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2005 Fiscal Year Final Research Report Summary

Development of thermoelectric devices based on strongly correlated cobalt compounds

Research Project

Project/Area Number 14205095
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Inorganic materials/Physical properties
Research InstitutionTohoku University

Principal Investigator

KAJITANI Tsuyoshi  Tohoku University, Graduate School of Engineering, Professor, 大学院・工学研究科, 教授 (80134039)

Co-Investigator(Kenkyū-buntansha) MIYAZAKI Yuzuru  Tohoku University, Graduate School of Engineering, Associate Professor, 大学院・工学研究科, 助教授 (40261606)
ONO Yasuhiro  Tohoku University, Graduate School of Engineering, Research Associate, 大学院・工学研究科, 助手 (30211832)
GOTOH Takashi  Tohoku University, Institute for Materials Research, Professor, 金属材料研究所, 教授 (60125549)
Project Period (FY) 2002 – 2005
KeywordsThermoelectric semiconductors / Seebeck coefficient / Thermoelectric conversion / PLD method / Electron Microscopy / Incommensurated periodicity / CDW transition / Ion-exchange method
Research Abstract

□Thermoelectric thin layered samples ;
By means of the pulsed laser deposition (PLD) technique, which was realized by the financial aid from JSPS under the present contract, following research results were obtained.
1. Smooth and well oriented La_<0.7>Ca_<0.3>MnO_3, La_<0.4>Sr_<0.6>CoO_3 and SrTiO_3 thin films with the thickness in the range from 5nm to 100nm were successfully grown by the PLD method.
2. Very smooth, e.g., the RMS of the surface roughness was about 0.5nm, thin oxide films were grown by PLD method at the optimized environment gas pressure and substrate temperature.
3. Flat and smooth La_<0.7>Ca_<0.3>MnO_3/La_<0.4>Sr_<0.6>CoO_3 multi-layer sample was grown by the PLD method and Shottky barrier height between two layers was measured. The barrier height was 0.6V, being too high for the thermionic devices.
□Following results were obtained for bulk samples ;
1. Many thin plate single crystals of Ca349 were grown by the flux-growth method. Grown single crystals have electrically co … More nducting c-planes parallel to the flat surfaces. These thin plates were carefully aligned parallel to the graphite die bottom and sintered by the spark plasma sintering (SPS) machine controlled at about 900 Celsius degree under the pressure at about 20MPa. Obtained block exhibit high thermoelectric property, i.e., ZT=0.4 at 1000K.
2. Nearly isomorphic thermoelectric bismuth-rhodium and -cobalt oxides were elucidated. Following results have been obtained. Chemical properties of both systems are quite similar.
(1)Crystal structure of thermoelectric Bi-(Sr,Ba)-Rh-O was studied by EPMA and TEM. Four or five dimensional structure model was obtained from the determined chemical contents and HREM images.
(2)Crystal structure of thermoelectric Bi-(Sr,Ca)-Rh-O was studied by EPMA and TEM. Four or five dimensional structure model was obtained from the determined chemical contents and HREM images.
(3)Thermoelectric properties of Ba, Sr or Ca substituted γ-Na_<0.7>CoO_2 samples, which were synthesized by the ion-exchange technique, were studied and their crystal structures were determined by TEM and X-ray diffraction measurement. Most of the crystals were incommensurated CDW phases. Less

  • Research Products

    (83 results)

All 2006 2005 2004 2003 2002 Other

All Journal Article (74 results) Book (6 results) Patent(Industrial Property Rights) (3 results)

  • [Journal Article] Spin state transition in Ca-doped Na_<0.7>CoO_2 with the nominal Co valence below 3.162006

    • Author(s)
      J.Sugiyama
    • Journal Title

      Solid State Comm. 137

      Pages: 36-40

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Modulated Structure of the Misfit-layered Compound [Bi_<1.94>Ba_<1.83>O_y]_<0.56>[RhO_2]2006

    • Author(s)
      K.Yubuta
    • Journal Title

      Jpn. J.Appl. Phys. 45

      Pages: 179-185

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Modulated Structure of the misfit layered Compound [Bi_<2.08>Sr_<1.67>O_y]_<0.54>[CoO_2]2006

