Spectroscopic Study of Radiation Effects in DMAAS:Cr Ferroelectrics

Abstract

This paper presents the results of investigations of the radiation effects in NH₂(CH₃)₂Al(SO₄)₂·6H₂O crystals doped with chromium. On the basis of the spectroscopic study it has been shown that comparatively low doses of radiation first of all cause a recharging of Cr³⁺ on Cr⁴⁺ 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 type of bonds.

Keywords:

• DMAAS
• radiation effect
• absorption spectra
• recharging
• phase transition
• transition metal

PACS numbers:

• 78.40
• 64.70
• 77.84
• 78.30
• S12