka, D., Petrović, S. M., Nešković, N. B., Mowbray, D. J.,& Mišković, Z. L.. (2007). Influence of the dynamic polarization effect on the angular distributions of protons channeled in double-wall carbon nanotubes. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 256(1), 131-136. https://doi.org/10.1016/j.nimb.2006.11.102
Borka D, Petrović SM, Nešković NB, Mowbray DJ, Mišković ZL. Influence of the dynamic polarization effect on the angular distributions of protons channeled in double-wall carbon nanotubes. in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms. 2007;256(1):131-136. doi:10.1016/j.nimb.2006.11.102 .
Borka, Duško, Petrović, Srđan M., Nešković, Nebojša B., Mowbray, Duncan J., Mišković, Zoran L., "Influence of the dynamic polarization effect on the angular distributions of protons channeled in double-wall carbon nanotubes" in Nuclear Instruments and Methods in Physics Research. Section B: Beam Interactions with Materials and Atoms, 256, no. 1 (2007):131-136, https://doi.org/10.1016/j.nimb.2006.11.102 . .