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Rigorous test of electron-hole symmetry for high- Tc superconductivity using epitaxial thin films

Research Project

Project/Area Number 18340098
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Condensed matter physics II
Research InstitutionTokyo University of Agriculture and Technology

Principal Investigator

NAITO Michio  Tokyo University of Agriculture and Technology, Institute of Symbiotic Science and Technology, professor (40155643)

Project Period (FY) 2006 – 2007
Project Status Completed (Fiscal Year 2007)
Budget Amount *help
¥17,330,000 (Direct Cost: ¥15,200,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2007: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2006: ¥8,100,000 (Direct Cost: ¥8,100,000)
Keywordshigh- T_c superconductors / electronic phase diagram / electron-hole symmetry / Mott-Hubbard insulators / epitaxial thin films / molecular beam epitaxy / metal organic decomposition / 酸化物高温超伝導体
Research Abstract

The playground for high-T_c superconductivity is the CuO_2 plane common to both p- and n-type high-T_c superconductivity, and the electronic phase diagram of high-T_c cuprates is roughly symmetric between p- and n-type doping. Hence, it has been claimed that "electron-hole" symmetry holds for high-T_c superconductivity. Based on this claim, the doped Mott insulator scenario has been widely accepted, in which the parent material is a Mott insulator (anti-ferromagnetic insulator) and high-T_c superconductivity develops when the insulator is exposed to either p- or n-type doping. However, it should be borne in mind that electron-hole symmetry is far from obvious and even surprising. Since the mother compounds of high- T_c superconductors can be regarded as charge-transfer insulators, doped holes go on the oxygen sites but doped electrons go on the Cu sites, which should result in doped carriers with quite different natures. Furthermore it must be emphasized that the argument for the above … More "electron-hole" symmetry is based on a comparison of p- and n-type doping in different structures, namely, hole doping in the K_2NiF_4 (T) structure and electron doping in the Nd_2CuO_4 (T) structure.
In principle, it is desirable to compare hole and electron doping in the same crystal structure. However, such a comparison has not yet been undertaken because it is empirically known in bulk synthesis that hole doping is possible only in octahedral (CuO_6) or pyramidal (CuO_5) cuprates whereas electron doping is possible only in square-planar (CuO_4) cuprates. For example, electron doping in the T structure or hole doping in the T' structure has never been achieved in bulk synthesis. However, in this project we report that Ce can be incorporated into the K_2NiF_4 lattice [T-La_2CuO_4 (LCO)] by employing a low-temperature synthetic route with molecular beam epitaxy (MBE) and that Sr/Ca can be incorporated into the Nd_2CuO_4 lattice by employing a low-temperature synthetic route with metal organic deposition (MOD). The former results revealed that Ce doping makes T-LCO more insulating, which is in sharp contrast to Sr (or Ba) doping in T-LCO, which makes the compound metallic and superconducting. The observed smooth increase in resistivity from the hole-doped side to the electron-doped side indicates that the electron-hole symmetry is broken in the T-phase materials. The latter result revealed that T'-RE_2CuO_4 can be superconducting even with no doping and that hole doping increases T whereas electron doping decreases T_c. Electron-hole symmetry is also broken in the T'-phase materials. Both of the results throw strong skepticism on the currently accepted "doped Mott-insulator scenario" on high- T_c superconductivity. Less

Report

(3 results)
  • 2007 Annual Research Report   Final Research Report Summary
  • 2006 Annual Research Report
  • Research Products

    (61 results)

All 2008 2007 2006 Other

All Journal Article (33 results) (of which Peer Reviewed: 15 results) Presentation (26 results) Patent(Industrial Property Rights) (2 results)

  • [Journal Article] Superconductivity in undoped T'-RE_2CuO_4 with T_c over 30 K2008

    • Author(s)
      0. Matsumoto, et. al.
    • Journal Title

      Physica C (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Undoped cuprate superconductors-band superconductors or oxygen-doped Mott-Hubbard superconductors?2008

    • Author(s)
      M. Naito, et. al.
    • Journal Title

      Journal of Physics: Conference Series 108

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Lattice instability in high-temperature superconducting cuprates probed by x-ray absorption spectroscopy2008