    • Author(s)
      K.Yubuta
    • Journal Title

      Jpn. J.Appl. Phys. (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Modulated Structure of Misfit-Layered Compounds in Bi-Ca-Co-O2006

    • Author(s)
      K.Yubuta
    • Journal Title

      Jpn. J.Appl. Phys. (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Crystal Structure of Sr_<0.35>CoO_2 Compound Stdied by High-resolution Electron Microscopy2006

    • Author(s)
      K.Yubuta
    • Journal Title

      Jpn. J.Appl. Phys. (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Superspace Group Approach to the Crystal Structure of Na_<0.5>CoO_2 : A Commensurate Misfit-Layered2006

    • Author(s)
      D.Igarashi
    • Journal Title

      Chem. Mat. (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Static and Dynamic Corrugation of Thermoelectric Cobaltites2006

    • Author(s)
      T.Kajitani
    • Journal Title

      Trans. MRS-J (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Shear-type Modulated Structure of Bi_<2.49>Sr_<2.00>Co_<2.22>O_x2006

    • Author(s)
      K.Yubuta
    • Journal Title

      Trans. MRS-J (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Interplay between structure and magnetic properties in a perovskite manganite2006

    • Author(s)
      S.Begum
    • Journal Title

      J.Phys.Chem.. Solids (印刷中)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Crystal Structure of Misfit-Layered Compound [Bi_<1.94>Ba_<1.83>O_y]_<0.56>[RhO_2]2006

    • Author(s)
      K.Yubuta
    • Journal Title

      Jpn.J.Appl.Phys. 45

      Pages: 179-185

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Modulated Structure of the misfit layered Compound [Bi_<2.08>Sr_<1.67>O_y]_<0.54>[CoO_2]2006

    • Author(s)
      K.Yubuta
    • Journal Title

      Jpn.J.Appl.Phys. (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Modulated Structure of Misfit-Layered Compounds in Bi-Ca-Co-O2006

    • Author(s)
      K.Yubuta
    • Journal Title

      Jpn.J.Appl.Phys. (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Crystal Structure of Sr_<0.35>CoO_2 Compound Stdied by High-resolution Electron Microscopy2006

    • Author(s)
      K.Yubuta
    • Journal Title

      Jpn.J.Appl.Phys. (submitted)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Superspace Group Approach to the Crystal Structure of Na_<0.5>CoO_2 : A Commensurate Misfit-Layered2006

    • Author(s)
      D.Igarashi
    • Journal Title

      Chem.Mat. (submitted)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Static and Dynamic Corrugation of Thermoelectric Cobaltites2006

    • Author(s)
      T.Kajitani
    • Journal Title

      Trans.MRS-J (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Shear-type Modulated Structure of Bi_<2.49>Sr_<2.00>Co_<2.22>O_x2006

    • Author(s)
      K.Yubuta
    • Journal Title

      Trans.MRS-J (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Interplay between structure and magnetic properties in a perovskite manganite2006

    • Author(s)
      S.Begum
    • Journal Title

      J.Phys.Chem.Solids (in press)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Crystal Structure of Thermoelectric Compound [Bi_<1.79>Sr_<1.98>O_y]_<0.63>[RhO_2]2005

    • Author(s)
      K.Yubuta
    • Journal Title

      Jpn. J.Appl.Phys. 44

      Pages: 8557-8561

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Compounds and subsolidus phase relations in the CaO-Co_3O_4-CuO system2005

    • Author(s)
      Y.Miyazaki
    • Journal Title

      J.Solid State Chem. 178

      Pages: 2973-2979

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Search for Orbital Excitation in YTiO_3 by Neutron Scattering2005

    • Author(s)
      S.Shamoto
    • Journal Title

      J.Neutron Res. 13

      Pages: 175-178

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Synthesis and Thermoelectric Properties of Misfit Cobaltites, [Bi_<2-δ>Sr_<2-x>Co_xO_2]_<RS>[CoO_2]_p2005

