Synthesis and properties of epitaxially-stabilized thin films of correlated electron systems

• Project/Area Number: 19740226
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics II
• Research Institution: The Institute of Physical and Chemical Research
• Principal Investigator: MATSUNO Jobu The Institute of Physical and Chemical Research, 高木磁性研究室, 専任研究員 (00443028)
• Project Period (FY): 2007 – 2008
• Project Status: Completed (Fiscal Year 2008)
• Budget Amount: ¥3,600,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥300,000); Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000); Fiscal Year 2007: ¥2,300,000 (Direct Cost: ¥2,300,000)
• Keywords: 強相関系 / パルスレーザー堆積法 / エピタキシャル薄膜 / 強相関電子系

Research Abstract

パルスレーザー堆積法によりバルク合成不可能なイリジウム酸化物単結晶薄膜を作製した。新規スピネル酸化物Zn_<1-x>Li_xIr_2O_4(0 <= x <= 1.0)において、バンド絶縁体である3価のイリジウム酸化物ZnIr_2O_4にホールをドープすることで伝導度が増大したが、全組成領域で半導体的な伝導を示すことを見出した。ペロブスカイト酸化物SrIrO_3が金属伝導を示す一方でホール係数が降温にしたがって増大する振舞いを見出し、SrIrO_3の輸送現象において強いスピン・軌道相互作用が何らかの役割を果たしている可能性を示唆する結果を得た。

