Ferroelectric, electrical and magnetic properties of Cr, Mn, Co, Ni, Cu added polycrystalline BiFeO3 films
Ferroelectric, electrical and magnetic properties of Cr, Mn, Co, Ni, Cu added polycrystalline BiFeO3 films
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DOI：
10.1063/1.2965799
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发表时间：
2008-08-04
影响因子：
4
通讯作者：
Okamura, Soichiro
中科院分区：
文献类型：
--
作者：
Naganuma, Hiroshi;Miura, Jun;Okamura, Soichiro
在BiFeO（3）多晶薄膜中添加Cr、Mn、Co、Ni和Cu，研究了它们对BiFeO（3）多晶薄膜铁电、电学和磁学性能的影响。除Ni外，所有添加剂都降低了高电场区的漏电流密度。Cu和Co的加入降低了矫顽场，但没有降低回复极化。Co的加入在室温下引起自发磁化，在10 K时表现出16 kOe的大矫顽场。结果表明，Co的加入抑制了漏电流密度，降低了矫顽场，诱导了自发磁化和大的矫顽力。(C)2008年美国物理学会。
Cr, Mn, Co, Ni, and Cu were added to polycrystalline BiFeO(3) films, and their influence on the ferroelectric, electrical, and magnetic properties was investigated. All the additives except Ni reduced the leakage current density in the high electric field region. The addition of Cu and Co decreased the coercive field without reducing remanent polarization. The addition of Co caused spontaneous magnetization at room temperature, which exhibited a large coercive field of 16 kOe at 10 K. It was revealed that Co addition suppressed the leakage current density, decreased the electric coercive field, and induced spontaneous magnetization and large magnetic coercivity. (C) 2008 American Institute of Physics.