    • Author(s)
      S.Begum
    • Journal Title

      Trans. MRS-J 30

      Pages: 495-497

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Bismuth Substitution Effect on the Structure and Thermoelectric Properties of [Ca_2CoO_3]_pCoO_22005

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Trans. MRS-J 30

      Pages: 499-502

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Cold neutron inelastic scattering study for Co-121 and related cobaltites2005

    • Author(s)
      T.Kajitani
    • Journal Title

      Trans. MRS-J 30

      Pages: 507-510

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Single Crystal Growth of β -Ca_xCoO_2(x ≒ 0.5) by Flux Growth Technique2005

    • Author(s)
      X.Y.Huang
    • Journal Title

      Trans. MRS-J 30

      Pages: 511-513

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Crystal Structure of Thermoelectric Compound [Bi_<1.79>Sr_<1.98>O_y]_<0.63>[RhO_2]2005

    • Author(s)
      K.Yubuta
    • Journal Title

      Jpn.J.Appl.Phys. 44

      Pages: 8557-8561

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Synthesis and Thermoelectric Properties of Misfit Cobaltites, [Bi_<2-δ>Sr_<2-x>Co_xO_2]_<RS>[CoO_2]_p2005

    • Author(s)
      S.Begum
    • Journal Title

      Trans.MRS-J 30

      Pages: 495-497

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Bismuth Substitution Effect on the Structure and Thermoelectric Properties of [Ca_2CoO_3]_pCoO_22005

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Trans.MRS-J 30

      Pages: 499-502

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Cold neutron inelastic scattering study for Co-121 and related cobaltites2005

    • Author(s)
      T.Kajitani
    • Journal Title

      Trans.MRS-J 30

      Pages: 507-510

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Single Crystal Growth of β-Ca_xCoO_2(x≒0.5) by Flux Growth Technique2005

    • Author(s)
      X.Y.Huang
    • Journal Title

      Trans.MRS-J 30

      Pages: 511-513

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Preparation and Thermoelectric Properties of Misfit-Layered Sulfide [Yb_<1.90>S_2]_<0.62>NbS_22004

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Jpn.J.Appl.Phys. 43

      Pages: L1202-L1204

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Transport Properties of Ca-doped γ-Na_xCoO_22004

    • Author(s)
      Y.Ono
    • Journal Title

      J.Ceram.Soc.Jpn. Suppl.112

      Pages: S626-S628

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Structural Study on Na_xHfNCl System2004

    • Author(s)
      S.Shamoto
    • Journal Title

      Physica C 402

      Pages: 283-292

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Valence-band photoemission study of β -ZrNCl and the quasi-two-dimensional superconductor Na_xZrNCl2004

    • Author(s)
      T.Yokoya
    • Journal Title

      Phys.Rev. B 70

      Pages: 193103

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Modulated Structure of Misfit Layered Cobalt Oxide [(Ca_<0.90>Bi_<0.10>)_2(Co_<0.95>Bi_<0.05>)O_3]_pCoO_22004

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Jpn. J.Appl.Phys. 43

      Pages: 6252-6258

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Electrical Transport Properties of NbCoSn-based Half-Heusler Alloys2004

    • Author(s)
      Y.Ono
    • Journal Title

      Proceedings of the 23^<rd> International Conference on Thermoelectrics (ITC 2004) (CD-ROM#014)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Preparation and Thermoelectric Properties of Misfit-Layered Sulfides [Ln_2S_2]_pNbS_22004

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Proceedings of the 23^<rd> International Conference on Thermoelectrics (ITC 2004) (CD-ROM#081)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Spin state transition in Ca-doped Na_<0.7>CoO_2 : muon spin rotation and relaxation in the layered cobaltite with the nominal Co valence below 3.162004

    • Author(s)
      J.Sugiyama
    • Journal Title

      Proceedings of the 23^<rd> International Conference on Thermoelectrics (ITC 2004) (CD-ROM#090)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Preparation and Thermoelectric Properties of Oxygen-deficient Misfit-Layered Cobaltite [Ca_2CoO_<3-δ>]_pCoO_22004

