Development of nano-spin current conductors

2010 Fiscal Year Final Research Report

• Project/Area Number: 20360012
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Applied materials science/Crystal engineering
• Research Institution: National Institute for Materials Science
• Principal Investigator: YAMAURA Kazunari National Institute for Materials Science, 超伝導材料センター, 主幹研究員 (70391216)
• Co-Investigator(Renkei-kenkyūsha): MUROMCHI Eiji 独立行政法人物質・材料研究機構, 超伝導材料センター, グループリーダー (30343833) ; ARAI Masao 独立行政法人物質・材料研究機構, 計算科学センター, 主幹研究員 (40222723)
• Project Period (FY): 2008 – 2010
• Keywords: スピントロニクス

Research Abstract

We investigated the electronic properties of the vanadium oxide to test its possibility for unusual half-metal, which is expected highly useful for practical applications. In addition, we searched for a compound which has a similar electronic state with what the vanadium oxide has. We found thus far the post-perovskite rhodium oxide likely has the state. Further studies may judge the possibilities.

Research Products

• [Journal Article] Magnetic Properties of High-Pressure Phase of CaRuO_3 with Post-perovskite Structure (2010)
  • Author(s): Y.Shirako, H.Satsukawa, H.Kojitani, T.Katsumata, M.Yoshida, Y.Inaguma, K.Hiraki, T.Takahashi, K.Yamaura, E.Takayama-Muromachi, M.Akaogi
  • Journal Title: Journal of Physics : Conference Series 215 Pages: 012038
  • Peer Reviewed
• [Journal Article] High-pressure crystal growth and magnetic and electrical properties of the quasi-one dimensional osmium oxide Na_2OsO_4 (2010)
  • Author(s): Y.G.Shi, Y.F.Guo, S.Yu, M.Arai, A.A.Belik, A.Sato, K.Yamaura, E.Takayama-Muromachi, T.Varga, J.F.Mitchell
  • Journal Title: J.Solid State Chem. 183 Pages: 402-407
  • Peer Reviewed
• [Journal Article] Magnetic properties of the sodium-osmium-oxide pyrochlore (2010)
  • Author(s): Y.G.Shi, A.A.Belik, M.Tachibana, M.Tanaka, Y.Katsuya, K.Kobayashi, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: Journal of Physics : Conference Series 200 Pages: 012185
  • Peer Reviewed
• [Journal Article] Crystal growth and structure and magnetic properties of the 5d oxide Ca_3LiOsO_6 : extended superexchange magnetic interaction in oxide (2010)
  • Author(s): Y.Shi, Y.Guo, S.Yu, M.Arai, A.Sato, A.A.Belik, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: J.Am.Chem.Soc. 132 Pages: 8474-8483
  • Peer Reviewed
• [Journal Article] Spin-glass behavior of the NiAs-type Fe1.5Sb prepared under high-pressure (2010)
  • Author(s): Y.F.Guo, Y.G.Shi, S.Yu, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: Physica C 470 Pages: S428-S429
  • Peer Reviewed
• [Journal Article] Large decrease in the critical temperature of superconducting LaFeAsO_<0.85> compounds doped with 3% atomic weight of nonmagnetic Zn impurities (2010)
  • Author(s): Y.F.Guo, Y.G.Shi, S.Yu, A.A.Belik, Y.Matsushita, M.Tanaka, Y.Katsuya, K.Kobayashi, I.Nowik, I.Felner, V.P.S.Awana, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: Phys.Rev.B 82 Pages: 054506
  • Peer Reviewed
• [Journal Article] Tight relation between the oxygen deficiency and Tc in LaFeAsO1-δ (2010)
