Control of magnetic multipole domains using anisotropic physical responses

• Project/Area Number: 20K03853
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Review Section: Basic Section 13030:Magnetism, superconductivity and strongly correlated systems-related
• Research Institution: Nihon University
• Principal Investigator: ABE Nobuyuki 日本大学, 文理学部, 准教授 (70582005)
• Project Period (FY): 2020-04-01 – 2023-03-31
• Project Status: Completed (Fiscal Year 2022)
• Budget Amount: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000); Fiscal Year 2022: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000); Fiscal Year 2021: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000); Fiscal Year 2020: ¥3,120,000 (Direct Cost: ¥2,400,000、Indirect Cost: ¥720,000)
• Keywords: マルチフェロイクス / 方向二色性 / 奇パリティ磁気多極子秩序 / 反強磁性ドメイン / ドメイン / 奇パリティ磁気多極子 / 電気磁気効果

Outline of Research at the Start

反強磁性体は、マクロな磁化が現れず磁場に対しても応答が小さいという特徴から、これまでは主に理学的見地から研究が行われてきた。しかし近年の研究により、らせん磁気秩序によって発現する電気分極や、クラスター多極子に由来する巨大磁気抵抗効果や磁気光学効果など、反強磁性体においても大きな外場応答を示す場合があることが明らかになってきた。本研究では反強磁性体における大きな外場応答の起源の一つである奇パリティ磁気多極子秩序に着目し、非相反光学効果を用いたドメイン観察手法の確立と、異方的な物性応答を利用したドメイン制御について研究を行い、ドメインの存在により顕には現れていなかった物性応答の発現を目指す。

Outline of Final Research Achievements

In this study, we focused on the odd-parity magnetic multipolar order as the origin of new physical property responses associated with the breaking of both space inversion symmetry and time reversal symmetry, and performed experiments to detect the new physical properties as macroscopic physical property responses. To achieve this, we have studied visualization of odd-parity magnetic multipolar domains and domain control using anisotropic physical response. Main achievements are listed below. 1. Multiferroic response is newly discovered in several materials such as Ba3Fe2O5Cl2. 2. It has been discovered that large directional dichroism in MnTiO3 and organic-inorganic hybrid perovskites.

Academic Significance and Societal Importance of the Research Achievements

本研究の成果の中でも特にアキラルな構造を持つ反強磁性体であるMnTiO3における方向二色性の発見は、これまでの研究指針よりも広範囲の物質に適応できる可能性があり、今後の方向二色性を示す物質の新しい探索指針になることが期待される。

