Artificial phase separated structure of charge- and magnetic-order in oxide superlattices

2010 Fiscal Year Final Research Report

• Project/Area Number: 21760032
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: NAKAMURA Masao The Institute of Physical and Chemical Research, 交差相関超構造研究チーム, 基幹研究所研究員 (50525780)
• Project Period (FY): 2009 – 2010
• Keywords: 人工超格子 / ヘテロ構造 / 巨大磁気抵抗効果 / 電荷整列 / 相分離構造 / 相競合 / 外場応答性

Research Abstract

Artificial superlattices composed of two perovskite-type manganites with slightly different chemical compositions were fabricated by depositing each composition alternatively in a nanometer-scale. The two compositions have contrastive electronic phases, a ferromagnetic-metal and antiferromagnetic- insulator. It was revealed that the superlattices are in phase-coexisting state from transport and magnetic properties, optical spectra, and results of synchrotron x-ray diffraction. The resistivity and magnetization of the superlattice could be continuously tuned by a magnetic field or electric field as a result of the displacement of the electronic phase boundaries by the external fields.

Research Products

• [Journal Article] 強相関電子系の薄膜におけるスピン超構造 (2011)
  • Author(s): 中村優男、川崎雅司、十倉好紀
  • Journal Title: 表面科学 32 Pages: 128
  • Peer Reviewed
• [Journal Article] Multiferroicity in an orthorhombic YMnO_3 single-crystal film (2011)
  • Author(s): M.Nakamura, Y.Tokunaga, M.Kawasaki, Y.Tokura
  • Journal Title: Appl.Phys.Lett. 98 Pages: 082902
  • Peer Reviewed
• [Journal Article] Transient photoinduced "hiden" phase in a manganite (2011)
  • Author(s): H.Ichikawa, S.Nozawa, T.Sato, A.Tomita, K.Ichiyanagi, M.Chollet, L.Guerin, N.Dean, A.Cavalleri, S.Adachi, T.Arima, H.Sawa, Y.Ogimoto, M.Nakamura, R.Tamaki, K.Miyano, S.Koshihara
  • Journal Title: Nature Materials 10 Pages: 101
  • Peer Reviewed
• [Journal Article] Interface band profiles of heterojunctions as investigated by optical spectroscopy (2010)
  • Author(s): M.Nakamura, A.Sawa, J.Fujioka, M.Kawasaki, Y.Tokura
  • Journal Title: Phys.Rev.B 82 Pages: 201101R
  • Peer Reviewed
• [Journal Article] Competing electronic orders in anisotropically strained (Pr_<0.6>Ca_<0.4>)_<1-x>(La_<0.6>Sr_<0.4>)_xMnO_3 thin films (2010)
  • Author(s): J.S.Lee, M.Nakamura, D.Okuyama, R.Kumai, T.Arima, M.Kawasaki, Y.Tokura
  • Journal Title: Phys.Rev.B 82 Pages: 052406
  • Peer Reviewed
• [Journal Article] Growth of superconducting Sr_2RuO_4 thin films (2010)
  • Author(s): Y.Krockenberger, M.Uchida, K.S.Takahashi, M.Nakamura, M.Kawasaki, Y.Tokura
  • Journal Title: Appl.Phys.Lett. 97 Pages: 082502
  • Peer Reviewed
• [Journal Article] Mesoscopic Percolating Resistance Network in a Strained Manganite Thin Film (2010)
  • Author(s): K.Lai, M.Nakamura, W.Kundhikanjana, M.Kawasaki, Y.Tokura, M.A.Kelly, Z.-X.Shen
  • Journal Title: Science(* Equal contribution) 329 Pages: 190
  • Peer Reviewed
• [Journal Article] Magnetically tunable metal-insulator superlattices (2010)
  • Author(s): M.Nakamura, D.Okuyama, J.S.Lee、 T.Arima, Y.Wakabayashi, R.Kumai, M.Kawasaki, Y.Tokura
  • Journal Title: Adv.Mater. 22 Pages: 500
  • Peer Reviewed
• [Journal Article] Epitaxial-strain effect on charge/orbital order in Pr_<0.5>Ca_<0.5>MnO_3 films (2009)
  • Author(s): D.Okuyama, M.Nakamura, Y.Wakabayashi, H.Itoh, R.Kumai, H.Yamada, Y.Taguchi, T.Arima, M.Kawasaki, Y.Tokura
  • Journal Title: Appl.Phys.Lett. 95 Pages: 152502
  • Peer Reviewed
• [Presentation] Band profiles of Mott-insulator/ band-insulator heterointerfaces revealed by photocurrent and electromodulation spectroscopies (2011)
  • Author(s): M.Nakamura
  • Organizer: APS March Meeting
  • Place of Presentation: Dallas, USA
  • Year and Date: 20110321-20110325
• [Presentation] Structural and electronic phase transition in a metal-insulator manganite superlattice (2010)
  • Author(s): M.Nakamura, D.Okuyama, J.S.Lee, T.Arima, Y.Wakabayashi, R.Kumai, M.Kawasaki, Y.Tokura
  • Organizer: (ポスター発表)物構研シンポジウム'10
  • Place of Presentation: つくば
  • Year and Date: 20101207-20101208
• [Presentation] Competing electronic orders of manganites as realized on a chip (2010)
  • Author(s): J.S.Lee, M.Nakamura, D.Okuyama, R.Kumai, T.Arima, M.Kawasaki, Y.Tokura
  • Organizer: 6^<th> International Workshop on Combinatorial Materials Science and Technology
  • Place of Presentation: 北海道
  • Year and Date: 20101026-20101029
• [Presentation] Multiferroicity in an orthorhombic YMnO3 thin film (2010)
  • Author(s): M.Nakamura, Y.Tokunaga, M.Kawasaki, Y.Tokura
  • Organizer: (ポスター発表)Opening symposium of QS^2C Theory Forum
  • Place of Presentation: 和光
  • Year and Date: 20100927-20100930
• [Presentation] 共鳴軟X線散乱によるPr_<1-x>Ca_xMnO_3薄膜の電荷・軌道・スピン秩序の観測 (2010)
  • Author(s): 和達大樹, J.Geck, E.Schierle, R.Sutarto, F.He, D.G.Hawthorn, 中村優男, 川崎雅司, 十倉好紀, G.A.Sawatzky
  • Organizer: 日本物理学会2010年秋季大会
  • Place of Presentation: 大阪
  • Year and Date: 20100923-20100926
• [Presentation] Rigid-band-like band profiles of Mott-insulator/Nb:SrTiO_3 hetero- interfaces as revealed by photocurrent action spectra (2010)
  • Author(s): M.Nakamura, A.Sawa, J.Fujioka, M.Kawasaki, Y.Tokura
  • Organizer: 17th International Workshop on Oxide Electronics (WOE17)
  • Place of Presentation: 淡路島
  • Year and Date: 20100919-20100922
• [Presentation] Self-organized and artificially-engineered phase separation in manganite thin films (2010)
  • Author(s): M.Nakamura, D.Okuyama, J.S.Lee, T.Arima, Y.Wakabayashi, R.Kumai, K.Lai, W.Kundhikanjana, M.A.Kelly, Z.-X. Shen, M.Kawasaki, Y.Tokura
  • Organizer: 17th International Workshop on Oxide Electronics (WOE17)
  • Place of Presentation: 淡路島
  • Year and Date: 20100919-20100922
• [Presentation] Resonant soft x-ray scattering of Pr_<0.5>Ca_<0.5>MnO_3 thin films (2010)
  • Author(s): T.Wadati, J.Geck, E.Schierle, R.Sutarto, F.He, D.G.Hawthorn, M.Nakamura, M.Kawasaki, Y.Tokura
  • Organizer: 17th International Workshop on Oxide Electronics (WOE17)
  • Place of Presentation: 淡路島
  • Year and Date: 20100919-20100922
• [Presentation] 斜方晶RMnO_3単結晶薄膜におけるマルチフェロイック特性 (2010)
  • Author(s): 中村優男, 徳永祐介, J.S.Lee, 川崎雅司, 十倉好紀
  • Organizer: 第71回応用物理学会学術連合会
  • Place of Presentation: 長崎
  • Year and Date: 20100914-20101917
• [Presentation] Interfacial structure of a multilayer of strongly correlated manganite (2010)
  • Author(s): Y.Yamasaki, Y.Wakabayashi, D.Okuyama, T.Arima, M.Nakamura, M.Kawasaki, Y.Tokura, T.Kimura