    • Author(s)
      H. Oyanagi, et. al.
    • Journal Title

      Journal of Physics: Conference Series 108

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Epitaxial growth of Gd_<2-x>Ce_xCuO_4 thin films2008

    • Author(s)
      Y. Krockenberger, et. al.
    • Journal Title

      Journal of Physics: Conference Series 108

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Superconductivity phase diagram for the electron-doped cuprates R_<2-x>Ce_xCuO_4(R=La,Pr,Nd,Sm,and Eu)2008

    • Author(s)
      Y. Krockenberger, et. al.
    • Journal Title

      Physical Review B 77

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Undoped cuprate superconductors band superconductors or oxygen-doped Mott-Hubbard superconductors?2008

    • Author(s)
      M., Naito, et. al.
    • Journal Title

      Journal of Physics : Conference Series 108Art No. 012037

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Lattice instability in high-temperature superconducting cuprates probed by x-ray absorption spectroscopy2008

    • Author(s)
      H,. Oyanagi, et. al.
    • Journal Title

      Journal of Physics : Conference Series 108Art No. 012038

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Epitaxial growth of Gd_<2-x>Ce_xCuO_4 thin films2008

    • Author(s)
      Y., Krockenberger, et. al.
    • Journal Title

      Journal of Physics : Conference Series 108Art No. 012041

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Superconductivity phase diagram for the electron-doped cuprates R_<2_x>Ce_xCuO_4 (R = La, Pr, Nd, Sm, and Eu)2008

    • Author(s)
      Y., Krockenberger, et. al.
    • Journal Title

      Physical Review B 77, Art No.060505(R)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Valence of Ce in T and T'-La_<2_x>Ce_xCuO_42008

    • Author(s)
      A., Tsukada, et. al.
    • Journal Title

      Physica C 463-465

      Pages: 64-67

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Epitaxial growth of Gd_<2_x>Ce_xCuO_4 films2008

    • Author(s)
      Y. Krockenberger, et. al.
    • Journal Title

      Journal of Physics: Conference Series 108

      Pages: 12041-12041

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Superconductivity phase diagrams for the electron-doped cuprates R_<2-X>Ce_xCuO_4 (R=La, Pr, Nd, Sm, and Eu)2008

    • Author(s)
      Y. Krockenberger, et. al.
    • Journal Title

      Phys. Rev. B 77

      Pages: 60505-60505

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Valence of Ce in T- and T'-La_<2-x>Ce_xCuO_42007

    • Author(s)
      A. Tsukada, et. al.
    • Journal Title

      Physica C 463-465

      Pages: 64-67

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Local structure of superconducting(La,Sr)_2CuO_4 under strain: Microscopic mechanism of strain-induced T_c variation2007

    • Author(s)
      H. Oyanagi, et. al.
    • Journal Title

      Physical Review B 75

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Local structure of superconducting (La,Sr)_2CuO_4 under strain : Microscopic mechanism of strain-induced T_c variation2007

    • Author(s)
      H., Oyanagi, et. al.
    • Journal Title

      Physical Review B 75Art No. 024511

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Valence of ce in T-and T'-La_<2_x>Ce_xCuO_42007

    • Author(s)
      A. Tsukada, et. al.
    • Journal Title

      Physica C 463

      Pages: 64-67

    • Related Report
      2007 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Local structure of superconducting (La, Sr)_2CuO_4 under strain : Microscopic mechanism of strain-induced Tc variation2007

    • Author(s)
      H.Oyanagi, et al.
    • Journal Title

      Physical Review B 75

      Pages: 24511-24511

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Doping of Ce in T-La_2CuO_4: Rigorous test for electron-hole symmetry for high-T_c superconductivity2006

    • Author(s)
      A. Tsukada
    • Journal Title

      Journal pf Physics: Conference Series 74

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Charge transfer gap for T'-RE_2CuO_4 and T-La_2CuO_4 as estimated from Madelung potential calculations2006

    • Author(s)
      A. Tsukada, et. al.
    • Journal Title

      Physica C 445-448

      Pages: 94-96

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Local structure of(La, Sr)_2CuO_4 under uniaxial strain studied by polarized X-ray absorption spectroscopy2006

    • Author(s)
      H. Oyanagi, et. al.
    • Journal Title

      Journal of Physics and Chemistry of Solids 67

      Pages: 2154-2158

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Three-dimensional superconductivity and vortex glass transition in La_<1.87>Y_<0.13>CuO_42006

