Effect of an electric field on the electrocaloric response of ferroelectrics

Effect of an electric field on the electrocaloric

response of ferroelectrics

Hongbo Liu

【期刊名称】《中国物理：英文版》 【年(卷),期】2024(027)012

【摘要】The electrocaloric effect of the model ferroelectric BaTiO3 was investigated using phenomenological theory. The results indicate that the applied electric field strength is a key factor for the induced electrocaloric response and there are two distinguishing electrocaloric responses. When a moderate electric field is applied, the electrocaloric temperature variation is small but the electrocaloric strength is high. In contrast, the electrocaloric temperature variation is large but electrocaloric strength is low when a very high electric field is applied. These results are consistent with the experimental observations on BaTiO3 based bulk and thin film ferroelectric materials. 【总页数】4页(544-547) 【关键词】

【作者】Hongbo Liu

【作者单位】School of Materials Engineering, Shanghai University of Engineering Science, Shanghai 201620, China 【正文语种】英文 【中图分类】