  • Author(s): Y.F.Guo, Y.G.Shi, S.Yu, A.A.Belik, Y.Matsushita, M.Tanaka, Y.Katsuya, K.Kobayashi, Y.Hata, H.Yasuoka, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: Physica C 470 Pages: S438-S439
  • Peer Reviewed
• [Journal Article] Synthesis and physical properties of FeSe1/2Te1/2 superconductor (2010)
  • Author(s): V.P.S.Awana, A.Pal, A.Vajpayee, M.Mudgel, H.Kishan, S.Yu, Y.F.Guo, Y.G.Shi, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: J.Appl.Phys. 107 Pages: 09E128
  • Peer Reviewed
• [Journal Article] Superconductivity in SmFe_<1-x>CoxAsO (x=0.0-0.30) (2010)
  • Author(s): V.P.S.Awana, A.Pal, A.Vajpayee, R.S.Meena, H.Kishan, K.S.Krishnan, M.Husain, S.Yu, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: J.Appl.Phys. 107 Pages: 09E146
  • Peer Reviewed
• [Journal Article] From weak magnetism (Spin Density WaveSDW) to hidden superconductivity and finally the ferromagnetic phase diagram for SmFe_<1-x>RuxAsO system with x=0.0 to 0.50 (2010)
  • Author(s): V.P.S.Awana, A.Pal, A.Vajpayee, M.Husain, K.Yamaura, E.Takayama-Muromachi, H.Kishan
  • Journal Title: Physica C 470 Pages: S424-S425
  • Peer Reviewed
• [Journal Article] Magnetic phase transitions in SmCoAsO (2010)
  • Author(s): V.P.S.Awana, I.Nowik, A.Pal, K.Yamaura, E.Takayama-Muromachi, I.Felner
  • Journal Title: Phys. Rev. B 81 Pages: 212501
  • Peer Reviewed
• [Journal Article] Post-perovskite Transitions in CaB4+O3 at High Pressure (2010)
  • Author(s): M.Akaogi, Y.Shirako, H.Kojitani, S.Takamori, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: Journal of Physics : Conference Series 215 Pages: 012095
  • Peer Reviewed
• [Journal Article] Synthesis and magnetic and charge transport properties of the correlated 4d post-perovskite CaRhO_3 (2009)
  • Author(s): K.Yamaura, Y.Shirako, H.Kojitani, M.Arai, D.P.Young, M.Akaogi, M.Nakashima, T.Katsumata, Y.Inaguma, E.Takayama-Muromachi
  • Journal Title: J.Am.Chem.Soc. 131 Pages: 2722-2726
  • Peer Reviewed
• [Journal Article] A Ca substitution study of NaV_2O_4 : High-pressure synthesis of the Na_<1-x>CaxV_2O_4 solid solution (2009)
  • Author(s): T.Varga, J.F.Mitchell, K.Yamaura, D.G.Mandrus, J.Wang
  • Journal Title: Solid State Sciences 11 Pages: 694-699
  • Peer Reviewed
• [Journal Article] High-pressure phase transitions of CaRhO_3 perovskite (2009)
  • Author(s): Y.Shirako, H.Kojitani, M.Akaogi, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: Phys.Chem.Minerals 36 Pages: 455-462
  • Peer Reviewed
• [Journal Article] Superconducting properties of the oxygen-vacant iron oxyarsenide TbFeAsO1-δ from underdoped to overdoped compositions (2009)
  • Author(s): Y.G.Shi, S.Yu, A.A.Belik, Y.Matsushita, M.Tanaka, Y.Katsuya, K.Kobayashi, Y.Hata, H.Yasuoka, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: Phys.Rev.B 80 Pages: 104501
  • Peer Reviewed
• [Journal Article] Continuous metal-insulator transition of the antiferromagnetic perovskite NaOsO3 (2009)
  • Author(s): Y.G.Shi, Y.F.Guo, S.Yu, M.Arai, A.A.Belik, A.Sato, K.Yamaura, E.Takayama-Muromachi, H.F.Tian, H.X.Yang, J.Q.Li, T.Varga, J.F.Mitchell, S.Okamoto
