caa a22 4500 463227638 CHVBK 20180405153232.0 cr unu---uuuuu 170326e20071201xx s 000 0 eng 10.1007/s10853-006-1305-z doi (NATIONALLICENCE)springer-10.1007/s10853-006-1305-z Study on dielectric ageing behaviour of antiferroelectric (Pb1− x Ba x )ZrO3 (0≤ x ≤0.10) ceramics [Elektronische Daten] [Bhadra Pokharel, Dhananjai Pandey] Ageing phenomena on dielectric constant and dielectric losses of pure and compositionally modified PbZrO3 by Ba2+ ions are presented both in antiferrolelectric and ferroelectric phases. It is shown that the room temperature stable antiferroelectric phase of the samples gets inhibited on cooling after a heating cycle. The phase recovers from metastable ferroelectric phase on long-term ageing at room temperature. The antiferroelectric (Pb1−x Ba x )ZrO3 system having higher internal stress has a great driving force for higher ageing rate. It is also shown that the ageing process is more pronounced if the sample is thermally activated and the room temperature ageing leads to linear dependence of dielectric constant and dielectric losses upon logarithmic of time. It is proposed that the decrease in dielectric constant with time is due to the motion of domain walls coming from the domain nucleation as well as the stress relaxation. Springer Science+Business Media, LLC, 2007 Pokharel Bhadra Department of Physics, Institute of Engineering Pulchowk, Pulchowk Campus, Lalitpur, Nepal aut Pandey Dhananjai School of Materials Science and Technology, IT, Banaras Hindu University, Varanasi, India aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/24(2007-12-01), 10239-10244 0022-2461 42:24<10239 2007 42 10853 https://doi.org/10.1007/s10853-006-1305-z text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-1305-z text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Pokharel Bhadra Department of Physics, Institute of Engineering Pulchowk, Pulchowk Campus, Lalitpur, Nepal aut NATIONALLICENCE 700 1- Pandey Dhananjai School of Materials Science and Technology, IT, Banaras Hindu University, Varanasi, India aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/24(2007-12-01), 10239-10244 0022-2461 42:24<10239 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer