期刊
JOURNAL OF APPLIED PHYSICS
卷 108, 期 10, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.3511342
关键词
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资金
- Research Grants Council of the Hong Kong Special Administrative Region, China [PolyU 7195/07E]
- Hong Kong Polytechnic University [A-SA29, G-YX0X]
- National Science Foundation of China [50702005]
- Innovation and Technology Commissioner of the Hong Kong Special Administrative Region, China [ITS/314/09]
The electrocaloric effect of BaTiO3 multilayer thick film structure was investigated by direct measurement using differential scanning calorimeter. The samples show a giant electrocaloric effect of 0.89 J/g under E=176 kV/cm, which also depends on the varying rate of applied field, following a general power-law relation. Based on the large net-cooling (0.37 J/g) resulting from the difference in the varying rates of rising and falling fields, the kinetic electrocaloric effect provides a solution for the design of refrigeration cycle in ferroelectric microrefrigerator. (C) 2010 American Institute of Physics. [doi:10.1063/1.3511342]
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