    • Author(s)
      H.-S. Lee, et. al.
    • Journal Title

      Physica B 378-380

      Pages: 447-448

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Fluorescence X-ray absorption spectroscopy using a Ge pixel array detector: application to high-temperature superconducting thin-film single crystals"2006

    • Author(s)
      H. Oyanagi, et. al.
    • Journal Title

      Journal of Synchrotron Radiation 13

      Pages: 314-320

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
    • Peer Reviewed
  • [Journal Article] Doping of Ce in T-La_2CuO_4 : Rigorous test for electron-hole symmetry for high-T_c superconductivity2006

    • Author(s)
      A., Tsukada, et. al.
    • Journal Title

      Physical Review B 74 Art No. 174515

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Charge transfer gap for T'-RE_2CuO_4 and T-La_2CuO_4 as estimated from Madelung potential calculations2006

    • Author(s)
      A., Tsukada, et. al.
    • Journal Title

      Physica C 445-448

      Pages: 94-96

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Local structure of (La,Sr)_2CuO_4 under uniaxial strain studied by polarized X-ray absorption spectroscopy2006

    • Author(s)
      H., Oyanagi, et. al.
    • Journal Title

      Journal of Physics and Chemistry of Solids 67

      Pages: 2154-2158

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Three-dimensional superconductivity and vortex glass transition in La_<1.87>Y_<0.13>CuO_42006

    • Author(s)
      H.-s., Lee, et. al.
    • Journal Title

      Physica B 378-380

      Pages: 447-448

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Fluorescence X-ray absorption spectroscopy using a Ge pixel array detector : application to high-temperature superconducting thin-film single crystals2006

    • Author(s)
      H., Oyanagi, et. al.
    • Journal Title

      Journal of Synchrotorn Radiation 13

      Pages: 314-320

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Journal Article] Doping of Ce in T-La_2CuO_4 : Rigorous test for electron-hole symmetry for high-Tc sueprconductivity2006

    • Author(s)
      A Tsukada, et al.
    • Journal Title

      Physical Review B 74

      Pages: 174515-174515

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Charge transfer gap for T'-RE_2CuO_4 and T-La_2CuO_4 as estimated from Madelung potential calculations2006

    • Author(s)
      A Tsukada, et al.
    • Journal Title

      Physica C 445

      Pages: 94-96

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Local structure of (La, Sr)_2CuO_4 uniaxial strain studied by polarized X-ray absorption spectroscopy2006

    • Author(s)
      H.Oyanagi, et al.
    • Journal Title

      Journal of Physics and Chemistry of Solids 67

      Pages: 2154-2158

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Three-dimensional superconductivity and vortex glass transition in La_<1.87>Y_<0.13>CuO_42006

    • Author(s)
      H.S.Lee, et al.
    • Journal Title

      Physica B 378-380

      Pages: 447-448

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Fluorescence X-ray absorption spectroscopy using a Ge pixel array detector : application to high-temperature superconducting thin-film single cryatals2006

    • Author(s)
      H.Oyanagi, et al.
    • Journal Title

      Journal of Synchrotron Radiation 13

      Pages: 314-320

    • Related Report
      2006 Annual Research Report
  • [Journal Article] Superconductivity in undoped T'-RE_2CuO_4 with T_c over 30 K

    • Author(s)
      O., Matsumoto, et. al.
    • Journal Title

      Physica C (to appear)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Superconductivity in undoped T'-RE_2CuO_4 with T_c over 30 K2008

    • Author(s)
      O. Matsumoto, et. al.
    • Organizer
      International Symposium on Superconductivity(ISS2007)
    • Place of Presentation
      つくば国際会議場
    • Year and Date
      2008-11-07
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] ノンドープ銅酸化物T'-RE_2CuO_4の超伝導2008

    • Author(s)
      松本 理, ら
    • Organizer
      第55回応用物理学関係連合講演会
    • Place of Presentation
      日本大学船橋キャンパス
    • Year and Date
      2008-03-27
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] ノンドープ銅酸化物T'-RE_2CuO_4の超伝導(2)2008

