Investigation of polarization switching processes in 0.8PMN-0.2PT single crystal in a temperature range from 100 K to 300 K.

Autor: Vakulenko, A. F., Vakhrushev, S. B., Filimonov, A. V.
Předmět:
Zdroj: Ferroelectrics; 2019, Vol. 542 Issue 1, p77-84, 8p
Abstrakt: Ferroelectric hysteresis loops were measured and the temperature evolution of the coercive field traced in [110]-oriented 0.8Pb(Mb1/3Nb2/3)O3–0.2PbTiO3 single crystal in the temperature range from 120 to 300 K at frequencies from 2 to 50 Hz. It was found that the coercive field rised with decreasing temperature in power-law manner at all frequencies. Temperature-dependent hysteresis model was used for approximation of acquired coercive field-temperature dependences. It was shown that nanoscale ferroelectric domains could be created at PMN-20PT surface by voltage pulses applied between the tip of atomic force microscope and bottom electrode at temperatures as low as 100 K. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index