Competition effects of grain boundary and aging on the hysteresis loop behavior of (Ba0.8Sr0.2)(Ti,Mn)O3 ceramics |
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| Affiliation: | 1. Department of Electronic Science, College of Science, Guizhou University, Guiyang, Guizhou 550025, China;2. College of Physics and Information Technology, Shaanxi Normal University, Xi’an 710062, China;1. School of Optical and Electric Information, Huazhong University of Science and Technology, Wuhan, 430074, China;2. State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, Wuhan University of Technology, Wuhan, 430070, China;3. Innovation Center, Rogers Corporation, 141 S. Bedford Street, Burlington, MA, 01803, USA;4. Center for Microwave Magnetic Materials and Integrated Circuits, Department of Electrical and Computer Engineering, Northeastern University, Boston, MA, 02115, USA;1. Key Laboratory for Liquid−Solid Structural Evolution and Processing of Materials (Ministry of Education), School of Materials Science and Engineering, Shandong University, Jinan, 250061; Suzhou Institute of Shandong University, Suzhou, 215123 China;2. School of Physics, State Key Laboratory of Crystal Materials, Shandong University, Jinan, Shandong, 250100 China;3. National Institute of Standards and Technology, Gaithersburg, Maryland, 20899 United States;1. Syktyvkar State University, Syktyvkar, Republic of Komi 167001, Russia;2. Institute of Chemistry of the Komi Science Center UB RAS, Syktyvkar, Republic of Komi 167982, Russia;3. Department of Crystallography, Institute of Earth Science, Saint-Petersburg State University, St. Petersburg 199034, Russia;1. Max-Planck-Institut für Eisenforschung GmbH, 40237 Düsseldorf, Germany;2. Institute of Condensed Matter Physics and Interdisciplinary Center for Electron Microscopy, Ecole Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland |
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| Abstract: | Hysteresis loop is very important for the application of ferroelectric ceramics. Here the competition effects of grain boundary and aging on the hysteresis loop behavior of Mn doped (Ba0.8Sr0.2)TiO3 ceramics were studied. The results show that a double hysteresis loop appears after aging. Nevertheless, Pmax of small grained ceramics decreased clearly but Pr decreased little with aging time increases; large grained ceramics have the opposite result. Such difference is caused by the competition effect on their domain switching behavior, from aging-induced time-dependent internal defect field and grain boundary generated time-independent back field. This study may provide help on the control of hysteresis loop by grain size and aging. |
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| Keywords: | B. Defects B. Grain boundaries Ceramics Ferroelectrics Aging |
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