  • Journal Title: Phys.Rev.B 80 Pages: 161104(R)
  • Peer Reviewed
• [Journal Article] Magnetic and charge transport properties of the Na-based Os oxide pyrochlore (2009)
  • Author(s): Y.G.Shi, A.A.Belik, M.Tachibana, M.Tanaka, Y.Katsuya, K.Kobayashi, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: J.Solid State Chem. 182 Pages: 881-887
  • Peer Reviewed
• [Journal Article] High-resolution photoemission study of NaV_2O_4 (2009)
  • Author(s): T.Qian, K.Nakayama, Y.J.Sun, T.Sato, T.Takahashi, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: J.Phys.Soc.Jpn. 78 Pages: 024709
  • Peer Reviewed
• [Journal Article] Crystal structure and electronic and thermal properties of TbFeAsO_<0.85> (2009)
  • Author(s): N.Kaurav, Y.T.Chung, Y.K.Kuo, R.S.Liu, T.S.Chan, J.M.Chen, J.-F.Lee, H.-S.Sheu, X.L.Wang, S.X.Dou, S.I.Lee, Y.G.Shi, A.A.Belik, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: Appl.Phys.Lett. 94 Pages: 192507
  • Peer Reviewed
• [Journal Article] Synthesis of SmFeAsO by an Easy and Versatile Route and its Physical Property Characterization (2009)
  • Author(s): V.P.S.Awana, A.Pal, A.Vajpayee, H.Kishan, G.A.Alvarez, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: J.Appl.Phys. 105 Pages: 07E316
  • Peer Reviewed
• [Journal Article] Superconductivity and structure of η-Mo_3C_2 (2008)
  • Author(s): K.Yamaura, Q.Huang, E.Takayama-Muromachi
  • Journal Title: Physica C 468 Pages: 1135-1137
  • Peer Reviewed
• [Journal Article] Synthesis and superconducting properties of the iron oxyarsenide TbFeAsO_<0.85> (2008)
  • Author(s): Y.G.Shi, S.Yu, A.A.Belik, Y.Matsushita, M.Tanaka, Y.Katsuya, K.Kobayashi, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: J.Phys.Soc.Jpn. 77 Pages: 155-157
  • Peer Reviewed
• [Journal Article] Comparative study of the electronic structures of SrMO3 (M=Ti, V, Mn, Fe, and Co; M=Zr, Mo, Ru, and Rh) by O 1s x-ray absorption spectroscopy (2008)
  • Author(s): H.-J.Noh, B.J.Kim, S.-J.Oh, J.-H.Park, H.-J.Lin, C.T.Chen, Y.S.Lee, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: J.Phys.Cond.Matter 20 Pages: 485208
  • Peer Reviewed
• [Journal Article] Mn-Si-Catalyzed Synthesis and Tip-End-Induced Room Temperature Ferromagnetism of SiC/SiO2 Core-Shell Heterostructures (2008)
  • Author(s): B.Liu, Y.Bando, C.Tang, M.Mitome, K.Yamaura, E.Takayama-Muromachi, D.Golberg
  • Journal Title: J.Phys.Chem.C 112 Pages: 18911-18915
  • Peer Reviewed
• [Journal Article] High-pressure synthesis and magnetic properties of the niobio-cuprate Nb_<0.9>Sr_2HoCu_<2.1>O_<7.9> (2008)
  • Author(s): S.Balamurugan, K.Yamaura, E.Takayama-Muromachi
  • Journal Title: Physica C 468 Pages: 1206-1209
  • Peer Reviewed
• [Journal Article] Magnetic and Transport and Structure Properties of the Room Temperature Ferromagneto Sr_<1-x>Ho_xCoO_<3-δ> (2008)
  • Author(s): S.Balamurugan, K.Yamaura, A.Asthana, A.Ubaldini, Y.Matsui, E.Takayama-Muromachi
  • Journal Title: J.Appl.Phys. 103 Pages: 07B903
  • Peer Reviewed
• [Presentation] Post-perovskite transition in NaNiF3 (2010)
  • Author(s): Y.Shirako; H.Kojitani; K.Yamaura; E.Takayama-Muromachi; M.Akaogi
