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2007 Fiscal Year Annual Research Report

4次元空間中性子探査装置の開発と酸化物高温超伝導機構の解明

Research Project

Project/Area Number 17001001
Research InstitutionJapan Atomic Energy Agency

Principal Investigator

新井 正敏  Japan Atomic Energy Agency, J-PARKセンター, 研究主席 (30175955)

Co-Investigator(Kenkyū-buntansha) 横尾 哲也  高エネルギー加速器研究機構, 物質構造科学研究所, 助教 (10391707)
梶本 亮一  独立行政法人日本原子力研究開発機構, J-PARKセンター, 研究員 (30391254)
中島 健次  独立行政法人日本原子力研究開発機構, J-PARKセンター, 研究副主幹 (10272535)
社本 真一  独立行政法人日本原子力研究開発機構, 量子ビーム応用研究部門, 研究主幹 (90235698)
山田 和芳  東北大学, 原子分子材料科学高等研究機構, 教授 (70133923)
Keywords酸化物高温超電導体 / 中性子散乱 / 4次元空間中性子探査装置 / 4次元空間中性子探査装置 / J-PARC / チョッパー分光器 / 純良単結晶育成
Research Abstract

1.4次元空間中性子探査装置(4SEASONS、「四季」)の建設
平成18年度までの詳細検討により確定した基本仕様を元に、中性子ビーム輸送系、遮蔽体等の機器の実機製作が進捗し、分光器本体、遮蔽体の大部分等、一部の機器はビームポートへの据付が完了している。さらに、4SEASONSの目指すサイエンス、最終スペック、製作状況を国内外の研究会において発表することで、装置開発研究の専門家から広く意見を招請することができた。
2.試料作成環境の構築と試料作成
原子力機構においてはYBCO系高温超伝導体に加えて新たにHg系高温超伝導体単結晶育成環境の準備も始めた。東北大学ではLa214系、電子ドープ系に加えてBi2201系高温超伝導体単結晶などの単結晶作製が進んだ。すでにこれらの試料の一部は実験研究に供されており、多数の研究成果に寄与している。
3.酸化物高温超伝導の実験研究
国内外の中性子源施設において中性子散乱による酸化物高温超伝導体の実験研究を行い、電子ドープ型超伝導体における高エネルギー領域の磁気揺らぎの重要性を示すとともに、La214系アンダードープ試料での砂時計型磁気励起、Bi2201系での格子非整合な磁気ピークの存在などについて理解を深めることができた。さらに、YBCO系におけるフォノンのソフトニングと超伝導転移温度の相関についても重要な知見が得られた。
4.研究会
酸化物高温超伝導研究の研究概説、及びJ-PARCでの大強度パルス中性子源を念頭においた量子ビームによる研究計画について議論するため、2007年12月14-15日に第2回科研費特別推進研究・研究会「量子ビームによる高温超伝導機構の解明」を開催した。

  • Research Products

    (63 results)

All 2009 2008 2007 Other

All Journal Article (31 results) (of which Peer Reviewed: 28 results) Presentation (30 results) Book (2 results)

  • [Journal Article] Development of high reflectivity neutron supermirror with ion beam sputtering technique2009

    • Author(s)
      R.Maruyama, D.Yamazaki, T.Ebisawa, and K.Soyama
    • Journal Title

      Nucl.Instrm.Methods Phys.Res.A 600

      Pages: 68-70

    • Peer Reviewed
  • [Journal Article] 中性子源及び建設中・計画中の装置の概要2008

    • Author(s)
      新井正敏
    • Journal Title

      結晶学会誌 50

      Pages: 7-12

  • [Journal Article] J-PARC実現への道と更なる将来に向かって2008

    • Author(s)
      新井正敏
    • Journal Title

      中性子学会誌 18

      Pages: 44-47

  • [Journal Article] Defect structure of Ta- and Al- doped Zn_2TiO_4 showing oxide ion conduction via cation vacancy2008

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

      J.Ceramic Society of Japan 116

      Pages: 525-529

    • Peer Reviewed
  • [Journal Article] Magnetovolume effect in Mn_3Cu_<1-x>Ge_xN related to the magnetic structure : Neutron powder diffraction measurements2008