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Proceedings of the 23^<rd> International Conference on Thermoelectrics (ITC 2004) (CD-ROM#129)

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Thermoelectric property of ladder-type oxide [(Sr_<1-x>Ca_x)_2CuO_3]_γ[Cu_<1-y>Co_yO_2]2004

    • Author(s)
      S.Tayama
    • Journal Title

      Trans. MRS-J 29

      Pages: 2767-2772

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Transport properties of undoped and Sb-doped half-Heusler compounds NbCoSn2004

    • Author(s)
      Y.Ono
    • Journal Title

      Trans. MRS-J 29

      Pages: 2785-2788

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Thermoelectric properties of Ca-doped γ-Na_xCoO_22004

    • Author(s)
      Y.Ono
    • Journal Title

      Trans. MRS-J 29

      Pages: 2821-2824

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Transport Properties of Ca-doped γ-Na_xCoO_22004

    • Author(s)
      Y.Ono
    • Journal Title

      J.Ceram.Soc.Jpn.Suppl. 112

      Pages: S626-S628

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Valence-band photoemission study of β-ZrNCl and the quasi-two-dimensional superconductor Na_xZrNCl2004

    • Author(s)
      T.Yokoya
    • Journal Title

      Phys.Rev.B 70

      Pages: 193103

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Modulated Structure of Misfit Layered Cobalt Oxide [(Ca_<0.90>Bi_<0.10>)_2(Co_<0.95>Bi_<0.05>)O_3]_pCoO_22004

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Jpn.J.Appl.Phys. 43

      Pages: 6252-6258

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Thermoelectric property of ladder-type oxide [(Sr_<1-x>Ca_x)_2CuO_3]_γ[Cu_<1-y>Co_yO_2]2004

    • Author(s)
      S.Tayama
    • Journal Title

      Trans.MRS-J 29

      Pages: 2767-2772

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Transport properties of undoped and Sb-doped half-Heusler compounds NbCoSn2004

    • Author(s)
      Y.Ono
    • Journal Title

      Trans.MRS-J 29

      Pages: 2785-2788

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Thermoelectric properties of Ca-doped γ-Na_xCoO_22004

    • Author(s)
      Y.Ono
    • Journal Title

      Trans.MRS-J 29

      Pages: 2821-2824

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] γ-Na_xCoO_2(x=0.67-0.75)の結晶構造と輸送特性2003

    • Author(s)
      小野泰弘
    • Journal Title

      粉体および粉末冶金 50

      Pages: 469-473

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] 複合結晶[(Ca_<1-x>Sr_x)_2CoO_3]_pCoO_2の結晶構造と熱電特性2003

    • Author(s)
      宮崎 譲
    • Journal Title

      粉体および粉末冶金 50

      Pages: 475-479

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Phonon DOS of filled Skutterudite, Ba_<0.1>CoSb_32003

    • Author(s)
      T.Kajitani
    • Journal Title

      Proceedings of the 22^<nd> International Conference on Thermoelectrics (ITC 2003)

      Pages: 81-84

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Effect of 3d-Transition Metal Substitution on the Thermoelectric Properties of the Misfit-Layered Cobalt Oxide [Ca_2CoO_3]_pCoO_22003

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Proceedings of the 22^<nd> International Conference on Thermoelectrics (ITC 2003),

      Pages: 203-206

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Modulated Structure of Misfit-Layered Cobalt Oxide [Ca_2(Co_<0.65>Cu_<0.35>)_2O_4]_<0.63>CoO_22003

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Jpn.J.Appl.Phys. 42

      Pages: 7467-7473

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Crystal Structure and Electrical Transport of γ-Na_xCoO_2 (x=0.67-0.75)2003

    • Author(s)
      Y.Ono
    • Journal Title

      J.Jpn.Soc.Powder and Powder Metall. 50

      Pages: 469-473

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Crystal Structure and Electrical Transport of Misfit-Layered [(Ca_<1-x>Sr_x)_2CoO_3]_pCoO_22003

