Excitation of electrons from an Al surface by grazing-angle-incident fast heavy ions

A. Koyama, Y. Sasa, H. Ishikawa, A. Misu, K. Ishii, T. Iitaka, Y. H. Ohtsuki, and M. Uda
Phys. Rev. Lett. 65, 3156 – Published 17 December 1990
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Abstract

Measurements were made, at various emission angles, of energy spectra of electrons from Al induced by grazing-angle-incident ions of N6+, Ar12+, and Xe27+ with equal velocities corresponding to 0.98 MeV/amu. A new line which could not be explained by any of the hitherto identified mechanisms was observed at an energy obviously larger than that of an electron with a velocity equal to the projectile. The projectile and emission angle dependencies of the line are consistent with the dynamic image potential acceleration mechanism.

  • Received 14 June 1990

DOI:https://doi.org/10.1103/PhysRevLett.65.3156

©1990 American Physical Society

Authors & Affiliations

A. Koyama and Y. Sasa

  • The Institute of Physical and Chemical Research, Hirosawa 2-1, Wako-shi, Saitama 351-01, Japan

H. Ishikawa and A. Misu

  • Science University of Tokyo, Kagurazaka 1-3, Shinjuku-ku, Tokyo 162, Japan

K. Ishii

  • Tohoku University, Aramaki, Aoba, Sendai-shi, Miyagi 980, Japan

T. Iitaka, Y. H. Ohtsuki, and M. Uda

  • Waseda University, Ookubo 3-4-1, Shinjuku-ku, Tokyo 169, Japan

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Vol. 65, Iss. 25 — 17 December 1990

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