    • Author(s)
      宇津木 綾, ら
    • Organizer
      第55回応用物理学関係連合講演会
    • Place of Presentation
      日本大学船橋キャンパス
    • Year and Date
      2008-03-27
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] Superconductivity in undoped cuprate T'-RE_2CuO_42008

    • Author(s)
      O., Matsumoto, et. al.
    • Organizer
      Japan Society of Applied Physics, 55th Spring Meeting
    • Place of Presentation
      Nihon University
    • Year and Date
      2008-03-27
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Superconductivity in undoped cuprate T'-RE_2CuO_4(2)2008

    • Author(s)
      A., Utsuki, et. al.
    • Organizer
      Japan Society of Applied Physics, 55th Spring Meeting
    • Place of Presentation
      Nihon University
    • Year and Date
      2008-03-27
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Superconductivity in undoped T-RE_2CuO_4 with T_c over 30 K2008

    • Author(s)
      M. Naito, et. al.
    • Organizer
      American Physical Society(APS)March Meeting
    • Place of Presentation
      New Orleans, Convention Center
    • Year and Date
      2008-03-12
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Superconductivity in undoped T'-RE_2CuO_4 with T_c over 30 K2008

    • Author(s)
      M., Naito, et. al.
    • Organizer
      American Physical Society (APS) March Meeting
    • Place of Presentation
      New Orleans
    • Year and Date
      2008-03-12
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Superconductivity in undoped T'-RE_2CuO_4 with T_c over 30 K2008

    • Author(s)
      M. Naito, et. al.
    • Organizer
      American Physical Society (APS) March Meeting
    • Place of Presentation
      New Orleans, Convention Center
    • Year and Date
      2008-03-12
    • Related Report
      2007 Annual Research Report
  • [Presentation] Generic electronic Phase diagram of high-T_c superconductors2007

    • Author(s)
      M. Naito, et. al.
    • Organizer
      13th Japan-US Workshop on Advanced Superconductors
    • Place of Presentation
      長良川国際会議場
    • Year and Date
      2007-11-11
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Generic electronic phase diagram of high- Te, superconductors2007

    • Author(s)
      M., Naito, et. al.
    • Organizer
      13th Japan-US Workshop on Advanced Superconductor
    • Place of Presentation
      Nagaragawa International Congress Center
    • Year and Date
      2007-11-11
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Generic electronic phase diagram of high-T_c superconductors2007

    • Author(s)
      M. Naito, et. al.
    • Organizer
      13th Japan-US Workshop on Advanced Superconductors
    • Place of Presentation
      長良川国際会議場
    • Year and Date
      2007-11-11
    • Related Report
      2007 Annual Research Report
  • [Presentation] Superconductivity in undoped T-RE_2CuO_4 with T_c over 30 K2007

    • Author(s)
      O., Matsumoto, et. al.
    • Organizer
      International Symposium on Superconductivity (ISS2007)
    • Place of Presentation
      Tsukuba International Congress Center
    • Year and Date
      2007-11-07
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Superconductivity in undoped T'-RE_2CuO_4 with T_c over 30 K2007

    • Author(s)
      O. Matsumoto, et. al.
    • Organizer
      International Symposium on Superconductivity (ISS2007)
    • Place of Presentation
      つくば国際会議場
    • Year and Date
      2007-11-07
    • Related Report
      2007 Annual Research Report
  • [Presentation] Undoped cuprate superconductors-band superconductors or oxygen-doped Mott-Hubbard superconductors?2007

    • Author(s)
      M. Naito, et. al.
    • Organizer
      International Symposium on Lattice Effect in Cuprate High Temperature Superconductors(LEHTSC2007)
    • Place of Presentation
      産業技術総合研究所大会議場
    • Year and Date
      2007-11-02
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Undoped cuprate superconductors band superconductors or oxygen-doped Mott-Hubbard superconductors?2007

    • Author(s)
      M., Naito, et. al.
    • Organizer
      International Symposium on Lattice Effect in Cuprate High Temperature Superconductors (LEHTSC2007)
    • Place of Presentation
      National Institute of Industrial Science and Technology (AIST)
    • Year and Date
      2007-11-02
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Undoped cuprate superconductors-band superconductors or oxygen-doped Mott-Hubbard superconductors?2007

