S. I. Shevtsova, A. V. Pavlenko, A. T. Kozakov, L. A. Reznichenko,
A. V. Nikol’skii, and L. A. Shilkina
Research Institute of Physics, Southern Federal University, pr. Stachki 194, Rostov-on-Don, 344090 Russia
e-mail: snigela@yandex.ru
Received May 14, 2013
Abstract—A polarization state is formed with an electron beam in ceramic samples of pure lead ferroniobate
(PFN) and PFN modified to a superstoichiometric composition at the stage of synthesis by adding 1 wt % lith-
ium carbonate (PFNL) and 1 wt % of magnesia (PFNM). It is shown that in the case of PFNL, polarization by
an electron beam is more efficient than the conventional method of “hot” polarization. Reasons for the observed
effects, including enhanced electron emission from local irradiated areas on the surface of the ceramics, are dis-
cussed.
DOI: 10.1134/S1063784214030220
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