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

      Phys.Rev.B 77

      Pages: 020409R

    • Peer Reviewed
  • [Journal Article] Real-time stress analysis of Ge nanodot growth on H-terminated Si(111)-1x1 and Si(111)-7x7 surfaces2008

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

      Curr.Appl.Phys. 8

      Pages: 246-248

    • Peer Reviewed
  • [Journal Article] Double focusing Heusler monochromator and analyzer systems for the polarized neutron triple-axis spectrometer2008

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

      Nuclear Instrument and Methods in Physics Research Section A 586

      Pages: 229-238

    • Peer Reviewed
  • [Journal Article] Instrumental design and expected performance of coupled-moderator near-backscattering spectrometer at J-PARC2007

    • Author(s)
      N.Takahashi, et al.
    • Journal Title

      J.Phys.Chem.Solids et al. 68

      Pages: 2199-2203

    • Peer Reviewed
  • [Journal Article] A single-crystal time-of-flight neutron diffractometer at a spallation neutron source2007

    • Author(s)
      Miwako Takahashi et al.
    • Journal Title

      Journal of Applied Crystallography 40

      Pages: 799-807

    • Peer Reviewed
  • [Journal Article] Repetition rate multiplication capability for a high energy resolution mode of DIANA at J-PRAC2007

    • Author(s)
      N.Takahashi, et al.
    • Journal Title

      Journal of Neutron Research 15

      Pages: 61-67

    • Peer Reviewed
  • [Journal Article] Utilization of multiple incident energies on Cold-Neutron Disk-Chopper Spectrometer at J-PARC2007

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

      Journal of Neutron Research 15

      Pages: 31-37

    • Peer Reviewed
  • [Journal Article] Cold-neutron disk-chopper spectrometer at J-PARC2007

    • Author(s)
      K.Nakajima, et al.
    • Journal Title

      Journal of Neutron Research 15

      Pages: 13-21

    • Peer Reviewed
  • [Journal Article] High intensity chopper spectrometer 4SEASONS at J-PARC2007

    • Author(s)
      R.Kaiimoto, et al.
    • Journal Title

      Journal of Neutron Research 15

      Pages: 5-12

    • Peer Reviewed
  • [Journal Article] Disappearance of Antiferromagnetic Spin Excitations in Over doped La_<2-x>Sr_xCuO_42007

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

      Phys.Rev.Lett. 98

      Pages: 247003(1)-247003(4)

    • Peer Reviewed
  • [Journal Article] Fincher-Burke Spin Excitaions and ω/T Scalling in Insulating La_<1.95>Sr_<0.05>CuO_42007

    • Author(s)
      Wei Bao, et al.
    • Journal Title

      Phys.Rev.B 76

      Pages: 180406(1)-180406(4)

    • Peer Reviewed
  • [Journal Article] Magnetic Excitations in Overdoped La_<2-x>Sr_xCuO_42007

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

      Physica C 460-462

      Pages: 166-169

    • Peer Reviewed
  • [Journal Article] Ni-Impurity Effects on Incommensurate Spin Correlations in the Superconducting Phase of La_<2-x>Sr_xCuO_4 near the Spin-Glass Phase Boundary.2007

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

      J.Phys.Soc.Jpn 76

      Pages: 074703(1)-074703(6)

    • Peer Reviewed
  • [Journal Article] Spin and charge orders and their hole-doping dependence in single layered cobaltate La_Ca_xCoO_4 (0.3≤x≤0.8)2007

    • Author(s)
      K.Horigane, et al.
    • Journal Title

      J.Phys.Soc.Jpn 76

      Pages: 114715(1)-114715(8)

    • Peer Reviewed
  • [Journal Article] High-energy magnetic excitations from dynamic stripes in La_<1.875>Ba_<0.125>CuO_42007

    • Author(s)
      Guangyong Xu, et al.
    • Journal Title

      Phys.Rev.B 76

      Pages: 014508(1)-014508(8)

    • Peer Reviewed
  • [Journal Article] Pulsed Neutron-Scattering Study of an Entire Spin Excitations in the Electron-Doped High-T_c Superconductor2007