  • Organizer: The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem)
  • Place of Presentation: Honolulu, Hawaii, USA
  • Year and Date: 20101215-20101220
• [Presentation] Continuous metal-insulator transition at 410 K of the antiferromagnetic perovskite NaOsO3 (2010)
  • Author(s): Y.Shi; K.Yamaura; Y.Guo; S.Yu; M.Arai; B.Alexei; A.Sato; E.Takayama-Muromachi
  • Organizer: The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem)
  • Place of Presentation: Honolulu, Hawaii, USA
  • Year and Date: 20101215-20101220
• [Presentation] First-principles study of electronic structure in perovskite NaOsO3 and related compounds (2010)
  • Author(s): M.Arai; Y.G.Shi; Y.F.Guo; S.Yu; K.Yamaura; E Takayama-Muromachi
  • Organizer: The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem)
  • Place of Presentation: Honolulu, Hawaii, USA
  • Year and Date: 20101215-20101220
• [Presentation] Measurement of Hall Coefficient on Perovskite Oxide NaOsO3 (2010)
  • Author(s): S.Yu; Y.G.Shi; Y.F.Guo; M. Arai; A.A.Belik; A.Sato; K.Yamaura; E.Takayama-Muromachi
  • Organizer: The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem)
  • Place of Presentation: Honolulu, Hawaii, USA
  • Year and Date: 20101215-20101220
• [Presentation] High-pressure crystal growth and magnetic and electrical properties of the quasi-one dimensional osmium oxide Na2OsO4 (2010)
  • Author(s): 山浦一成
  • Organizer: The 2010 International Chemical Congress of Pacific Basin Societies (Pacifichem)
  • Place of Presentation: Honolulu, Hawaii, USA
  • Year and Date: 20101215-20101220
• [Presentation] Crystal growth and magnetic properties of the osmium oxides (2010)
  • Author(s): 山浦一成
  • Organizer: 2010 MRS Fall Meeting, Hynes Convention Center
  • Place of Presentation: Boston, Massachusetts, USA
  • Year and Date: 20101129-20101203
• [Presentation] Drastic suppression of the superconductivity of LaFeAsO0.85 by a nonmagnetic impurity (2010)
  • Author(s): Y.F.Guo, Y.G.Shi, K.Yamaura, E.Takayama-Muromachi
  • Organizer: International Congress on Ceramics, Osaka Convention Center
  • Place of Presentation: Osaka, Japan
  • Year and Date: 20101114-20101118
• [Presentation] The effect of oxygen deficiencies in Sr4Sc2OxFe2As2 prepared by high pressure method (2010)
  • Author(s): S.B.Zhang, Y.F.Guo, Y.G.Shi, K.Yamaura, E.Takayama-Muromachi
  • Organizer: International Congress on Ceramics, Osaka Convention Center
  • Place of Presentation: Osaka, Japan
  • Year and Date: 20101114-20101118
• [Presentation] Effect of zinc impurity on the optimally carrier doped superconductor BaFe1.87Co0.13As2 (2010)
  • Author(s): J.J.Li, Y.F.Guo, Y.G.Shi, S.Yu, K.Yamaura, E.Takayama-Muromachi
  • Organizer: International Congress on Ceramics, Osaka Convention Center
  • Place of Presentation: Osaka, Japan
  • Year and Date: 20101114-20101118
• [Presentation] High-pressure studies toward discovery of new superconducting materials (2010)
  • Author(s): 山浦一成
  • Organizer: EU-Japan workshop "Chemistry Guided Development of Useful Superconductors"
  • Place of Presentation: Chalmers University of Technology, Gothenburg, Sweden