    • Author(s)
      Y.Miyazaki
    • Journal Title

      J.Jpn.Soc.Powder and Powder Metall. 50

      Pages: 475-479

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Preparation and low-temperature thermoelectric properties of the composite crystal[Ca_2(Co_<0.65>Cu_<0.35>)_2O_4]_<0.624>CoO_22002

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Jpn. J. Appl. Phys., 41

      Pages: L849-L851

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Development of New-type Cobalt Oxide Thermoelectric Materials2002

    • Author(s)
      T.Kajitani
    • Journal Title

      Proceedings of the 21st International Conference on Thermoelectrics (ITC 2002)

      Pages: 195-198

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Crystal structure and thermoelectric properties of the composite crystal [(Ca_<1-x>Sr_x)_2CoO_3]_pCoO_22002

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Proceedings of the 21st International Conference on Thermoelectrics (ITC 2002)

      Pages: 226-229

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Fabrication and Performance of an Oxide Thermoelectric Power Generator2002

    • Author(s)
      Y.Ono
    • Journal Title

      Proceedings of the 21st International Conference on Thermoelectrics (ITC 2002)

      Pages: 454-457

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Modulated Structure of the Thermoelectric Compound [Ca_2CoO_3]_<0.62>CoO_2]2002

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Jpn. J. Appl. Phys., 71

      Pages: 491-497

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Crystal Structure, Electric and Magnetic Properties of Layered Cobaltite β-Na_xCoO_22002

    • Author(s)
      Y.Ono
    • Journal Title

      J.Solid State Chem 166

      Pages: 177-181

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Low-Temperature Synthesis and Electric Properties of New Layered Cobaltite, Sr_xCoO_22002

    • Author(s)
      R.Ishikawa
    • Journal Title

      Jpn.J.Appl.Phys. 41

      Pages: L337-L339

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Synthesis and characterization of Ag_<5-x>Pb_2O_<6-δ>2002

    • Author(s)
      K.Iwasaki
    • Journal Title

      Physica C 382

      Pages: 263-268

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Jahn-Teller distortion and cluster-glass like behavior in La_<0.875>Ca_<0.125>MnO_32002

    • Author(s)
      S.Begum
    • Journal Title

      J.Phys.Chem.Solids 63

      Pages: 939-942

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Low-energy excitation in La_<1-x>Ca_xMnO_3 single crystals with 0.05<x<0.202002

    • Author(s)
      S.Begum
    • Journal Title

      Appl.Phys. A74

      Pages: S625-S627

    • Description
      「研究成果報告書概要(和文)」より
  • [Journal Article] Preparation and low-temperature thermoelectric properties of the composite crystal [Ca_2(Co_<0.65>Cu_<0.35>)_2O_4]_<0.624>CoO_22002

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Jpn.J.Appl.Phys. 41

      Pages: L849-L851

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Modulated Structure of the Thermoelectric Compound [Ca_2CoO_3]_<0.62>CoO_2]2002

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Jpn.J.Appl.Phys. 71

      Pages: 491-497

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Crystal Structure, Electric and Magnetic Properties of Layered Cobaltite β-Na_xCoO_22002

    • Author(s)
      Y.Ono
    • Journal Title

      J.Solid State Chem. 166

      Pages: 177-181

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Jahn-Teller distortion and cluster-glass like behavior in La_<0.875>Ca_<0.125>MnO_32002

    • Author(s)
      S.Begum
    • Journal Title

      J.Phy.Chem.Solids 63

      Pages: 939-942

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Low-energy ex citation in La_<1-x>Ca_xMnO_3 single crystals with 0.05<x<0.202002

    • Author(s)
      S.Begum
    • Journal Title

      Appl.Phys.A 74[Suppl.]

