Capacitors with nonlinear characteristics based on stabilized zirconia with built-in gold nanoparticles

Resonant Activation of Resistance Switching in Memristors Based on YSZ Films with Au Nanoparticles

“…It points to some HF dielectric loss having a resonant character (the maximum loss at f ~ 100 kHz). Earlier, a nonlinear capacitance (with some hysteresis) of the prototype memristors based on the YSZ:NP-Au nanocomposite films was revealed by HF C-V spectroscopy [22]. The nonlinear capacitance was explained by trapping of electrons by the Au NPs.…”

Structural Dependent Eu3+ Luminescence, Photoelectric and Hysteresis Effects in Porous Strontium Titanate

“…The frequency dependence of the hysteresis loop area indicates the presence of fast and slow The nonlinearity of the C-V characteristics is caused by the presence of electrically active deep energy levels in the band gap, created by various defects. As the capacity growth is observed only with one positive polarity, electrons are trapped by the defect states [22]. The nonlinear dependence of the capacitance on voltage applied can be associated with the formation of potential wells in the surface layer of nanostructured grains due to the porosity.…”

“…For example, porous barium titanate has a lower dielectric constant [21], and the Curie temperature increased up to 350 • C as compared to the bulk material [18]. Hysteresis of capacitance-voltage (C-V) characteristics of bulk monocrystralline SrTiO 3 with Ni and Au electrodes was investigated before and after irradiation in [22,23], where C-V hysteresis was considered from the point of the drift of nonequilibrium charge carriers in the crystal. The hysteresis effects were observed not only in dielectric properties but also in magnetization loops [24,25].…”

Fabrication of Metal Nanoparticle Arrays in the ZrO2(Y), HfO2(Y), and GeOx Films by Magnetron Sputtering

“…In [14,15], we have reported the fabrication of dense Au NP arrays inside the ZrO 2 (Y) films using layer-by-layer Magnetron Sputtering followed by annealing. The uniform Au NPs of 1 to 3 nm in diameter (subject to the initial Au film thickness) were arranged in a single sheet inside the ZrO 2 (Y) films.…”

“…The Au nanoparticle (NP) arrays in the SiO 2 matrix have been studied most comprehensively to date, mainly, due to poor solubility and diffusivity of Au in SiO 2 [12] that favors the coagulation of the Au films into the NPs. On the other hand, yttria-stabilized zirconia ZrO 2 (Y) and hafnia HfO 2 (Y) [4,13] as well as germanium dioxide GeO 2 [14] are promising oxide matrices for various applications. However, the structure and the optical properties of the MNP arrays in the nanocomposite films formed by Magnetron Sputtering from the above materials have been studied insufficiently to date.…”