Radiation Effects in DMAAS:Cr Ferroelectric Crystal
V. Kapustianik a , Z. Czapla b , Yu. Eliyachevskyy a , Yu. Korchak a , B. Kulyk a and V. Rudyk a
a Ferroics Physics Laboratory, Electronics Department Lviv I. Franko National University, Tarnavskogo st., 107, 79017 Lviv, Ukraine
b Institute of Experimental Physics, University of Wroc³aw, pl. M. Borna 9, 50-204 Wroc³aw, Poland
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Received: September 11, 2003
This paper presents the results of investigations of the radiation effects in NH 2 (CH 3 ) 2 Al(SO 4 ) 2 x6H 2 O crystals doped with chromium. On the basis of absorption spectroscopy and resonance Raman scattering study it has been shown that comparatively low doses of radiation first of all causes recharging of Cr 3+ on Cr 4+ ions. Besides, the processes of dehydrogenation and the changes in arrangement of the hydrogen bond network were observed. These changes are followed by distortion of the complexes bonded by such a type of bonds.
DOI: 10.12693/APhysPolA.104.571
PACS numbers: 78.40.Ha, 64.70.Kb, 77.84.--s, 78.30.Hv