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

      Physica C 460-462

      Pages: 2615-2619

    • Peer Reviewed
  • [Journal Article] Scanning Wide-Angle Neutron Diffraction and Its Application to Local Structures Investigations in Stainless Steel2007

    • Author(s)
      K.Ohoyama, et al.
    • Journal Title

      Jpn.J.Appl.Phys. 12

      Pages: 7925-7931

    • Peer Reviewed
  • [Journal Article] Local Crystal Structure of Multiferroic System BiMnO_3 by Atomic Pair Distribution Function (PDF) analysis2007

    • Author(s)
      K.Kodama, et al.
    • Journal Title

      J.Phys.Soc.Jpn. 76-12

      Pages: 124605-1-7

    • Peer Reviewed
  • [Journal Article] Single-domain Si(110)-16X2 surface fabricated by electromigration2007

    • Author(s)
      Yoichi Yamada, et al.
    • Journal Title

      Phys.Rev.B 76

      Pages: 153309

    • Peer Reviewed
  • [Journal Article] Ferroelectric polarization and magnetic structure in Eu_<0.595>Y_<0.405>MnO_32007

    • Author(s)
      R.Kajimoto, et al.
    • Journal Title

      Journal of Physics Chemistry and Solids 68

      Pages: 2087-2090

    • Peer Reviewed
  • [Journal Article] Ge/Si(111)-7x7ヘテロエピタキシャル成長におけるストレスその場測定2007

    • Author(s)
      朝岡秀人, et al.
    • Journal Title

      表面科学 28

      Pages: 500-503

    • Peer Reviewed
  • [Journal Article] Observation of initial oxidation process on Si(110)-16x2 by scanning tunneling microscopy2007

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

      Jpn.J.Appl.Phys. 46

      Pages: 3239-3243

    • Peer Reviewed
  • [Journal Article] Low-energy dynamics of superionic glass : Evidence for a direct relation with ionic conductivity2007

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

      Mater.Res.Soc.

      Pages: 169-176

    • Peer Reviewed
  • [Journal Article] One-dimensional and spherical polarization analysis of artificially confined spin-density-waves in Cr/Sn multilayers2007

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

      Physica B 397

      Pages: 56-58

    • Peer Reviewed
  • [Journal Article] Spiral spin structure in a Heisenberg pyrochlore magnet CdC r_2O_42007

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

      Physical Review B 75

      Pages: 104415

    • Peer Reviewed
  • [Journal Article] Curved Neutron Guide of the Cold Neutron Disk-Chopper Spectrometer at J-PARC

    • Author(s)
      R.Kajimoto, et al.
    • Journal Title

      Journal of Neutron Research (印刷中)(発表予定)

    • Peer Reviewed
  • [Journal Article] Supermirror coatings for the new spallation source J-PARC

    • Author(s)
      R.Maruyama, D.Yamazaki, T.Ebisawa, M.Hino, and K.Soyama
    • Journal Title

      Proceedings of ICANS XVIII (印刷中)

  • [Presentation] 散漫散乱測定による中性子多層膜ミラーの界面構造の観察2008

    • Author(s)
      丸山龍治、山崎大、海老澤徹、曽山和彦
    • Organizer
      日本原子力学会2008年春の年会
    • Place of Presentation
      大阪大
    • Year and Date
      20080327-28
  • [Presentation] 40T級パルス磁場下中性子回折による三角格子CuFeO_2での高磁場磁気構造観測2008

    • Author(s)
      大山研司, 他
    • Organizer
      日本物理学会第63回年次大会
    • Place of Presentation
      東大阪市
    • Year and Date
      20080323-26
  • [Presentation] J-PARCの中性子とミュオンの現状と組織2008

    • Author(s)
      新井正敏
    • Organizer
      日本物理学会第63回年次大会
    • Place of Presentation
      東大阪市
    • Year and Date
      20080322-26
  • [Presentation] Total scattering of Disordered Crystalline Functional Materials2008

    • Author(s)
      S.Shamoto
    • Organizer
      International Symposium on Pulsed Neutron and Muon Sciences
    • Place of Presentation
      Mito, Japan
    • Year and Date
      20080305-08
  • [Presentation] Inelastic Instrument Suite in MLF, J-PARC2008