    • Author(s)
      M. Naito, et. al.
    • Organizer
      International Symposium on Lattice Effect in Cuprate High Temperature Superconductors (LEHTSC2007)
    • Place of Presentation
      産業技術総合研究所大会議場
    • Year and Date
      2007-11-02
    • Related Report
      2007 Annual Research Report
  • [Presentation] 塗布熱分解法によるLa_<2-x>RE_xCuO_4薄膜の作製(4)2007

    • Author(s)
      松本 理, ら
    • Organizer
      第68回応用物理学会学術講演会
    • Place of Presentation
      北海道工業大学
    • Year and Date
      2007-09-04
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Annual Research Report 2007 Final Research Report Summary
  • [Presentation] Preparation of La_<2-x>RE_xCuO_4 thin films by coating-pyrolysis process (4)2007

    • Author(s)
      O., Matsumoto, et. al.
    • Organizer
      Japan Society of Applied Physics, 68th Autumn Meeting
    • Place of Presentation
      Hokkaid Insitute of Technology
    • Year and Date
      2007-09-04
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 塗布熱分解法によるLa_<2-x>RE_xCuO_4薄膜の作製(3)2007

    • Author(s)
      松本 理, ら
    • Organizer
      第54回応用物理学関係連合講演会
    • Place of Presentation
      青山学院大学
    • Year and Date
      2007-03-27
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Preparation of La_<2-x>RE_xCuO_4 thin films by coating-pyrolysis process (3)2007

    • Author(s)
      O., Matsumoto, et. al.
    • Organizer
      Japan Society of Applied Physics, 54th Spring Meeting
    • Place of Presentation
      Aovama Gakuin University
    • Year and Date
      2007-03-27
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Superconductivity in "undoped" cuprates achieved via novel nanostructure in thin films2006

    • Author(s)
      M. Naito, et. al.
    • Organizer
      The 2nd CREST Nano-Virtual-Labs Joint Workshop on Superconductivity(NVLS2006)
    • Place of Presentation
      京都リサーチパーク
    • Year and Date
      2006-12-13
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Superconductivity in "undoped" cuprates achieved via novel nanostructure in thin films2006

    • Author(s)
      M., Naito, et. al.
    • Organizer
      The 2nd CREST Nano-Virtual-Labs Joint Workshop on Superconductivity (NVLS2006)
    • Place of Presentation
      Kyoto Research Park
    • Year and Date
      2006-12-13
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Valence of Ce in T-and T'-La_<2_x>Ce_xCuO_42006

    • Author(s)
      A. Tsukada, et. al.
    • Organizer
      International Symposium on Superconductivity(ISS2006)
    • Place of Presentation
      名古屋国際会議場
    • Year and Date
      2006-10-31
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Valence of Ce in T- and T'-La_<2-x>Ce_xCuO_42006

    • Author(s)
      A., Tsukada, et. al.
    • Organizer
      International Symposium on Superconductivity (ISS2006)
    • Place of Presentation
      Nagoya International Congress Center
    • Year and Date
      2006-10-31
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] 塗布熱分解法によるLa_<2-x>RE_xCuO_4薄膜の作製(2)2006

    • Author(s)
      松本 理, ら
    • Organizer
      第67回応用物理学会学術講演会
    • Place of Presentation
      立命館大学
    • Year and Date
      2006-08-29
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Presentation] Preparation of La_<2-x>RE_xCuO_4 thin films by coating-pyrolysis process (2)2006

    • Author(s)
      O., Matsumoto, et. al.
    • Organizer
      Japan Society of Applied Physics, 67th Autumn Meeting
    • Year and Date
      2006-08-29
    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 超伝導体及びその製造方法2007

    • Inventor(s)
      内藤方夫, 他1名
    • Industrial Property Rights Holder
      内藤方夫, 他1名
    • Industrial Property Number
      2007-281569
    • Filing Date
      2007-10-30
    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2007 Final Research Report Summary
  • [Patent(Industrial Property Rights)] 超伝導体及びその製造方法2007

    • Inventor(s)
      内藤方夫, 他
    • Industrial Property Rights Holder
      内藤方夫, 他
    • Industrial Property Number
      2007-281569
    • Filing Date
      2007-10-30
    • Related Report
      2007 Annual Research Report

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Published: 2006-04-01   Modified: 2020-05-15  

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