Esdiad beam widths

W. Riedl; D. Menzel

doi:10.1016/0039-6028(89)90137-4

Esdiad beam widths

W. Riedl, D. Menzel

Chair of Experimental Physics

Technical University of Munich

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

In order to improve the understanding of the mechanisms leading to narrow ion beams in electronically stimulated desorption (ESDIAD: electron stimulated desorption ion angular distribution), the influences of surface temperature, coverage, primary energy of exciting electrons, azimuth, and isotope mass on the polar angle distributions of ions (O⁺, CO⁺) desorbed by electron impact from CO adsorbed on Ru(001) and Ni(110) have been studied. The results suggest that only part (one half to two thirds) of the observed widths is caused by thermal effects. Some conclusions about the general mechanisms of focused beam formation can also be drawn.

Original language	English
Pages (from-to)	494-516
Number of pages	23
Journal	Surface Science
Volume	207
Issue number	2-3
DOIs	https://doi.org/10.1016/0039-6028(89)90137-4
State	Published - 1 Jan 1989

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@article{e633d5b08b8c4ce7b5fda1872e3f3a4d,

title = "Esdiad beam widths",

abstract = "In order to improve the understanding of the mechanisms leading to narrow ion beams in electronically stimulated desorption (ESDIAD: electron stimulated desorption ion angular distribution), the influences of surface temperature, coverage, primary energy of exciting electrons, azimuth, and isotope mass on the polar angle distributions of ions (O+, CO+) desorbed by electron impact from CO adsorbed on Ru(001) and Ni(110) have been studied. The results suggest that only part (one half to two thirds) of the observed widths is caused by thermal effects. Some conclusions about the general mechanisms of focused beam formation can also be drawn.",

author = "W. Riedl and D. Menzel",

note = "Funding Information: We thank R. Jaeger for the permission to use his unpublished results. Valuable discussions with H. Miiller and a critical reading by N. Riisch are gratefully acknowledged. This work has been supported by the Deutsche Forschungsgemeinschaft through SFB 128.",

year = "1989",

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doi = "10.1016/0039-6028(89)90137-4",

language = "English",

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T1 - Esdiad beam widths

AU - Riedl, W.

AU - Menzel, D.

N1 - Funding Information: We thank R. Jaeger for the permission to use his unpublished results. Valuable discussions with H. Miiller and a critical reading by N. Riisch are gratefully acknowledged. This work has been supported by the Deutsche Forschungsgemeinschaft through SFB 128.

PY - 1989/1/1

Y1 - 1989/1/1

N2 - In order to improve the understanding of the mechanisms leading to narrow ion beams in electronically stimulated desorption (ESDIAD: electron stimulated desorption ion angular distribution), the influences of surface temperature, coverage, primary energy of exciting electrons, azimuth, and isotope mass on the polar angle distributions of ions (O+, CO+) desorbed by electron impact from CO adsorbed on Ru(001) and Ni(110) have been studied. The results suggest that only part (one half to two thirds) of the observed widths is caused by thermal effects. Some conclusions about the general mechanisms of focused beam formation can also be drawn.

AB - In order to improve the understanding of the mechanisms leading to narrow ion beams in electronically stimulated desorption (ESDIAD: electron stimulated desorption ion angular distribution), the influences of surface temperature, coverage, primary energy of exciting electrons, azimuth, and isotope mass on the polar angle distributions of ions (O+, CO+) desorbed by electron impact from CO adsorbed on Ru(001) and Ni(110) have been studied. The results suggest that only part (one half to two thirds) of the observed widths is caused by thermal effects. Some conclusions about the general mechanisms of focused beam formation can also be drawn.

UR - http://www.scopus.com/inward/record.url?scp=0011611794&partnerID=8YFLogxK

U2 - 10.1016/0039-6028(89)90137-4

DO - 10.1016/0039-6028(89)90137-4

M3 - Article

AN - SCOPUS:0011611794

SN - 0039-6028

VL - 207

SP - 494

EP - 516

JO - Surface Science

JF - Surface Science

IS - 2-3

ER -

Esdiad beam widths

Abstract

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