DOI: 10.1063/1.1734433. Trapping and Energy Transfer in Atomic Collisions with a Crystal Surface. II. Impurities

Trapping and Energy Transfer in Atomic Collisions with a Crystal Surface. II. Impurities

10.1063/1.1734433

Crossref journal-article

AIP Publishing

The Journal of Chemical Physics (317)

Abstract

The influence of surface impurities and internal impurities on (1) atomic condensation on a solid, (2) equilibration of the newly captured atom with the solid, and (3) the accommodation coefficient, are examined through calculations with a one-dimensional semi-infinite analog in the harmonic approximation. The general equation for the semi-infinite lattice (arbitrary composition) and impinging gas atom are specialized to (1) a pure lattice with a surface impurity (variable mass and bonding) and (2) a pure lattice with a defective third atom (variable mass and bonding). For the surface impurity: a decrease in coupling K1 decreases the condensation efficiency. Decreasing either the mass M1 or K1 decreases the rate of thermalization of a captured atom. There is a maximum in the condensation efficiency when M1 is varied. Light surface atoms do increase the accommodation coefficient. For the internal impurity: a weakening of impurity bonding decreases both trapping efficiency and rate of thermalization. Light impurities decrease the condensation efficiency, but increase the thermalization rate. The effect of the internal impurity on the accommodation coefficient is negligible.

Bibliography

McCarroll, B. (1963). Trapping and Energy Transfer in Atomic Collisions with a Crystal Surface. II. Impurities. The Journal of Chemical Physics, 39(5), 1317â1326.

Authors 1

Bruce McCarroll (first)

References 34 Referenced 37

{'key': '2024020821531969900_r1'}
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{'key': '2024020821531969900_r3', 'first-page': '445', 'volume': 'A152', 'year': '1935', 'journal-title': 'Proc. Roy. Soc. (London)'} / Proc. Roy. Soc. (London) (1935)
{'key': '2024020821531969900_r3a', 'first-page': '464', 'volume': 'A152', 'year': '1935', 'journal-title': 'Proc. R. Soc. London'} / Proc. R. Soc. London (1935)
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{'key': '2024020821531969900_r13', 'volume': '14', 'year': '1960', 'journal-title': 'J. Phys. Chem. Solids'} / J. Phys. Chem. Solids (1960)
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Dates

Type	When
Created	20 years, 7 months ago (Jan. 5, 2005, 10:57 p.m.)
Deposited	1 year, 6 months ago (Feb. 8, 2024, 4:53 p.m.)
Indexed	1 year, 6 months ago (Feb. 10, 2024, 3:56 a.m.)
Issued	62 years ago (Sept. 1, 1963)
Published	62 years ago (Sept. 1, 1963)
Published Print	62 years ago (Sept. 1, 1963)

Funders 0

None

BibTeX

@article{McCarroll_1963, title={Trapping and Energy Transfer in Atomic Collisions with a Crystal Surface. II. Impurities}, volume={39}, ISSN={1089-7690}, url={http://dx.doi.org/10.1063/1.1734433}, DOI={10.1063/1.1734433}, number={5}, journal={The Journal of Chemical Physics}, publisher={AIP Publishing}, author={McCarroll, Bruce}, year={1963}, month=sep, pages={1317–1326} }

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