Control of electric domains in spin-driven multiferroic materials by means of rotating magnetic fields
Project/Area Number |
15K05184
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Condensed matter physics II
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Research Institution | Sophia University |
Principal Investigator |
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Co-Investigator(Renkei-kenkyūsha) |
AKAHOSHI Daisuke 東邦大学, 理学部, 准教授 (90407354)
AKAKI Mitsuru 大阪大学, 大学院理学研究科, 助教 (60610904)
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Project Period (FY) |
2015-04-01 – 2018-03-31
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Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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Keywords | マルチフェロイック物質 / 誘電体 / スピン / 電気分極ドメイン / 酸化物 / 相転移 / 磁場 / 電気磁気効果 / 極性結晶 |
Outline of Final Research Achievements |
We have investigated change of electric domains in high-quality BiFeO3 single crystal grown by the laser-diode floating-zone method, as a function of applied magnetic-field (H) direction. We have demonstrated that electric polarization along the Y direction (PY) has been controlled by means of rotating H. Namely, PY was proportional to cos2q, where q is the angle of applied H direction against [100]. q dependence of PY has a π-periodicity, which means that PY remains unchanged by reversal of applied H direction. Furthermore, we have studied nonreciprocal DC magnetoelectric response, i.e., crystalline (polar) direction dependence of magnetoelectric susceptibilities for CaBaM4O7 (M=Co,Fe) single crystals. Especially, we focused on the electric-field (Ec)-induced magnetization (Mb,Mc) in CaBaM4O7, which had almost not yet been performed. We have found that the obtained magnetoelectric susceptibility α32 defined as ΔMb=α32Ec has a different sign depending on the polar direction.
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Report
(4 results)
Research Products
(52 results)
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[Journal Article] Muon-Spin Rotation in Multiferroic Cu3Mo2O9 under Electric Fields2015
Author(s)
Haruhiko Kuroe, Hideki Kuwahara, Tomoyuki Sekine, Isao Watanabe, Andrea-Raeto Raselli, Matthias Elender, Pabitra Kumar Biswas, Masashi Hase, Kunihiko Oka, Toshimitsu Ito, Hiroshi Eisaki
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Journal Title
Physics Procedia
Volume: 75
Pages: 221-229
DOI
Related Report
Peer Reviewed / Int'l Joint Research
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[Journal Article] Multiferroic Properties of Cu3(Mo,W)2O92015
Author(s)
Yoshinori Hirata, Shuma Nishikawa, Kento Aoki, Ryo Kino, Haruhiko Kuroe, Hideki Kuwahara, Tomoyuki Sekine, Masashi Hase, Kunihiko Oka, Toshimitsu Ito, Hiroshi Eisaki
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Journal Title
Physics Procedia
Volume: 75
Pages: 134-141
DOI
Related Report
Peer Reviewed
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[Presentation] Cu3(Mo,W)2O9の磁化測定22017
Author(s)
江袋佑太, 阿部太亮, 小田涼佑, 桑原英樹, 黒江晴彦, 長谷正司, 岡邦彦, 伊藤利充, 永崎洋
Organizer
日本物理学会 第72回年次大会
Place of Presentation
大阪大学 豊中キャンパス
Year and Date
2017-03-17
Related Report
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[Presentation] RBaMn2O6(R = Pr, Nd, Sm)の酸素欠損が物性に与える効果2017
Author(s)
谷川統久, 高田寛己, 保利美幸, 和田詠史, 小田涼佑, 野田正亮, 桑原英樹, 赤星大介, 齊藤敏明
Organizer
日本物理学会 第72回年次大会
Place of Presentation
大阪大学 豊中キャンパス
Year and Date
2017-03-17
Related Report
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[Presentation] ぺロブスカイト型マンガン酸化物Nd1-xSrxMnO3 におけるMn 2p内殻光電子スペクトル線二色性の観測2017
Author(s)
服部竜大, 藤原秀紀, 永井浩大, 藤岡修平, 金井惟奈, 山神光平, 木須孝幸, 東谷篤志, 山崎篤志, 門野利治, 今田真, 播木敦, 魚住孝幸, 玉作賢治, 矢橋牧名, 石川哲也, 桑原英樹, 関山明
Organizer
日本物理学会 第72回年次大会
Place of Presentation
大阪大学 豊中キャンパス
Year and Date
2017-03-17
Related Report
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[Presentation] Nonmagnetic impurity effects on distorted tetrahedral spin-chain systems Cu3(Mo,W)2O92017
Author(s)
Haruhiko KUROE, Yuta EBUKURO, Yoshinori HIRATA, Masaaki NODA, Ryosuke ODA, Hideki KUWAHARA, Masashi HASE, Kunihiko OKA, Toshimitsu ITO, and Hiroshi EISAKI
Organizer
The International Conference on Strongly Correlated Electron Systems 2017
Related Report
Int'l Joint Research
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[Presentation] Nonmagnetic impurity effects on distorted tetrahedral spin-chain systems (Cu,Ni)3(Mo,W)2O92017
Author(s)
Yuta EBUKURO, Masaaki NODA, Ryosuke ODA, Hideki KUWAHARA, Haruhiko KUROE, Masashi HASE, Kunihiko OKA, Toshimitsu ITO, and Hiroshi EISAKI
Organizer
The International Conference on Strongly Correlated Electron Systems 2017
Related Report
Int'l Joint Research
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[Presentation] 角度分解光電子分光法による層状Mn酸化物の電子構造2016
Author(s)
S. Imai, I. Takayama, K. Ogawa, H. Kuwahara, K. Ono, M. Okawa, T. Saitoh
Organizer
第29回日本放射光学会年会
Place of Presentation
東京大学柏の葉キャンパス
Year and Date
2016-01-09
Related Report
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