Research Products

• [Journal Article] Local structure anomaly around Ge dopants in Mn_3Cu_<0.7>Ge_<0.3>N with negative thermal expansion (2009)
  • Author(s): J. Matsuno,K. Takenaka,H. Takagi,D. Matsumura,Y. Nishihata,and J. Mizuki
  • Journal Title: Applied Physics Letters 94
  • Peer Reviewed
• [Journal Article] Magnetic field tuning of interface electronic properties in manganite-titanate junctions (2008)
  • Author(s): J. Matsuno,A. Sawa,M. Kawasaki,and Y. Tokura
  • Journal Title: Applied Physics Letters 92
  • Peer Reviewed
• [Journal Article] Magnetic field tuning of interface electronic properties in manganite-titanate junctions (2008)
  • Author(s): J. Matsuno, et al.
  • Journal Title: Applied Physics Letters 92
  • Peer Reviewed
• [Journal Article] Fermi level shift in La_<1-x>Sr_xMO_3 (M = Mn, Fe, Co, and Ni) probed by Schottky-like heteroepitaxial junctions with SrTi0.99Nb0.01O3 (2007)
  • Author(s): A. Sawa,A. Yamamoto,H. Yamada,T. Fujii,M. Kawasaki,J. Matsuno,and Y. Tokura
  • Journal Title: Applied Physics Letters 90
  • Peer Reviewed
• [Journal Article] Ferromagnetic ratchet superlattice with a broken inversion symmetry (2007)
  • Author(s): J. Matsuno,T. Lottermoser,T. Arima,M. Kawasaki,and Y. Tokura
  • Journal Title: Physical Review B 75
  • Peer Reviewed
• [Journal Article] Sr_2VO_4 and Ba_2VO_4 under pressure: An orbital switch and potential d1 superconductor (2007)
  • Author(s): R. Arita,A. Yamasaki,K. Held,J. Matsuno,and K. Kuroki
  • Journal Title: Physical Review B 75
  • Peer Reviewed
• [Journal Article] Design of a d1-analog of cuprates : Sr_2VO_4 and Ba_2VO_4 under pressure (2007)
  • Author(s): R. Arita,A. Yamasaki,K. Held,J. Matsuno,and K. Kuroki
  • Journal Title: Journal of Physics : Condensed Matter 19
  • Peer Reviewed
• [Journal Article] Fermi level shift in La_1_xSr_xMO_3 (M=Mn, Fe, Co, and Ni) probed by Schottky-like heteroepitaxial junctions with SrTio_0.99Nb_0.01O_3 (2007)
  • Author(s): A. Samoa, et. al.
  • Journal Title: Applied Physics Letters 90
  • Peer Reviewed
• [Journal Article] Ferromagnetic ratchet superlattice with a broken inversion symmetry (2007)
  • Author(s): J. Matsuno, et. al.
  • Journal Title: Physical Review B 75
  • Peer Reviewed
• [Journal Article] Sr_2VO_4 and Ba_2VO_4 under pressure: An orbital switch and potential d^1 superconductor (2007)
  • Author(s): R. Arita, et. al.
  • Journal Title: Physical Review B 75 Pages: 174521-5
  • Peer Reviewed
• [Journal Article] Design of d^1 analog of cuprates: Sr_2VO_4 and Ba_2VO_4 under pressure (2007)
  • Author(s): R. Arita, et. al.
  • Journal Title: Journal of Physics: Condensed Matter 19
  • Peer Reviewed
• [Presentation] Epitaxial growth and transport properties of iridate thin films with strong spin-orbit coupling (2009)
  • Author(s): J. Matsuno
  • Organizer: AIST-RIKEN Joint WS on "Emergent Phenomena of Correlated Materials"
  • Place of Presentation: 名護
  • Year and Date: 2009-03-05
• [Presentation] Epitaxial growth and transport properties of iridate thin films with strone spin-orbit coupling (2009)
  • Author(s): J. Matsuno
  • Organizer: AIST-RIKEN Joint WS on "Emergent Phenomena of Correlated Materials"
  • Place of Presentation: 名護
  • Year and Date: 2009-03-05
• [Presentation] 共鳴磁気X線散乱を用いたイリジウム酸化物の短距離スピン相関 (2008)
  • Author(s): 藤山茂樹
  • Organizer: 日本物理学会2008年秋季大会
  • Place of Presentation: 盛岡
  • Year and Date: 2008-09-22
• [Presentation] 新規イリジウム酸化物LiIr_2O_4のエピタキシャル成長 (2008)
  • Author(s): 栗山博道
  • Organizer: 応用物理学会2008年秋季学術講演会
  • Place of Presentation: 春日井
  • Year and Date: 2008-09-04
• [Presentation] 金属-スピン一重項絶縁体転移を示す層状LiVS_2の局所構造解析 (2008)
  • Author(s): 松野丈夫
  • Organizer: 第3回JAEA放射光科学シンポジウム
  • Place of Presentation: 相生
  • Year and Date: 2008-02-29
• [Presentation] 金属-スピン一重項絶縁体転移を示す層状Livs_2の局所構造解析 (2008)
  • Author(s): 松野丈夫
  • Organizer: 第3回JAEA放射光科学シンポジウム
  • Place of Presentation: 相生
  • Year and Date: 2008-02-29
• [Presentation] Local Structure Analysis of Mn_3(Cu,Ge)N with Giant Negative Thermal Expansion (2007)
  • Author(s): J. Matsuno
  • Organizer: The 8th Korea-Japan-Taiwan Symposium on Strongly Correlated Electron Systems
  • Place of Presentation: 仁川, 韓国
  • Year and Date: 2007-11-16
• [Presentation] Local Structure Analysis of Mn3(Cu, Ge)N with Giant Negative Thermal Expansion (2007)
  • Author(s): J. Matsuno
  • Organizer: The 8th Korea-Japan-Taiwan Symposium on Strongly Correlated Electron Systems
  • Place of Presentation: 仁川、韓国
  • Year and Date: 2007-11-16
• [Presentation] 層状LiVS_2における三量体スピン一重項の形成とその圧力効果 (2007)
  • Author(s): 片山尚幸
  • Organizer: 日本物理学会 第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-21
• [Presentation] 層状LiVS_2における三量体スピンー重項の形成とその圧力効果 (2007)
  • Author(s): 片山尚幸
  • Organizer: 日本物理学会 第62回年次大会
  • Place of Presentation: 札幌
  • Year and Date: 2007-09-21
• [Presentation] Local structure analysis of Mn_3(Cu,Ge)N with giant negative thermal expansion (2007)
  • Author(s): J. Matsuno
  • Organizer: 2007 CERC International Symposium
  • Place of Presentation: 東京
  • Year and Date: 2007-05-23
• [Presentation] Local stlructure analysis of Mn_3 (Cu, Ge)N with giant negative thermal expansion (2007)
  • Author(s): J. Matsuno
  • Organizer: 2007 CERC International Symposium
  • Place of Presentation: 東京
  • Year and Date: 2007-05-23
• [Remarks]
  • URL: http://www.riken.jp/lab-www/magmatlab/matsuno/