(111)-Oriented Pb(Zr0.52Ti0.48)O3 thin film on Pt(111)/Si substrate using CoFe2O4 nano-seed layer by pulsed laser deposition

Magnetic field-dependent polarization of (111)-oriented PZT–Co ferrite nanobilayer: Effect of Co ferrite composition

“…In this work, the CFO and PZT films were deposited based on our optimum growth conditions [16][17][18][19][20]. The SEM cross section image of PZT/Co 0.8 Fe 2.2 O 4 bilayer thin films is shown in Fig.…”

“…In order to find the in-plane relation between films and Pt(111) underlayer, the φ-scan was taken, in which uniform intensity along 360°indicates the random in-plane orientation in our samples. Perfect (111)-orientation growth of CFO on Pt(111) and PZT on CFO(111) were discussed in details elsewhere [16][17][18][19] based on surface and interface energy minimization as well as similarity between {lll} planes of spinel and perovskite structures. As can be seen in Fig.…”

“…4. It is worth to mention that the PZT single layer film was deposited on 7 nmthick Co 0.8 Fe 2.2 O 4 seed layered Pt/Si substrate [19] under same condition with bilayer film. As can be seen, PZT/Co 0.8 Fe 2.2 O 4 bilayer film has larger P-E curves, with higher saturation polarization (P s ), remanent polarization (P r ) and coercive field (E c ) than those of the PZT single layer thin film.…”

“…The PZT and CFO films were deposited on commercial Pt(111) À 150 nm/Ti À 10 nm/SiO 2 À 300 nm/Si (100) [16][17][18][19][20][21]. A KrF excimer laser (248 nm wavelength and 23 ns pulse width, Lambda Physics) was used for ablating the target with energy density of about 2 J/cm 2 .The laser repetition rate was selected as 5 and 10 Hz for PZT and CFO deposition, respectively.…”

Study of (111)-oriented PZT thin films prepared by a modified sol–gel method

“…Ferroelectric thin films have been of great interest for many years for their excellent electrical properties to be applied to ferroelectric non-volatile memory, dynamic access memory, infrared sensor, energy harvesting and microactuator for MEMS [1][2][3][4][5]. Ferroelectricity means that in some dielectric crystals, crystal lattice structure makes the center of gravity of the positive charge and negative charge on the misalignment, and the electric dipole moment appears, so it makes the crystals have spontaneous polarization.…”