      Pages: S625-S627

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Effect of 3d-Transition Metal Substitution on the Cobalt Oxide the Thermoelectric Properties of the Misfit-Layered [Ca_2CoO_3]_pCoO_2

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Proceedings of the 22^<nd> International Conference on Thermoelectrics (ITC 2003)

      Pages: 203-206

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Electrical Transport Properties of NbCoSn-based Half-Heusler Alloys

    • Author(s)
      Y.Ono
    • Journal Title

      Proceedings of the 23^<rd> International Conference on Thermoelectrics (ITC 2004) (CD-ROM#014)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Preparation and Thermoelectric Properties of Misfit-Layered Sulfides [Ln_2S_2]_pNbS_2

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Proceedings of the 23^<rd> International Conference on Thermoelectrics (ITC 2004) (CD-ROM#081)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Spin state transition in Ca-doped Na_<0.7>CoO_2 : muon spin rotation and relaxation in the layered cobaltite with the nominal Co valence below 3.16

    • Author(s)
      J.Sugiyama
    • Journal Title

      Proceedings of the 23^<rd> International Conference on Thermoelectrics (ITC 2004) (CD-ROM#090)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Journal Article] Preparation and Thermoelectric Properties of Oxygen-deficient Misfit-Layered Cobaltite [Ca_2CoO_<3-δ>]_pCoO_2

    • Author(s)
      Y.Miyazaki
    • Journal Title

      Proceedings of the 23^<rd> International Conference on Thermoelectrics (ITC 2004) (CD-ROM#129)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] Oxide Thermoelectrics, "Thermoelectrics Handbook Macro to Nano"(Editor in chief D.M.Rowe)2006

    • Author(s)
      K.Koumoto
    • Total Pages
      4
    • Publisher
      CRC press,Taylor and Francis
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] 熱電材料 "ナノマテリアル工学大系 第2巻 ナノ金属"(監修 : 井上明久)2006

    • Author(s)
      梶谷 剛
    • Total Pages
      15
    • Publisher
      フジ・テクトシステム
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Oxide Thermoelectrics "Thermoelectrics Handbook Macro to Nano" (Editor in chief D.M.Rowe)2006

    • Author(s)
      K.Koumoto
    • Total Pages
      4
    • Publisher
      CRC press
    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] Thermoelectrics "Nano-Materials Engineering Vol.2 Nano-Metals" (Chief Editor A.Inoue)2006

    • Author(s)
      T.Kajitani
    • Total Pages
      15
    • Publisher
      Fuji techno system
    • Description
      「研究成果報告書概要(欧文)」より
  • [Book] Crystal structure of layered cobaltites Na_xCoO_2 "Oxide Thermoelectrics"2002 : 1USBN : 81-7736-100-7(Editors : K.Koumoto, I.Terasaki and N.Murayama)2002

    • Author(s)
      Y.Ono
    • Total Pages
      13
    • Publisher
      Research Signpost
    • Description
      「研究成果報告書概要(和文)」より
  • [Book] Crystal structure of layered cobaltites Na_xCoO_2 "Oxide Thermoelectrics", 2002 : 1USBN : 81-7736-100-7 (Editors : K.Koumoto, I.Terasaki and N.Murayama)2002

    • Author(s)
      Y.Ono
    • Total Pages
      13
    • Publisher
      Research Signpost
    • Description
      「研究成果報告書概要(欧文)」より
  • [Patent(Industrial Property Rights)] デラフォッサイト構造を持つ層状酸化物熱電材料2005

    • Inventor(s)
      小野泰弘
    • Industrial Property Rights Holder
      独立行政法人科学技術振興機構
    • Industrial Property Number
      特許
    • Filing Date
      2005-11-28
    • Description
      「研究成果報告書概要(和文)」より
  • [Patent(Industrial Property Rights)] コバルト系層状複合酸化物および熱電変換素子2003

    • Inventor(s)
      本橋輝樹
    • Industrial Property Rights Holder
      財団法人理工学振興会(東工大)
    • Industrial Property Number
      特許
    • Filing Date
      2003-08-28
    • Description
      「研究成果報告書概要(和文)」より
  • [Patent(Industrial Property Rights)] 酸化物熱電材料2002

    • Inventor(s)
      梶谷剛
    • Industrial Property Rights Holder
      東北大学長
    • Industrial Property Number
      特許
    • Filing Date
      2002-05-21
    • Description
      「研究成果報告書概要(和文)」より

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Published: 2007-12-13  

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