Kinetic energy distributions of sputtered neutral aluminum clusters: Al--Al[sub 6]
Abstract
Neutral aluminum clusters sputtered from polycrystalline aluminum were analyzed by laser postionization time-of-flight (TOF) mass spectrometry. The kinetic energy distributions of Al through Al[sub 6] were measured by a neutrals time-of-flight technique. The interpretation of laser postionization TOF data to extract velocity and energy distributions is presented. The aluminum cluster distributions are qualitatively similar to previous copper cluster distribution measurements from our laboratory. In contrast to the steep high energy tails predicted by the single- or multiple- collision models, the measured cluster distributions have high energy power law dependences in the range of E[sup [minus]3] to E[sup [minus]4.5]. Correlated collision models may explain the substantial abundance of energetic clusters that are observed in these experiments. Possible influences of cluster fragmentation on the distributions are discussed.
- Authors:
-
- Argonne National Lab., IL (United States)
- Trinity Univ., San Antonio, TX (United States). Dept. of Physics
- Texas Univ., Austin, TX (United States). Dept. of Chemistry and Biochemistry
- Publication Date:
- Research Org.:
- Argonne National Lab., IL (United States)
- Sponsoring Org.:
- USDOE; National Science Foundation (NSF); USDOE, Washington, DC (United States); National Science Foundation, Washington, DC (United States)
- OSTI Identifier:
- 6829007
- Report Number(s):
- ANL/CHM/CP-76899; CONF-9208147-2
ON: DE93004815
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Conference
- Resource Relation:
- Conference: Symposium on sputtering, Copenhagen (Denmark), 30 Aug - 4 Sep 1992
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ALUMINIUM; SPUTTERING; ATOMIC CLUSTERS; ARGON IONS; ION BEAMS; KEV RANGE 01-10; BEAMS; CHARGED PARTICLES; ELEMENTS; ENERGY RANGE; IONS; KEV RANGE; METALS; 360100* - Metals & Alloys; 665300 - Interactions Between Beams & Condensed Matter- (1992-)
Citation Formats
Coon, S R, Calaway, W F, Pellin, M J, Curlee, G A, and White, J M. Kinetic energy distributions of sputtered neutral aluminum clusters: Al--Al[sub 6]. United States: N. p., 1992.
Web.
Coon, S R, Calaway, W F, Pellin, M J, Curlee, G A, & White, J M. Kinetic energy distributions of sputtered neutral aluminum clusters: Al--Al[sub 6]. United States.
Coon, S R, Calaway, W F, Pellin, M J, Curlee, G A, and White, J M. 1992.
"Kinetic energy distributions of sputtered neutral aluminum clusters: Al--Al[sub 6]". United States. https://www.osti.gov/servlets/purl/6829007.
@article{osti_6829007,
title = {Kinetic energy distributions of sputtered neutral aluminum clusters: Al--Al[sub 6]},
author = {Coon, S R and Calaway, W F and Pellin, M J and Curlee, G A and White, J M},
abstractNote = {Neutral aluminum clusters sputtered from polycrystalline aluminum were analyzed by laser postionization time-of-flight (TOF) mass spectrometry. The kinetic energy distributions of Al through Al[sub 6] were measured by a neutrals time-of-flight technique. The interpretation of laser postionization TOF data to extract velocity and energy distributions is presented. The aluminum cluster distributions are qualitatively similar to previous copper cluster distribution measurements from our laboratory. In contrast to the steep high energy tails predicted by the single- or multiple- collision models, the measured cluster distributions have high energy power law dependences in the range of E[sup [minus]3] to E[sup [minus]4.5]. Correlated collision models may explain the substantial abundance of energetic clusters that are observed in these experiments. Possible influences of cluster fragmentation on the distributions are discussed.},
doi = {},
url = {https://www.osti.gov/biblio/6829007},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Jan 01 00:00:00 EST 1992},
month = {Wed Jan 01 00:00:00 EST 1992}
}