Research Products

• [Journal Article] Antiferromagnetic domain wall dynamics in magnetoelectric MnTiO3 studied by optical imaging (2022)
  • Author(s): T. Sato, N. Abe, Y. Tokunaga, T. Arima
  • Journal Title: Physical Review B Volume: 105 Issue: 9 Pages: 094417-094417
  • DOI: 10.1103/physrevb.105.094417
  • Peer Reviewed
• [Journal Article] Photoinduced Oxygen Transport in Cobalt Double-Perovskite Crystal EuBaCo2O5.39 (2021)
  • Author(s): M. Hada, S. Ohmura, T. Ishikawa, M. Saigo, N. Keio, W. Yajima, T. Suzuki, D. Urushihara, K. Takubo, Y. Masaki, M. Kuwahara, K. Tsuruta, Y. Hayashi, J. Matsuo, T. Yokoya, K. Onda, F. Shimojo, M. Hase, S. Ishihara, T. Asaka, N. Abe, T. Arima, S. Koshihara, Y. Okimoto
  • Journal Title: Appl. Mater. Today Volume: 24 Pages: 101167-101167
  • DOI: 10.1016/j.apmt.2021.101167
  • Peer Reviewed / Open Access
• [Journal Article] Antiferromagnetic-to-ferrimagnetic phase transition with large electric-polarization change in a frustrated polar magnet CaBaCo4O7 (2021)
  • Author(s): T. Omi, Y. Watanabe, N. Abe, H. Sagayama, A. Nakao, K. Munakata, Y. Tokunaga, T. Arima
  • Journal Title: Physical Review B Volume: 103 Issue: 18 Pages: 184412-184412
  • DOI: 10.1103/physrevb.103.184412
  • Peer Reviewed
• [Journal Article] Magneto-Electric Directional Anisotropy in Polar Soft Ferromagnets of Two-Dimensional Organic-Inorganic Hybrid Perovskites (2021)
  • Author(s): K. Taniguchi, M. Nishio, N. Abe, P.-J. Huang, S. Kimura, T. Arima, H. Miyasaka
  • Journal Title: Angewandte Chemie International Edition Volume: 60 Issue: 26 Pages: 14350-14354
  • DOI: 10.1002/anie.202103121
  • Peer Reviewed
• [Journal Article] Thermally driven commensurate-incommensurate transition tracked by magnetochromism in chiral polar Ni2In0.9Cr0.1SbO6 (2020)
  • Author(s): Tatsuki Sato, Nobuyuki Abe, Yusuke Araki, Shojiro Kimura, Yusuke Tokunaga, and Taka-hisa Arima
  • Journal Title: PHYSICAL REVIEW B Volume: 102 Issue: 9 Pages: 094418-094418
  • DOI: 10.1103/physrevb.102.094418
  • Peer Reviewed
• [Journal Article] Metamagnetic transitions and magnetoelectric responses in the chiral polar helimagnet Ni2InSbO6 (2020)
  • Author(s): Y. Araki, T. Sato, Y. Fujima, N. Abe, M. Tokunaga, S. Kimura, D. Morikawa, V. Ukleev, Y. Yamasaki, C. Tabata, H. Nakao, Y. Murakami, H. Sagayama, K. Ohishi, Y. Tokunaga, and T. Arima
  • Journal Title: PHYSICAL REVIEW B Volume: 102 Issue: 5 Pages: 054409-054409
  • DOI: 10.1103/physrevb.102.054409
  • Peer Reviewed
• [Journal Article] Magnetochiral Dichroism in a Collinear Antiferromagnet with No Magnetization (2020)
  • Author(s): Tatsuki Sato, Nobuyuki Abe, Shojiro Kimura, Yusuke Tokunaga, and Taka-hisa Arima
  • Journal Title: Physical Review Letters Volume: 124 Issue: 21 Pages: 217402-217402
  • DOI: 10.1103/physrevlett.124.217402
  • Peer Reviewed
• [Journal Article] Magnetically induced electric polarization in Ba3Fe2O5Cl2 with tunable direction in three dimensions (2020)
  • Author(s): N. Abe, S. Shiozawa, K. Matsuura, H. Sagayama, A. Nakao, T. Ohhara, Y. Tokunaga, T. Arima
  • Journal Title: Physical Review B Volume: 101 Issue: 18 Pages: 180407-180407
  • DOI: 10.1103/physrevb.101.180407
  • Peer Reviewed / Open Access
• [Presentation] ハニカム格子反強磁性体BaNi2(PO4)2における電気磁気結合と方向二色性 (2021)
  • Author(s): 佐藤樹 , 園山樹 , 渡辺柊 , 車地崇 , 木村尚次郎 , 阿部伸行 , 徳永祐介 , 有馬孝尚
  • Organizer: 日本物理学会2021年秋季大会
• [Presentation] 磁気キラル効果によるMnTiO3の反強磁性磁区イメージング (2021)
  • Author(s): 佐藤樹，阿部伸行，徳永祐介，有馬孝尚
  • Organizer: 日本物理学会第76回年次大会
• [Presentation] 極性反強磁性体Fe3PO7における電気磁気効果 (2021)
  • Author(s): 荒木勇介，阿部伸行，徳永祐介，有馬孝尚
  • Organizer: 日本物理学会第76回年次大会
• [Presentation] ローレンツ透過電子顕微鏡法を用いたスピネル型硫化物Fe1-xCuxCr2S4(x=0.1)の磁気バブル観測 (2021)
  • Author(s): 磯貝レオナ，藤間友理，LicongPeng，FehmiSamiYasin，中島清美，XiuzhenYu，阿部伸行，徳永祐介，有馬孝尚
  • Organizer: 日本物理学会第76回年次大会
• [Presentation] 極性キラル磁性体Ni2InSbO6におけるCo置換効果 (2020)
  • Author(s): 荒木勇介，大石一城，阿部伸行，徳永祐介，有馬孝尚
  • Organizer: 日本物理学会2020年秋季大会
• [Presentation] 六方晶希土類金属間化合物DyAuInのc軸磁場下伝導特性 (2020)
  • Author(s): 渡辺義人，阿部伸行，徳永祐介，有馬孝尚
  • Organizer: 日本物理学会2020年秋季大会