  • Year and Date: 20101105-20101107
• [Presentation] Nonmagnetic impurity effect on the optimally carrier doped superconductor BaFe1.87Co0.13As2 prepared at ambient pressure (2010)
  • Author(s): J.J.Li, Y.F.Guo, S.B.Zhang, S.Yu, Y.Tsujimoto, K.Yamaura, E.Takayama-Muromachi
  • Organizer: International Symposium on Superconductivity (ISS2010)
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 20101101-20101103
• [Presentation] Superconductivity of the platinum doped 122 iron arsenide SrFe2-xPtxAs2 (2010)
  • Author(s): S.B.Zhang, Y.F.Guo, J.J.Li, X.X.Wang, K.Yamaura, E.Takayama-Muromachi
  • Organizer: International Symposium on Superconductivity (ISS2010)
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 20101101-20101103
• [Presentation] Thermal evolution of the crystal structure of the correlated 4d post-perovskite CaRhO3 (2010)
  • Author(s): X.X.Wang, Y.F.Guo, Y.Shirako, M.Akaogi, K.Yamaura, E.Takayama-Muromachi
  • Organizer: International Symposium on Superconductivity (ISS2010)
  • Place of Presentation: Tsukuba, Japan
  • Year and Date: 20101101-20101103
• [Presentation] The effect of oxygen deficiencies in Sr4Sc2OxFe2As2 (2010)
  • Author(s): S.B.Zhang, Y.F.Guo, Y.G.Shi, J.J.Li, K.Yamaura, E.Takayama-Muromachi
  • Organizer: 11th IUMRS International Conference in Asia
  • Place of Presentation: Qingdao International Convention Center, Qingdao, China
  • Year and Date: 20100925-20100928
• [Presentation] Drastic suppression of the superconductivity of LaFeAsO0.85 by a nonmagnetic impurity (2010)
  • Author(s): Y.F.Guo, S.B.Zhang, Y.G.Shi, J.J.Li, S.Yu, K.Yamaura, E.Takayama-Muromachi
  • Organizer: 11th IUMRS International Conference in Asia
  • Place of Presentation: Qingdao International Convention Center, Qingdao, China
  • Year and Date: 20100925-20100928
• [Presentation] New materials research: crystal growth and magnetic properties of the perovskite osmium oxide and related compounds (2010)
  • Author(s): 山浦一成
  • Organizer: Gordon Research Conferences
  • Place of Presentation: Colby-Sawyer College, New London, NH, USA
  • Year and Date: 20100801-20100806
• [Presentation] ペロブスカイト型オスミウム酸化物NaOsO3の合成と金属絶縁体転移 (2010)
  • Author(s): 山浦一成, Y.G.Shi, Y.F.Guo, S.Yu, 新井正男, A.A.Belik, 佐藤晃, 室町英治, H.F.Tian, H.X.Yang, J.Q.Li, T.Varga, J.F.Mitchell
  • Organizer: 日本化学会第90春季年会(2010)、近畿大学本部キャンパス
  • Place of Presentation: 大阪府東大阪市
  • Year and Date: 20100326-20100329
• [Presentation] Drastic suppression of the superconductivity of LaFeAsO0.85 by a nonmagnetic impurity (2010)
  • Author(s): Y.F.Guo, Y.G.Shi, S.Yu, A.A.Belik, V.P.S.Awana, K.Yamaura, E.Takayama-Muromachi
  • Organizer: 日本物理学会65回年、岡山大学津島キャンパス
  • Place of Presentation: 岡山県岡山市
  • Year and Date: 20100320-20100323
• [Presentation] High-pressure crystal growth and magnetic and electrical properties of the quasi-one dimensional osmium oxide Na2OsO4 (2010)
  • Author(s): K.Yamaura, Y.G.Shi, Y.F.Guo, S.Yu, M.Arai, A.A.Belik, A.Sato, E.Takayama-Muromachi, T.Varga, J.F.Mitchell
  • Organizer: APS March meeting
  • Place of Presentation: Portland, Oregon, USA
  • Year and Date: 20100315-20100319