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Very precise detection of spin fluctuation by polarized neutrons

Research Project

Project/Area Number 05402011
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field 固体物性Ⅱ(磁性・金属・低温)
Research InstitutionTOHOKU UNIVERSITY

Principal Investigator

ENDOH Yasuo  Tohoku University, Graduate School of Science, Department of Physics, Professor, 理学研究科, 教授 (00013483)

Co-Investigator(Kenkyū-buntansha) ITOH Shinnichi  National Laboratory for High Energy Physics BSF,Research Scientist, 助手 (00221771)
TAKEDA Masayasu  Tohoku University, Graduate School of Science, Department of Physics, Research S, 理学研究科, 助手 (70222099)
HIROTA Kazuma  Tohoku University, Graduate School of Science, Department of Physics, Research S, 理学研究科, 助手 (90272012)
YAMADA Kazuyoshi  Tohoku University, Graduate School of Science, Department of Physics, Associate, 理学研究科, 助教授 (70133923)
中島 健次  東北大学, 大学院・理学研究科, 特別研究員
細谷 正一  山梨大学, 工学部, 助教授 (30124621)
Project Period (FY) 1993 – 1995
Project Status Completed (Fiscal Year 1995)
Budget Amount *help
¥30,500,000 (Direct Cost: ¥30,500,000)
Fiscal Year 1995: ¥5,800,000 (Direct Cost: ¥5,800,000)
Fiscal Year 1994: ¥5,500,000 (Direct Cost: ¥5,500,000)
Fiscal Year 1993: ¥19,200,000 (Direct Cost: ¥19,200,000)
Keywordspolarized neutrons / polarizing neutron guide / pulsed neutrons / polarizer / supermirror / Heusler / 磁気鏡中性子導管偏極子(PNG) / 中性子分光装置 / 磁気励起 / 磁束格子 / 高温超伝導 / YBCO / Cr / スピンフリッパー / 高エ研中性子散乱施設 / JRR3M原子炉 / 偏極度解析
Research Abstract

A neutron polarizer has been designed for the TOP spectrometer at Booster Synchrotron Utilization Facility at National institute of High Energy Physics by a new concept of polarizing neutron guide (PNG). The PNG consists of straight Ni guide tubes and Fe/Si supermirror polarizers which make V-shape in the neutron guide. Its performance has been studied on the TOP spectrometer. It is revealed that PNG works very well with pulsed cold neutrons and that it provides twice as much as polarized neutron with better polarization compared with the previous polarizer of Co/Ti Soller polarizing guide.
Preparation of polarization analysis option on TOPAN spectrometer at 6G in JRR-3M at the Tokai establishment of JAERI has been completed and now ready for use. However, we still continue to try to get polarized neutrons with better polarization by heat treatment of Heusler crystals of polarizing monochorometer and analyzer.

Report

(4 results)
  • 1995 Annual Research Report   Final Research Report Summary
  • 1994 Annual Research Report
  • 1993 Annual Research Report
  • Research Products

    (35 results)

All Other

All Publications (35 results)

  • [Publications] Y.Endoh 他: "Magnetic Excitation in Spin Density Wave State of Cr" J.Phys.Soc.Jpn.63. 3572-3276 (1994)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.Takeda 他: "Interfacial Roughness and the giant magnetoresistance effect" Physica B. 213&214. 248-250 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Endoh 他: "Neutron Study on the Subject of Giant Magnetoresistance system" Material Science & Engineering. B31. 57-63 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] K.Yamada 他: "Antiferromagnetic order of the S=1/2 Linear Chain Cuprate" Physica C. 253. 135-138 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] K.Yamada 他: "Direct Observation of a Magnetic Gap in Superconducting LSCO" Phys.Rev.Lett.75. 1626-1629 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] K.Yamada 他: "An Overall Energy Spectrum of Magnetic fluctuation in Superconducting LSCO" J.Phys.Soc.Jpn.64. 2742-2745 (1995)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.Takada, Y.Endoh, H.Yasuda, K.Yamada, A.Kamijo and J.Mizuki: "First Evidence of Interfacial Magnetic Roughness in Fe/Cr Artificial Multilayr Studied by Neutron Difraction Measurement" Journal of Physical Society of Japan. 62. 3015-3018 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] T.Sato, T.Ando, T.Watanabe, S.Itoh, Y.Endoh and M.Furuyama: "Neutron-depolarization analysis and small-angle neutron-scattering studies of the reentrant spin glass Ni77Mn23" Physical Review. B48. 6074-6086 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] N.Hosoito, K.Mibu, T.Ono, T.Shinjo and Y.Endoh: "Magnetic structures of giant magnetoresistance systems, Fe/Cr and NiFe/Cu/Co/Cu, studied by neutron diffraction" J.magnetism & magnetic materials. 126. 255-2 (1993)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Endoh, T.Fukuda, K.Yamada and M.Takeda: "Magnetic Excitation in Spin Density Wave (SDW) State of Cr" Journal of Physical Society of Japan. 63, No.10. 3572-3576 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] H.Hiraka and Y.Endoh: "Ferromagnetic Transition of Heisenberg Ferromagnetic Metal of CoS2 ---Static Critical Properties---" Journal of Physical Society of Japan. 63, No.2. 4573-4582 (1994)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] S.Itoh, K.Kakurai, M.Takeda and K.Hirota: "Polarized Neutron Transmission Studies of LiNiO2" Physica. B213 & 214. 200-202 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] M.Yokoyama, T.Oku, T.Taniyama, T.Sato, E.Ohta, T.Sato, K.Haneda, S.Itoh, K.Kurahashi and M.Takeda: "Intraparticle Structure in Ultra-fine ZnFe204 Particles" Physica. B213 & 214. 251-253 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] T.Taniyama, T.Sato, E.Ohta and M.Takeda: "Intraparticle Structure of Pd fine Particle" Physica. B213 & 214. 254-256 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] T.Fukuda, M.Takeda, K.Yamada and Y.Endoh: "Commensurate and incommensurate magnetic excitations of Cr, an itinerant-electron antiferromagnet" Physica. B213 & 214. 342-344 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Endoh, M.Takeda, A.Kamijo, J.Mizuki, N.Hosoito and Tetsuya Shinjo: "Neutron Study on the Subject of Giant Magnetoresistance Effect" Materials Sciece & Engineering. B31. 57-63 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1995 Final Research Report Summary
  • [Publications] Y.Endoh 他: "Magnetic Exitation in Spin Density Wave(SDW)State of Cr" J.Phys.Soc.Jpn.63. 3572-3576 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Hiraka and Y.Endoh: "Ferromagnetic Transition of Heisenberg Ferromagnetic Metal of CoS_2 static Critical Properties" J.Phys.Soc.Jpn.63. 4573-4582 (1994)

