Low temperature - irradiation effect on KC1:Eu(2+) crystals

H. Opyrchł, K. D. Nierzewski, B. Macalik

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3 Scopus citations


The formation of color centers at LNT (measured after warming to RT) in {A figure is presented} - irradiated KC1 crystals doped with Eu(2+) ions in a wide concentration range is studied by optical absorption, emission and the ITC method. No effect of post-irradiation warming up to RT on Eu(2+)-dipole concentration is observed. The ITC measurements reveal the drastic decrease of concentration of isolated europium dipoles induced by LNT irradiation. Moreover, the relationship between F center and Eu(2+) dipoles is different than that predicted by the theory {divides}8{divides}. The results obtained are explained by radiation induced aggregation of Eu(2+) dipoles into small clusters at LNT.

Original languageEnglish (US)
Pages (from-to)783-787
Number of pages5
JournalSolid State Communications
Issue number10
StatePublished - Sep 1989
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • General Chemistry
  • Condensed Matter Physics
  • Materials Chemistry


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