Model of ferroelectric fatigue due to defect/domain interactions

Dielectric properties of vanadium doped barium titanate synthesized via high-energy ball milling

“…The influence of the vanadium addition on the dielectric properties of strontium titanate and strontium bismuth niobate was investigated by Liu et al [21], Bandyopadhyay et al [22] and Wu et al [23]. According to Nogucki et al [24] and Zeng et al [25] Based on the researches [27][28][29][30] it was found that besides of the presence of the modifier in the form of vanadium ions, the appropriate size of grains (≈1 µm) and the uniform distribution of the grain size are extremely important to obtain BaTiO 3 ceramics characterized by the high dielectric permittivity at room temperature (ε ≈ 3500). Hence, the choice of a method for producing ceramics, which determines the morphology and the microstructure of grains is very important.…”

Thickness profiles through fatigued bulk ceramic lead zirconate titanate

“…[8][9][10][11][12][13][14][15][16][17][18][19][20] Due to the large market shares anticipated in fuel injection systems and continuous development of ferroelectric memories, a good understanding of the underlying effects remains an important issue to be solved as underlined by the large number of publications already devoted to this subject. Overall, fatigue yields a loss of switchable polarization and certain offsets irrespective of device geometry.…”

“…Overall, fatigue yields a loss of switchable polarization and certain offsets irrespective of device geometry. 4,16 It depends on the loading conditions and the particular ferroelectric and electrode materials whether offsets 2,4,7,21 or the loss of switchable polarization [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19] is more pronounced. The former is most common for unipolar loading in actuators, the latter in bipolar fatigued films.…”

Polarization recovery in lead zirconate titanate thin films deposited on nanosheets-buffered Si (001)

“…In general, fatigue is explained as a manifestation of the accumulation of oxygen vacancies at the electrode/ferroelectric film interface during the switching cycles and pinning of the domain walls by these vacancies. [11][12][13][14][15] Understanding the role of these two contributions to fatigue behavior is quite intriguing and highly desirable in order to improve the performance of PZT films. Fatigue has been reported mostly in PZT films with Pt electrodes where a sharp decay in switchable polarization occurs within 10 8 cycles of polarization switching.…”