NDLI: Temperature dependence of the intensity of phonon-free luminescence lines of Rb$_{3}$UO$_{2}$F$

Content Provider	Springer Nature Link
Author	Pokatashkin, V. I. Syt’ko, V. V. Umreiko, D. S.
Copyright Year	2000
Abstract	We have investigated the behavior of the intensity of phonon-free lines appearing in the luminescence spectra of Rb$_{3}$UO$_{2}$F$_{5}$ crystals in the 4.2–40 K range due to a pure electron transition and its vibrational recurrences with the frequency of fully symmetrical stretching vibrations of the uranyl ion. It is shown that the temperature dependence of the total integrated intensity of these phonon-free lines, I$_{Σ}$, can be described using a model of configuration coordinates of an impurity center with one local vibration. An empirical expression has been obtained for the dependence I$_{Σ}$ = I$_{Σ}$(T) in the form of the product I$_{Σ}$(T) = I$_{0}$(T)S$_{Σ}$(T), where the first factor describes the temperature dependence of the integrated intensity of the pure electron transition line and the second can be approximated by an exponential function of the Stokes parameter.
Starting Page	175
Ending Page	179
Page Count	5
File Format	PDF
ISSN	00219037
Journal	Journal of Applied Spectroscopy
Volume Number	67
Issue Number	1
e-ISSN	15738647
Language	English
Publisher	Springer US
Publisher Date	2000-01-01
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	uranyl phonon-free line intensity temperature dependence Analytical Chemistry Atomic and Molecular Structure and Spectra
Content Type	Text
Resource Type	Article
Subject	Spectroscopy Condensed Matter Physics

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