期刊
APPLIED PHYSICS LETTERS
卷 114, 期 24, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5094069
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资金
- National Natural Science Foundation of China [61671235, 51672123, 11874208, 51721001]
- National Key Research Programme of China [2016YFA0201004]
- 973 Project of MOST [2015CB921201]
- Natural Science Foundation of Jiangsu Province, China [BK20161409]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
The structural, electric, and magnetic properties were investigated in multisusceptible BaAlxFe12-xO19 (x=0, 1, 2, and 3) ceramics. It is found that the magnetic domain structure changes abruptly with the increase in the Al3+ concentration, which is responsible for the abnormal coercivity enhancement and the distinct initial magnetization behavior. Smaller Al3+ doping increases the off-center displacement of Fe3+ ions at the trigonal bipyramid by introducing compressive strain, which thus enhances the stability of the ferroelectric phase and improves the ferroelectric Curie temperature of BaFe12O19. Moreover, more stable Al3+ ions can increase the resistance of BaFe12O19. The present results highlight the possible application of Al3+ doped BaFe12O19 ceramics as a multisusceptible single-phase material on multifunctional electronic devices.
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