An in-depth investigation of the energy distribution of doubly charged ions emitted from a liquid metal alloy ion source

G. L.R. Mair; L. Bischoff; A. W.R. Mair; C. J. Aidinis; Th Ganetsos; C. A. Aleiev

doi:10.1088/0022-3727/35/9/101

An in-depth investigation of the energy distribution of doubly charged ions emitted from a liquid metal alloy ion source

G. L.R. Mair
, L. Bischoff
, A. W.R. Mair
, C. J. Aidinis
, Th Ganetsos
, C. A. Aleiev

National and Kapodistrian University of Athens
Helmholtz-Zentrum Dresden-Rossendorf
University of Manchester

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

3 Scopus citations

Abstract

We investigate the energy spread, ΔE_1/2, versus emission current, i, of the doubly charged ions emitted by a Au₇₇Ge₁₄Si₉ liquid metal alloy ion source. For the ionic species of main interest, namely Ge²⁺, two modes were found with regard to the dependence of ΔE_1/2 on i. In the first mode ΔE_1/2 ∝ i^0.3, and in the second ΔE_1/2 ∝ i. The difference is attributed to changes in the composition of the alloy during field evaporation. Au²⁺ and Si²⁺ were also found to obey a ΔE_1/2 ∝ i^0.3 law; in the case of Si²⁺ however, there is a deviation from this law at high currents.

Original language	English
Article number	101
Pages (from-to)	L33-L36
Journal	Journal of Physics D: Applied Physics
Volume	35
Issue number	9
DOIs	https://doi.org/10.1088/0022-3727/35/9/101
State	Published - 7 May 2002
Externally published	Yes

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title = "An in-depth investigation of the energy distribution of doubly charged ions emitted from a liquid metal alloy ion source",

abstract = "We investigate the energy spread, ΔE1/2, versus emission current, i, of the doubly charged ions emitted by a Au77Ge14Si9 liquid metal alloy ion source. For the ionic species of main interest, namely Ge2+, two modes were found with regard to the dependence of ΔE1/2 on i. In the first mode ΔE1/2 ∝ i0.3, and in the second ΔE1/2 ∝ i. The difference is attributed to changes in the composition of the alloy during field evaporation. Au2+ and Si2+ were also found to obey a ΔE1/2 ∝ i0.3 law; in the case of Si2+ however, there is a deviation from this law at high currents.",

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AU - Mair, G. L.R.

AU - Bischoff, L.

AU - Mair, A. W.R.

AU - Aidinis, C. J.

AU - Ganetsos, Th

AU - Aleiev, C. A.

PY - 2002/5/7

Y1 - 2002/5/7

N2 - We investigate the energy spread, ΔE1/2, versus emission current, i, of the doubly charged ions emitted by a Au77Ge14Si9 liquid metal alloy ion source. For the ionic species of main interest, namely Ge2+, two modes were found with regard to the dependence of ΔE1/2 on i. In the first mode ΔE1/2 ∝ i0.3, and in the second ΔE1/2 ∝ i. The difference is attributed to changes in the composition of the alloy during field evaporation. Au2+ and Si2+ were also found to obey a ΔE1/2 ∝ i0.3 law; in the case of Si2+ however, there is a deviation from this law at high currents.

AB - We investigate the energy spread, ΔE1/2, versus emission current, i, of the doubly charged ions emitted by a Au77Ge14Si9 liquid metal alloy ion source. For the ionic species of main interest, namely Ge2+, two modes were found with regard to the dependence of ΔE1/2 on i. In the first mode ΔE1/2 ∝ i0.3, and in the second ΔE1/2 ∝ i. The difference is attributed to changes in the composition of the alloy during field evaporation. Au2+ and Si2+ were also found to obey a ΔE1/2 ∝ i0.3 law; in the case of Si2+ however, there is a deviation from this law at high currents.

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U2 - 10.1088/0022-3727/35/9/101

DO - 10.1088/0022-3727/35/9/101

M3 - Article

AN - SCOPUS:0037035479

SN - 0022-3727

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SP - L33-L36

JO - Journal of Physics D: Applied Physics

JF - Journal of Physics D: Applied Physics

IS - 9

M1 - 101

ER -

An in-depth investigation of the energy distribution of doubly charged ions emitted from a liquid metal alloy ion source

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