    • Author(s)
      中島健次
    • Organizer
      The 1st International Symposium on Pulsed Neutron and Muon Sciences at J-PARC 2008
    • Place of Presentation
      水戸市
    • Year and Date
      20080305-08
  • [Presentation] Development of high reflectivity neutron supermirror with ion beam sputtering technique2008

    • Author(s)
      R.Maruyama, D.Yamazaki, T.Ebisawa, and K.Soyama
    • Organizer
      International symposium on pulsed neutron and muon sciences
    • Place of Presentation
      Mito, Japan
    • Year and Date
      20080305-08
  • [Presentation] Direct determination of surface stress during Ge growth on Si(111)2008

    • Author(s)
      H.Asaoka
    • Organizer
      the 34th Korean Vacuum Society meeting
    • Place of Presentation
      ソウル
    • Year and Date
      20080213-15
  • [Presentation] J-PARC and the prospective Neutron Sciences2008

    • Author(s)
      M.Arai
    • Organizer
      International Symposium on Neutron Scattering
    • Place of Presentation
      Mumbai
    • Year and Date
      20080115-18
  • [Presentation] Disordered Crystalline Functional Materials2008

    • Author(s)
      S.Shamoto
    • Organizer
      International Workshop on Structural Analyses Bridging over between Amorphous and Crystalline Materials
    • Place of Presentation
      RICOTTI, Tokai, Japan
    • Year and Date
      20080110-11
  • [Presentation] 中性子が拓く新しい材料科学2008

    • Author(s)
      社本真一
    • Organizer
      固体イオニクス研究会
    • Place of Presentation
      原子力機構、東海村
    • Year and Date
      2008-03-10
  • [Presentation] Study of the Neutron Guide Design of the 4SEASONS Spectrometer at J-PARC2008

    • Author(s)
      R.Kajimoto, et al.
    • Organizer
      International Symposium on Pulsed Neutron and Muon Sciences (IPS08)
    • Place of Presentation
      茨城県水戸市
    • Year and Date
      2008-03-07
  • [Presentation] 中性子を用いたナノ構造体の研究2008

    • Author(s)
      社本真一
    • Organizer
      日本学術振興会先進セラミックス第147委員会第2分科会研究会
    • Place of Presentation
      原子力機構、東海村
    • Year and Date
      2008-01-22
  • [Presentation] Present status and future direction of neutron scattering study on high-T_c Superconductor2007

    • Author(s)
      K.Yamada
    • Organizer
      2nd International Workshop on Materials Science and Nano-Engineering
    • Place of Presentation
      Awaji
    • Year and Date
      20071201-05
  • [Presentation] J-PARCの現状と共同利用体制2007

    • Author(s)
      新井正敏
    • Organizer
      日本結晶学会年会シンポジューム
    • Place of Presentation
      東京工業大学
    • Year and Date
      20071201-02
  • [Presentation] 中性子非弾性散乱によるTbB_4における4f状態の疑似縮退の観測2007

    • Author(s)
      大山研司, 他
    • Organizer
      日本中性子科学会第7回年会
    • Place of Presentation
      福岡市
    • Year and Date
      20071127-28
  • [Presentation] Doping and Temperature Evolutions of Spin Correlations in Electron-Doped Pr_<1-x>LaCe_xCuO_42007

    • Author(s)
      M.Fujita, et al.
    • Organizer
      the 20^<th> International Symposium on Superconductivity
    • Place of Presentation
      Tsukuba
    • Year and Date
      20071105-07
  • [Presentation] Structural Analysis of Nano-transition-metal-oxides2007

    • Author(s)
      S.Shamoto
    • Organizer
      Total scattering Pair Distribution Function analysis using X-rays and neutrons
    • Place of Presentation
      ESRF, Grenoble, France
    • Year and Date
      20071022-23
  • [Presentation] 中性子移層膜ミラーの散漫散乱測定2007

    • Author(s)
      丸山龍治、山崎大、海老澤徹、曽山和彦
    • Organizer
      日本原子力学会2007年秋の大会
    • Place of Presentation
      北九州国際会議場
    • Year and Date
      20070926-29
  • [Presentation] Cuサイト置換によるBi2201における磁気相関の探査2007

