A. B. Kozyrev, A. G. Altynnikov, A. G. Gagarin, M. M. Gaidukov, “Effect of UV radiation on slow relaxation processes in ferroelectric thin-film capacitors”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 2011, Volume 37, Issue 12,Pages <nobr>1

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Effect of UV radiation on slow relaxation processes in ferroelectric thin-film capacitors

A. B. Kozyrev, A. G. Altynnikov, A. G. Gagarin, M. M. Gaidukov

Saint Petersburg Electrotechnical University "LETI"

Abstract: The influence of UV radiation with wavelengths of about $\lambda$ = 340 nm and power within 0.001–0.15 mW on the suppression of slow relaxation of residual polarization in ferroelectric capacitors based on thin (Ba, Sr)TiO$_3$ (BSTO) films in a paraelectric state has been studied. Experimental data on the behavior of capacitance relaxation time and conduction current in ferroelectric capacitors under the action of UV radiation are presented. A mechanism of relaxation with a characteristic time on the order of 1 s is found that is not affected by UV radiation.

Received: 28.02.2011