  • Organizer: The Eleventh International Conference on Surface X-ray and Neutron Scattering Evanston
  • Place of Presentation: Illinois
  • Year and Date: 20100713-20100717
• [Presentation] 表面X線散乱法によるMn酸化物薄膜の界面構造の観測 (2010)
  • Author(s): 山崎好紘, 若林裕助, 奥山大輔, 有馬孝尚, 中村優男, 川崎雅司, 十倉好紀, 木村剛
  • Organizer: 日本物理学会第65回年次大会
  • Place of Presentation: 岡山
  • Year and Date: 20100320-20100323
• [Presentation] Epitaxial-strain effect on charge- and orbital-ordered Pr_<0.5>Ca_<0.5>MnO_3 films (2010)
  • Author(s): D.Okuyama, M.Nakamura, Y.Wakabayashi, H.Itoh, R.Kumai, H.Yamada, Y.Taguchi, T.Arima, M.Kawasaki, Y.Tokura
  • Organizer: APS March Meeting
  • Place of Presentation: Portland, USA
  • Year and Date: 20100315-20100319
• [Presentation] Mesoscopic percolation network in a manganite thin film revealed by microwave impedance microscopy (2010)
  • Author(s): K.Lei, W.Kundhikanjana, M.Kelly, Z-X.Shen, M.Nakamura, M.Kawasaki, Y.Tokura
  • Organizer: APS March Meeting
  • Place of Presentation: Portland, USA
  • Year and Date: 20100315-20100319
• [Presentation] Resonant soft x-ray scattering studies of Pr_<0.5>Ca_<0.5>MnO_3 thin films (2010)
  • Author(s): H.Wadati, J.Geck, E.Schierle, M.Nakamura, M.Kawasaki, Y.Tokura, G.A.Zawatzky
  • Organizer: 第23回放射光学会年会
  • Place of Presentation: 姫路
  • Year and Date: 20100106-20100109
• [Presentation] 放射光X線回折を用いたハーフドープマンガン酸化物の電荷軌道秩序に対するエピタキシャル歪み効果の観測 (2009)
  • Author(s): 奥山大輔、中村優男、熊井玲児、山田浩之、田口康二郎、川崎雅司、十倉好紀
  • Organizer: 物構研シンポジウム
  • Place of Presentation: つくば
  • Year and Date: 20091117-20091118
• [Presentation] Microspectroscopy on the composition-spread manganites with phase competition (2009)
  • Author(s): J.S.Lee, M.Nakamura, D.Okuyama, R.Kumai, T.Arima, M.Kawasaki, Y.Tokura
  • Organizer: 日本物理学会2009年秋季大会
  • Place of Presentation: 熊本
  • Year and Date: 20090925-20090928
• [Presentation] 光電流スペクトルによるモット絶縁体/Nb:SrTiO_3接合界面の評価 (2009)
  • Author(s): 中村優男、澤彰仁、川崎雅司、十倉好紀
  • Organizer: 第70回応用物理学会学術講演会
  • Place of Presentation: 富山
  • Year and Date: 20090908-20090911
• [Presentation] マンガン酸化物超格子における人工金属絶縁体相分離構造 (2009)
  • Author(s): 中村優男、奥山大輔、J.S.Lee、川崎雅司、十倉好紀
  • Organizer: 第56回応用物理学関係連合講演会
  • Place of Presentation: つくば
  • Year and Date: 20090330-20090402
• [Presentation] Pr_<0.5>Ca_<0.5>MnO_3薄膜の軌道放射光による電荷軌道状態の観測とバルク試料との比較 (2009)
  • Author(s): 奥山大輔、中村優男、熊井玲児、山田浩之、田口康二郎、川崎雅司、十倉好紀
  • Organizer: 日本物理学会第64回年次大会
  • Place of Presentation: 東京
  • Year and Date: 20090327-20090330
• [Presentation] Effect of the substrate on the orbital phase transition in a manganite thin film under magnetic field (2009)
  • Author(s): Y.Wakabayashi, H.Sagayama. T.Arima, M.Nakamura, Y.Ogimoto, K.Miyano
  • Organizer: APS March Meeting
  • Place of Presentation: Pittsburgh, USA
  • Year and Date: 20090316-20090320
• [Presentation] Magnetic field control of metal/insulator phase boundaries embedded in manganite superlattices (2009)
  • Author(s): M.Nakamura, D.Okuyama, J.S.Lee, M.Kawasaki, Y.Tokura
  • Organizer: AIST-RIKEN Joint Workshop on Emergent Phenomena of Correlated Materials Okinawa
  • Place of Presentation: Japan
  • Year and Date: 20090304-20090307
• [Remarks] ホームページ等
  • URL: http://www.riken.jp/cmrg/members/nakamura.html