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Temperature dependence of the Na+n optical response

✍ Scribed by Th. Reiners; W. Orlik; Ch. Ellert; M. Schmidt; H. Haberland

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
558 KB
Volume
215
Category
Article
ISSN
0009-2614

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✦ Synopsis

Photoabsorption cross sections were measured for Na,+ , n=9,21, and 41 at two temperatures, a low one at T= 130 K, and a high one with T> 300 K. A large, unexpected temperature effect is observed. The single, broad peaks observed at high temperature become narrower at 130 K for n = 2 1 and 4 1. For Na,? a splitting into two peaks separated by 275 meV is observed. For n = 2 1 and 41 a temperature dependent shoulder appears on the blue side of the main absorption.

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