Chemiluminescence in Molecular Beams. Electronic Excitation of Alkali Atoms in Exchange Reactions of Vibrationally Excited Alkali Halides

1966 ◽  
Vol 44 (8) ◽  
pp. 3010-3018 ◽  
Author(s):  
M. C. Moulton ◽  
D. R. Herschbach
Keyword(s):  
Electronic Excitation ◽  
Alkali Halides ◽  
Molecular Beams ◽  
Exchange Reactions ◽  
Vibrationally Excited ◽  
Alkali Atoms

Atomic and molecular emission following fracture of alkali halides: A dislocation driven process

1991 ◽  
Vol 6 (1) ◽  
pp. 112-125 ◽  
Author(s):  
J.T. Dickinson ◽  
L.C. Jensen ◽  
S.C. Langford ◽  
J.P. Hirth
Keyword(s):  
Heat Treatment ◽  
Molecular Species ◽  
Neutral Particle ◽  
Alkali Halides ◽  
Time Intervals ◽  
Neutral Species ◽  
Free Surfaces ◽  
Alkali Atoms ◽  
Fracture Event ◽  
Long Time

During and following fracture of a number of materials, the emission of photons, electrons, ± ions, and neutral species are observed; these emissions are collectively known as fracto-emission. In this work, we present measurements of the neutral particle emission following fracture of two single crystal fcc alkali halides: NaCl and LiF. We observe no measurable emission attributable to release during the fracture event itself. However, after relatively long time intervals of ∼0.5–250 ms, we observe rapid bursts of alkali atoms, as well as molecular species which include NaCl and (LiF)n where n = 1,2,3. Bursts of alkali containing species also occur during loading prior to fracture and for unloaded specimens during heat treatment. We argue that these bursts are due to energetic emergence (“popout”) of dislocations at free surfaces.

Electronic excitation and electron capture processes in the collision between Rb atoms and Na ions by crossed molecular beams

1997 ◽  
Vol 281 (1-3) ◽  
pp. 74-80 ◽  
Author(s):  
T. Romero ◽  
J. de Andrés ◽  
J. Sogas ◽  
J.M. Bocanegra ◽  
M. Albertı́ ◽  
...  
Keyword(s):  
Electron Capture ◽  
Electronic Excitation ◽  
Molecular Beams ◽  
Crossed Molecular Beams ◽  
Na Ions

Collisional ionization of alkali atoms by vibrationally excited N2

1974 ◽  
Vol 27 (3) ◽  
pp. i
Author(s):  
R. Haug ◽  
G. Rappenecker ◽  
C. Schmidt
Keyword(s):  
Vibrationally Excited ◽  
Alkali Atoms ◽  
Collisional Ionization
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