Effect of gamma irradiation on the dielectric properties of (CH3)(2)NH2Ga(SO4)(2) center dot 6H(2)O crystals in the vicinity of the ferroelectric transition

Authors
Sheleg, AU Iodkovskaya, KV Kurilovich, NF Pupkevich, PA
Citation
Au. Sheleg et al., Effect of gamma irradiation on the dielectric properties of (CH3)(2)NH2Ga(SO4)(2) center dot 6H(2)O crystals in the vicinity of the ferroelectric transition, INORG MATER, 37(2), 2001, pp. 189-193
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
INORGANIC MATERIALS
ISSN journal
00201685 → ACNP
Volume
37
Issue
2
Year of publication
2001
Pages
189 - 193
Database
ISI
SICI code
0020-1685(200102)37:2<189:EOGIOT>2.0.ZU;2-S
Abstract
The effect of gamma irradiation on the dielectric permittivity and loss tan gent of (CH3)(2)NH2Ga(SO4)(2). 6H(2)O crystals was studied near the ferroel ectric transition at different frequencies. Irradiation was found to sharpl y reduce epsilon and tan delta at gamma doses below 5 x 10(7) R. At higher doses, epsilon and tan delta level off. With increasing gamma dose, the fer roelectric transition shifts to lower temperatures, irrespective of frequen cy.