Ferroelectricity and Ferromagnetism of BaTiO_3/BaFeO_3 Superlattice Thin Films

Ryosuke Fukatani; Hiroko Yokota; Shingo Ogura; Yoshiaki Uesu; Ausrine Bartasyte; Mamoru Fukunaga; Yukio Noda

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Ferroelectricity and Ferromagnetism of BaTiO_3/BaFeO_3 Superlattice Thin Films

机译：BaTiO_3 / BaFeO_3超晶格薄膜的铁电和铁磁性

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Ferroelectric BaTiO_3 and antiferromagnetic BaFeO_3 are deposited alternatively by a pulsed laser deposition method with the aim of fabricating room-temperature multiferroic materials. X-ray diffraction (XRD) analysis reveals that the superlattice structure is fabricated with a designed periodicity and thin film quality is improved by increasing BaFeO_3 layers. Ferroelectricity and ferromagnetic properties are examined by the double-wave method (DWM) of D-E hysteresis loops, an XRD dilatometry, and a superconducting quantum interference device magnetometer. Our superlattice thin film shows multiferroicity, i.e., the coexistence of ferroelectricity and ferromagnetism, at room temperature.

机译：为了制造室温多铁材料，通过脉冲激光沉积法交替沉积铁电BaTiO_3和反铁磁BaFeO_3。 X射线衍射（XRD）分析表明，超晶格结构以设计的周期性制造，并且通过增加BaFeO_3层来改善薄膜质量。铁电和铁磁特性通过D-E磁滞回线的双波方法（DWM），XRD膨胀法和超导量子干涉仪磁力计进行检查。我们的超晶格薄膜在室温下显示出多铁性，即铁电性和铁磁性并存。

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来源
《Japanese journal of applied physics》 |2012年第9issue2期|p.09LB01.1-09LB01.4|共4页
作者
Ryosuke Fukatani; Hiroko Yokota; Shingo Ogura; Yoshiaki Uesu; Ausrine Bartasyte; Mamoru Fukunaga; Yukio Noda;
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Department of Physics, Faculty of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan;

Department of Physics, Faculty of Science, Chiba University, Chiba 263-8522, Japan;

Department of Physics, Faculty of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan;

Department of Physics, Faculty of Advanced Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan;

Ecole des Mines de Nancy, Institut Jean Lamour, Parc de Saurupt, Nancy 54042, France;

Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan;

Institute of Multidisciplinary Research for Advanced Materials, Tohoku University, Sendai 980-8577, Japan;

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Ferroelectricity and Ferromagnetism of BaTiO_3/BaFeO_3 Superlattice Thin Films

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