Search for novel cross correlated phenomena induced by uniaxial stress

• Project/Area Number: 25800203
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Condensed matter physics II
• Research Institution: Institute of Physical and Chemical Research (2014-2015); Tokyo University of Science (2013)
• Principal Investigator: Nakajima Taro 国立研究開発法人理化学研究所, 創発物性科学研究センター, 特別研究員 (30579785)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Project Status: Completed (Fiscal Year 2015)
• Budget Amount: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000); Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000); Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
• Keywords: 強相関系 / マルチフェロイック / 一軸応力 / 一軸圧力 / スピンフラストレーション

Outline of Final Research Achievements

We have investigated effects of uniaxial stress on strongly correlated electron system. In the early stage of this study, we studied spin-lattice coupled systems, such as parent compounds of Fe-based superconductors, which originally have structural instability associated with magnetic and/or orbital orders, revealing that application of uniaxial stress significantly affects the crystal and magnetic structures. Subsequently, we applied the idea of uniaxial-stress-control of symmetry to various systems. We successfully demonstrated piezoelectric and piezo-magnetoelectric effects of spin origin in spin driven multiferroics.

Research Products

• [Journal Article] Uniaxial stress control of skyrmion phase (2015)
  • Author(s): Y. Nii, T. Nakajima, A. Kikkawa, Y. Yamasaki, K. Ohishi, J. Suzuki, Y. Taguchi, T. Arima, Y. Tokura & Y. Iwasa
  • Journal Title: Nature Communications Volume: 8539 Issue: 1 Pages: 1-7
  • DOI: 10.1038/ncomms9539
  • Peer Reviewed / Open Access / Acknowledgement Compliant
• [Journal Article] Piezomagnetoelectric Effect of Spin Origin in Dysprosium Orthoferrite (2015)
  • Author(s): Taro Nakajima, Yusuke Tokunaga, Yasujiro Taguchi, Yoshinori Tokura, and Taka-hisa Arima
  • Journal Title: Physical Review Letters Volume: 115 Issue: 19 Pages: 197205-197205
  • DOI: 10.1103/physrevlett.115.197205
  • Peer Reviewed / Acknowledgement Compliant
• [Journal Article] Uniaxial-Stress Control of Spin-Driven Ferroelectricity in Multiferroic Ba2CoGe2O7 (2015)
  • Author(s): T. Nakajima, Y. Tokunaga, V. Kocsis, Y. Taguchi, Y. Tokura, T. Arima
  • Journal Title: Phys. Rev. Lett. Volume: 114 Issue: 6 Pages: 067201-067201
  • DOI: 10.1103/physrevlett.114.067201
  • Peer Reviewed
• [Journal Article] Electric polarization along the c axis in the ferroelectric helimagnetic phase of CuFe1－xGaxO2 (x=0.035) (2014)
  • Author(s): Chikafumi Kaneko, Taro Nakajima, Setsuo Mitsuda, Yoshikazu Tanaka, and Noriki Terada
  • Journal Title: Physical Review B Volume: 90 Issue: 8 Pages: 085109-085109
  • DOI: 10.1103/physrevb.90.085109
  • Peer Reviewed / Acknowledgement Compliant
• [Presentation] MnSi における磁気スキルミオン相の一軸応力制御 - J-PARC 大観における一軸応力 下中性子小角散乱 - (2015)
  • Author(s): 中島多朗，新居陽一，吉川明子，山崎裕一，大石一城，鈴木淳市，田口康二郎，岩佐義宏，十倉好紀，有馬孝尚
  • Organizer: 日本中性子科学会第15 回年会
  • Place of Presentation: 和光市民文化センター
  • Year and Date: 2015-12-10
• [Presentation] 中性子小角散乱を用いたカイラル磁性体MnSiの磁気秩序に対する一軸応力効果の研究 (2015)
  • Author(s): 中島多朗，新居陽一，吉川明子，山崎裕一，大石一城，鈴木淳市，田口康二郎，岩佐義宏，十倉好紀，有馬孝尚
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 千里山キャンパス
  • Year and Date: 2015-09-16
• [Presentation] Dyオルソフェライトにおける圧電磁気効果 (2015)
  • Author(s): 中島多朗，徳永祐介，田口康二郎，十倉好紀，有馬孝尚
  • Organizer: 日本物理学会 2015年秋季大会
  • Place of Presentation: 関西大学 千里山キャンパス
  • Year and Date: 2015-09-16
• [Presentation] Uniaxial-stress control of spin-driven ferroelectricity in multiferroic Ba2CoGe2O7 (2015)
  • Author(s): T. Nakajima, Y. Tokunaga, V. Kocsis, Y. Taguchi, Y. Tokura, T.H. Arima
  • Organizer: 20th International Conference on Magnetism
  • Place of Presentation: Barcelona, Spain
  • Year and Date: 2015-07-05
  • Int'l Joint Research
• [Presentation] J-PARC MLF における一軸応力下での中性子散乱実験に向けての装置開発 (2014)
  • Author(s): 中島多朗, 鈴木淳市, 大石一城, 有馬孝尚, 満田節生
  • Organizer: 日本中性子科学会第14回年会
  • Place of Presentation: 北海道立道民活動センター
  • Year and Date: 2014-12-11 – 2014-12-12
• [Presentation] マルチフェロイックBa2CoGe2O7における一軸応力誘起強誘電性 (2014)
  • Author(s): 中島多朗，徳永祐介，Vilmos Kocsis，田口康二郎，有馬孝尚，十倉好紀
  • Organizer: 日本物理学会 2014年秋季大会
  • Place of Presentation: 中部大学
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] MnSiのスキルミオン結晶相に及ぼす一軸応力の効果 (2014)
  • Author(s): 新居陽一，中島多朗，吉川明子，田口康二郎，有馬孝尚，岩佐義宏，十倉好紀
  • Organizer: 日本物理学会 2014年秋季大会
  • Place of Presentation: 中部大学
  • Year and Date: 2014-09-07 – 2014-09-10
• [Presentation] 鉄カルコゲナイド超伝導体母物質FeTeにおける結晶構造と電気抵抗の異方性の相関 (2014)
  • Author(s): 中島多朗，町田理，諸星大樹，刈谷弘法，山崎裕一，中尾裕則，竹屋浩幸，茂筑高士，大井修一，水口佳一，高野義彦，平田和人，坂田英明，満田節生
  • Organizer: 日本物理学会 第69回年次大会
  • Place of Presentation: 東海大学
• [Presentation] 鉄カルコゲナイド超伝導体の母物質における面内電気抵抗の一軸圧効果 (2013)
  • Author(s): 諸星大樹，刈谷弘法，町田理，中島多朗，竹屋浩幸，茂筑高士，大井修一，水口佳一，高野義彦，平田和人，満田節生，坂田英明，山崎裕一，中尾裕則
  • Organizer: 日本物理学会2013年秋季大会
  • Place of Presentation: 徳島大学