Ferroelectric properties of lead zirconate-titanate (PZT) single crystals and lead magnesium-niobate (PMN) ceramics
Gasiak, Tatiana (2021)
Diplomityö
Gasiak, Tatiana
2021
School of Engineering Science, Laskennallinen tekniikka
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi-fe2021062139067
https://urn.fi/URN:NBN:fi-fe2021062139067
Tiivistelmä
The samples of Pb[Zr0.989Ti0.011]O3 (PZT 1.1) single crystal and 0.8Pb[Mg1/3Nb2/3]O3 - 0.2PbTiO3 (PMN PT20) ceramics were investigated. PMN PT20 ceramics was measured with the dielectric spectroscopy method. Relaxation peak was detected that refers to PMN PT20 phase transition. Both samples were measured with piezoresponse force microscopy (PFM). Polarization experiments were provided. The PZT crystal showed a different piezoelectric response at different areas of the sample surface, which corresponds to its inhomogeneity.