BaTiO3-ferrite composites with magnetocapacitance and hard/soft magnetic properties

被引：26
作者：
Curecheriu, Lavinia [1 ]
Postolache, Petronel [1 ]
Buscaglia, Vincenzo [2 ]
Horchidan, Nadejda [1 ]
Alexe, Marin [3 ]
Mitoseriu, Liliana [1 ]
机构：
[1] Alexandru Ioan Cuza Univ, Dept Phys, Blvd Carol 11, Iasi 700506, Romania
[2] IENI CNR, Inst Energet & Interphases, I-16149 Genoa, Italy
[3] Max Planck Inst Microstruct Phys, D-06120 Halle, Saale, Germany
来源：
PHASE TRANSITIONS | 2013年 / 86卷 / 07期
关键词：
magnetocapacitance; dielectric properties; magnetic characteristics; composites; MAGNETOELECTRIC PROPERTIES; RELAXATION; SPECTROSCOPY; IMPEDANCE;
D O I：
10.1080/01411594.2012.756879
中图分类号：
O7 [晶体学];
学科分类号：
0702 ; 070205 ; 0703 ; 080501 ;
摘要：
BaTiO3-ferrite multiphase composites were prepared starting from di-phase mixtures of -Fe2O3 and BaTiO3 powders. During the sintering step, the formation of small amounts of secondary phases with multifunctional character as BaFe12O19 or Ba12Ti28Fe15O84 was promoted. The resulting multiphase ceramic compounds show interesting dielectric, magnetic and small magnetocapacitance effect at low temperature. The coexistence of different magnetic phases with contrasting coercivities (hard/soft) was detected by the presence of wasp-waisted' M(H) hysteresis loops and first-order reversal curve analysis. The present approach demonstrates that active materials can be realised by controlling in situ reactions at the interfaces in ferroelectric-magnetic oxide composites.
引用
收藏
页码：670 / 680
页数：11
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