Cluster ion emission in the interaction of slow highly charged ions with surfaces

被引：36

作者：

Schenkel, T ^{[1
]}

Barnes, AV ^{[1
]}

Hamza, AV ^{[1
]}

Schneider, DH ^{[1
]}

机构：

[1] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94551 USA

来源：

EUROPEAN PHYSICAL JOURNAL D | 1998年 / 1卷 / 03期

关键词：

D O I：

10.1007/s100530050096

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Cluster ion emission from a variety of surfaces upon impact of highly charged ions is investigated by time-of-flight secondary ion mass spectrometry. The yield of cluster ions as a function of cluster size for SiO2 and C-84 surface follow a power law decline with exponent approaching the -2 limit of the "equilibrium': and "shock wave" cluster emission models. While the decline of the cluster ion emission with cluster size is an exponential decay for highly oriented pyrolytic graphite upon Th70+ impact, the decline is more gradual than for Cs1+ impact, such that at C-16 the relative cluster yield is 1000 times higher.

引用

页码：297 / 302

页数：6

共 28 条

[1] SPUTTERED METAL CLUSTER IONS - UNIMOLECULAR DECOMPOSITION AND COLLISION-INDUCED FRAGMENTATION [J].

BEGEMANN, W ;

DREIHOFER, S ;

MEIWESBROER, KH ;

LUTZ, HO .

ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS, 1986, 3 (2-3) :183-188

[2] A MONTE-CARLO COMPUTER-PROGRAM FOR THE TRANSPORT OF ENERGETIC IONS IN AMORPHOUS TARGETS [J].

BIERSACK, JP ;

HAGGMARK, LG .

NUCLEAR INSTRUMENTS & METHODS, 1980, 174 (1-2) :257-269

[3] SHOCK-WAVE MECHANISM FOR CLUSTER EMISSION AND ORGANIC-MOLECULE DESORPTION UNDER HEAVY-ION BOMBARDMENT [J].

BITENSKY, IS ;

PARILIS, ES .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1987, 21 (01) :26-36

[4]

BRIERE MA, 1995, P SIMS MUNST OCT, V10

[5] NEW FINDINGS ON THE SPUTTERING OF NEUTRAL METAL-CLUSTERS [J].

COON, SR ;

CALAWAY, WF ;

PELLIN, MJ ;

WHITE, JM .

SURFACE SCIENCE, 1993, 298 (01) :161-172

[6]

Cowan R. D., 1981, The theory of atomic structure and spectra, V3

[7] TIME-OF-FLIGHT MEASUREMENTS OF CESIUM-IODIDE CLUSTER IONS [J].

ENS, W ;

BEAVIS, R ;

STANDING, KG .

PHYSICAL REVIEW LETTERS, 1983, 50 (01) :27-30

[8] COMPUTER EXPERIMENTS ON MOLECULAR EJECTION FROM AN AMORPHOUS SOLID - COMPARISON TO AN ANALYTIC CONTINUUM MECHANICAL MODEL [J].

FENYO, D ;

JOHNSON, RE .

PHYSICAL REVIEW B, 1992, 46 (09) :5090-5099

[9]

GERHARD W, 1975, Z PHYS B CON MAT, V22, P31, DOI 10.1007/BF01325457

[10] A SEARCH FOR DOUBLY-CHARGED NEGATIVE CLUSTER IONS IN SPUTTERING [J].

GNASER, H ;

OECHSNER, H .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1993, 82 (04) :518-521

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