    • Related Report
      1995 Annual Research Report
  • [Publications] Y.Endoh 他: "Neutron study on the subject of giant magnetoresistance effect" Materials Science & Engineering. B-31. 57-63 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] T.Fukuda,M.Takeda 他: "Commensurate and incommensurate magnetic excitations of Cr an itinerant-electron antiferromagnet" Physica B. 213 & 214. 342-344 (1995)

    • Related Report
      1995 Annual Research Report
  • [Publications] M.Takeda 他: "Polarizing Neutron Guide of a V-shape-mirror with Pulsed Cold Neutrons" 発表予定.

    • Related Report
      1995 Annual Research Report
  • [Publications] H.Hiraka,Y.Endoh: "Ferromapnetic Trausitien of Heisenbery Ferromagnetic Metal of Hos2 - Static Critical Properties" Journal Phys.Soc.Jpn. 63. 4573-4582 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] H.Kita,A.Donni,Y,Endoh: "Sinple Cuystal Neutun Diffractin of the Magnetic phase diagram of the fermion Superconductor UP d2 Al3" Journal Phys.Soc.Jpn. 63. 726-735 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] M.Matsuda,K.Yamada,Y.Endoh: "Spin fluctuation in Superconducting La_<1.85>Sr_<0.15>CuO_4" Phys.Reu.B. 49. 6958-6966 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] S.Itoh,K.Yanada,Y.Endoh: "Spin Dynamics on 2-dimensional heisenberg Antiferromagnets - High energy neutron inelastic - scatter from La_2CuO_4 and La_2NiO_4" Journal Phys.Soc.Jpn. 63. 4542-4549 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Y.Endoh,T.Fukuda.K.Yamada: "Magnetic excitations in SDW state of Cr" Journal Phys.Soc.Jpn. 63. 3572-3576 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] K.Yamada,T.Omata.Y.Endoh: "Incommensurete magnetic correlations in La_2NiO_<4.125>" Physica C. 221. 355-362 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] 遠藤康夫(第4章): "新素材を拓く-金属人工格子(アグネ技術センター)" 蒔森啓安/新庄輝也/山本良一/前川禎正/松井正嗣編, 435 (1995)

    • Related Report
      1994 Annual Research Report
  • [Publications] Yasuo Endoh(5.6章): "Magnetic Propertics of Non Metalliclr Organie Conparido" Landurt-Bornstein,Nebi New Series 57巻, 320 (1994)

    • Related Report
      1994 Annual Research Report
  • [Publications] Y.Endoh: "Recent Development in Magnetic Neutron scattering Studies" Proceedings of the Fifth International Symposium on Nuclear Energy Research. 36-43 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] T.Watanabe,K.Yamada H.Kojima Y.Endoh,N.Toyota,S.Itoh,I.Tanaka: "Neutron depolarization Studies on Magnetic Flux in Superconductors" ibid.307-307 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] S.Itoh,K.Kakurai,M.Arai Y.Endoh: "Spin dynamics along the chain direction in an S=3/2,Quasi-one-dimensional Heisenberg antiferromagnet CsVCl_3" J.Phys:Condens.Matter.5. 6767-6772 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] K.Nakajima,K.Yamada S.Hosoya,Y.Endoh,T.Omata: "Spin-Wave Excitations in Two Dimensional Antiferromagnet of Stoichiometric La_2Ni04" J.Phys.Soc.Jpn.62. 4438-4448 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] M.Kohgi,Y.Endoh: "Neutron Magnetic scattering Studies on Rare Earth Compounds with Highly Correlated Electrons" JJAP. series8. 244-253 (1993)

    • Related Report
      1993 Annual Research Report
  • [Publications] M.Takeda Y.Endoh,H.Yasuda K.Yamada A.Kamijo,J.Mizuki: "First Evidence of Interfacial Roughness in Fe/Cr Artificial Muitilayers Studied by Neutron Diffraction Measurment" J.Phys.Soc.Jpn.62. 3015-3018 (1993)

    • Related Report
      1993 Annual Research Report

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Published: 1993-04-01   Modified: 2020-05-15  

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