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Electrocaloric effect in antiferroelectric PbZrO 3 thin films
Author(s) -
Parui Jayanta,
Krupanidhi S. B.
Publication year - 2008
Publication title -
physica status solidi (rrl) – rapid research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.786
H-Index - 68
eISSN - 1862-6270
pISSN - 1862-6254
DOI - 10.1002/pssr.200802128
Subject(s) - antiferroelectricity , materials science , hysteresis , thin film , phase transition , electrocaloric effect , atmospheric temperature range , substrate (aquarium) , dielectric , pyroelectricity , phase (matter) , analytical chemistry (journal) , condensed matter physics , ferroelectricity , thermodynamics , chemistry , nanotechnology , optoelectronics , chromatography , physics , organic chemistry , oceanography , geology
Antiferroelectric PbZrO 3 thin films have been deposited on Pt(111)/Ti/SiO 2 /Si substrate by polymer modified sol–gel route. Temperature dependent P – E hysteresis loops have been measured at 51 MV/m within a temperature range of 40 °C to 330 °C. The maximum electrocaloric effect ∼0.224 × 10 –6 K mV –1 has been observed near the dielectric phase transition temperature (235 °C) of the thin films. The electrocaloric effect and its strong temperature dependence have been attributed to nearly first‐order phase transition. (© 2008 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)