Choi, Woo-Jin |  Sun, Jeong-Woo... -  《Journal of the European Ceramic Society》 - 2025,45(7) - 117242～ - 共6页

摘要：Enhanced temperature stability and dielectric permittivity of piezoelectric materials are desirable for ultrasound- based transducer applications because the self-heating of devices during operation d...

关键词： Piezoceramics |  PIN-PMN-PT |  Morphotropic phase boundary |  Dielectric permittivity

Sun, Jeong-Woo |  Zate, Temesgen Tadey...... -  《Scripta materialia》 - 2025,258 - 116519～ - 共6页

摘要：Alternating current (AC) poling has been found to be more effective in optimizing the performance of [001]- oriented rhombohedral relaxor-PbTiO3 single crystals. However, these materials undergo ferro...

关键词： Ferroelectrics |  PMN-PT single crystals |  Poling |  Phase transformation |  Depolarization

Sun, Jeong-Woo |  Choi, Woo-Jin... -  《Journal of the Korean Ceramic Society》 - 2024,61(5) - 854～860 - 共7页

摘要：This study investigates the electrical properties of Pb(Mg1/3Nb2/3)-PbTiO3 (PMN-PT) single crystals subjected to corona poling (CorP) compared to direct current poling (DCP) and alternating current po...

关键词： Corona poling |  Polarization retention |  Depolarization temperature |  Coercive field |  CERAMICS |  FILMS

Sun, Jeong-Woo |  Xu, Zhengze... -  《Applied physics letters》 - 2025,126(8) - 082904.1～082904.6 - 共6页

摘要：Understanding the depolarization of ferroelectric materials caused by external stimuli is critical for maintaining the aligned polarization states. Although thermal depolarization in poled materials i...