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Paper Abstract and Keywords
Presentation 2022-06-10 14:45
Effect of Co substitution concentration on various magnetic properties of (Bi1-xBax)(Fe1-yCoy)O3 multiferroic thin films and consideration on the origin of those magnetic properties
Takumi Ozeki, Genta Egawa, Satoru Yoshimura (Akita Univ.)
Abstract (in Japanese) (See Japanese page) 
(in English) Development of Ferromagnetism / ferroelectric thin films with large saturation magnetization, perpendicular magnetic anisotropy, and magneto optical Kerr effect, were performed for realization of the ultra-low power consumption magnetic memory and spatial optical modulation element with driven by electric field. From the previous study about the effect of Co substitution on magnetic properties in (Bi1-xLax)(Fe1-yCoy)O3 thin films, in this study we fabricated the (Bi1-xBax)(Fe1-yCoy)O3 thin films with various composition and investigated their magnetic properties. The large saturation magnetization was obtained when the sum of the Ba substitution amount and the Co substitution amount was about 50-60 at%. The perpendicular magnetic anisotropy and large magneto optical Kerr effect were obtained when the Co substitution amount was about 20 at%. It was also found that in the case of Co substitution of more than 20 at%, the crystallinity deteriorates due to the large amount of substitution elements having a large ionic radius, and the magnetic properties also deteriorate accordingly. We also found that effect of Co substitution is different between Alkaline earth and Lanthanoids of A-site substitution elements in (Bi,A)(Fe,Co)O3.
Keyword (in Japanese) (See Japanese page) 
(in English) Multiferroic thin films / Saturation magnetization / Perpendicular magnetic anisotropy / Magneto optical Kerr effect / Magnetic devices / / /  
Reference Info. ITE Tech. Rep., vol. 46, no. 16, MMS2022-40, pp. 45-51, June 2022.
Paper # MMS2022-40 
Date of Issue 2022-06-02 (MMS) 
ISSN Print edition: ISSN 1342-6893    Online edition: ISSN 2424-1970
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Conference Information
Committee IEICE-MRIS MMS  
Conference Date 2022-06-09 - 2022-06-10 
Place (in Japanese) (See Japanese page) 
Place (in English) RIEC, Tohoku Univ. 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Recording system, Head, Media, and Others 
Paper Information
Registration To MMS 
Conference Code 2022-06-MRIS-MMS 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Effect of Co substitution concentration on various magnetic properties of (Bi1-xBax)(Fe1-yCoy)O3 multiferroic thin films and consideration on the origin of those magnetic properties 
Sub Title (in English)  
Keyword(1) Multiferroic thin films  
Keyword(2) Saturation magnetization  
Keyword(3) Perpendicular magnetic anisotropy  
Keyword(4) Magneto optical Kerr effect  
Keyword(5) Magnetic devices  
1st Author's Name Takumi Ozeki  
1st Author's Affiliation Akita University (Akita Univ.)
2nd Author's Name Genta Egawa  
2nd Author's Affiliation Akita University (Akita Univ.)
3rd Author's Name Satoru Yoshimura  
3rd Author's Affiliation Akita University (Akita Univ.)
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Date Time 2022-06-10 14:45:00 
Presentation Time 25 minutes 
Registration for MMS 
Paper # MMS2022-40 
Volume (vol) vol.46 
Number (no) no.16 
Page pp.45-51 
Date of Issue 2022-06-02 (MMS) 

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