    • Author(s)
      平賀晴弘, 他
    • Organizer
      日本物埋学会第62回年次大会
    • Place of Presentation
      札幌市
    • Year and Date
      20070921-24
  • [Presentation] Neutron scattering study on dual nature of magnet excitations in high temperature superconductors2007

    • Author(s)
      K.Yamada
    • Organizer
      The Eighth International Conference on Spectroscopies in Novel Superconductors
    • Place of Presentation
      Sendai
    • Year and Date
      20070820-24
  • [Presentation] Ni impurity effect in high-T_c cuprates studied by Neutron Scattering and XAFS spectroscopy2007

    • Author(s)
      H.Hiraka, et al.
    • Organizer
      The Eighth International Conference on Spectroscopies in Novel Superconductors
    • Place of Presentation
      Sendai
    • Year and Date
      20070820-24
  • [Presentation] J-PARC and Prospective Science on Superionic Conductors by Neutron2007

    • Author(s)
      M.Arai
    • Organizer
      The Conference on Solid State Ionics
    • Place of Presentation
      Serpong, Inodonesia
    • Year and Date
      20070801-03
  • [Presentation] J-PARC and Prospective Neutron Science2007

    • Author(s)
      M.Arai
    • Organizer
      International Conference on Neutron and X-ray Scattering 2007/08/09
    • Place of Presentation
      Bandung, Indonesia
    • Year and Date
      20070723-31
  • [Presentation] Neutron-scattering study of impyurity effects on the stripe order in high-T_c cuprate2007

    • Author(s)
      M.Fujita, et al.
    • Organizer
      The International Conference on Strongly Correlated Electron Systems
    • Place of Presentation
      Houston, U.S.A.
    • Year and Date
      20070513-18
  • [Presentation] Session Chair, Summary session talk, Discussion session chair2007

    • Author(s)
      M.Arai
    • Organizer
      18^<th> International Collaboration on Advanced Neutron Sources (ICANS-18)
    • Place of Presentation
      Dongguan, China
    • Year and Date
      20070425-29
  • [Presentation] The Chopper Spectrometers at J-PARC2007

    • Author(s)
      中島健次
    • Organizer
      International Collaboration on Advanced Neutron Sources-XVIII
    • Place of Presentation
      中国・東莞
    • Year and Date
      20070425-29
  • [Presentation] Supermirror coatings for the new spallation source J-PARC2007

    • Author(s)
      R.Maruyama, D.Yamazaki, T.Ebisawa, M.Hino, and K.Soyama
    • Organizer
      The 18th meetings of the international collaboration on advanced neutron sources
    • Place of Presentation
      Dongguan, China
    • Year and Date
      20070425-29
  • [Presentation] 中性子が拓く新しい材料科学2007

    • Author(s)
      社本真一
    • Organizer
      日本学術振興会炭素材料第117委員会
    • Place of Presentation
      原子力機構、東海村
    • Year and Date
      2007-12-18
  • [Presentation] 中性子が拓く新しい材料科学2007

    • Author(s)
      社本真一
    • Organizer
      日本学術振興会光エレクロニクス第130委員会
    • Place of Presentation
      東京理科大森戸記念館、東京飯田橋
    • Year and Date
      2007-11-12
  • [Presentation] 中性子が拓く新しいセラミックス材料の科学2007

    • Author(s)
      社本真一
    • Organizer
      日本学術振興会セラミックス弟124委員会第126回会議
    • Place of Presentation
      原子力機構、東海村
    • Year and Date
      2007-10-13
  • [Book] 第2回科研費特別推進研究・研究会「量子ビームによる高温超伝導機構の解明」講演集2008

    • Author(s)
      社本真一、新井正敏
    • Total Pages
      195
    • Publisher
      原子力機構
  • [Book] 第1回三機関連携「量子複雑現象」研究会講演集2007

    • Author(s)
      社本真一、藤井保彦
    • Total Pages
      196
    • Publisher
      原子力機購

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Published: 2010-06-11   Modified: 2016-04-21  

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