Magnetic Structural Analysis of Magnetic Thin Films Artificially Modulated on a Monatomic Layer scale by Polarized Neutron Scattering Technique
| Project/Area Number |
17310078
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Nanomaterials/Nanobioscience
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| Research Institution | Japan Atomic Energy Agency |
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Principal Investigator |
TAKEDA Masayasu Japan Atomic Energy Agency, Japan Atomic Energy Agency, Quantum Beam Science Directorate, Section Sub-Leader (70222099)
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| Co-Investigator(Kenkyū-buntansha) |
ASAOKA Hidehito Japan Atomic Energy Agency, Quantum Beam Science Directorate, Principal Researcher (40370340)
KAKURAI Kazuhisa Japan Atomic Energy Agency, Quantum Beam Science Directorate, Senior Principal Researcher (00204339)
TSUNODA Masakiyo Tohoku University, Graduate School of Engineering, Associate Professor (80250702)
TAKANASHI Koki Tohoku University, Institute for Material Research, Professor (00187981)
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| Project Period (FY) |
2005 – 2007
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| Project Status |
Completed (Fiscal Year 2007)
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| Budget Amount *help |
¥13,550,000 (Direct Cost: ¥13,100,000、Indirect Cost: ¥450,000)
Fiscal Year 2007: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2006: ¥1,600,000 (Direct Cost: ¥1,600,000)
Fiscal Year 2005: ¥10,000,000 (Direct Cost: ¥10,000,000)
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| Keywords | magnetism / nanomaterial / experimental physics / spintronics / radiation, X-ray, and the other beams / polarized neutron / magnetic structural analysis / monatomic layer / ナノ構造 / エピタキシャル / MBE / 結晶成長 / スピントロニクス / 放射線・X線・粒子 / 磁気構造精密解析 |
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| Research Abstract |
1. Polarized neutron options for a triple-axis neutron spectrometer, TAS-1, and a neutron reflectometer, SUIREN, have been improved. The spectrometer and reflectometer are installed at research reactor JRR-3 of Japan Atomic Energy Agency (JAEA) and are now capable of the detailed magnetic structural analysis of the thin magnetic films whose scattering volumes are very tiny.
2. Spherical polarization analysis of an artificially confined spin-density wave in Cr/Sn multilayer has been successfully given using combination of TAS-1 and CRYOPAD (CRYOgenic Polarization Analysis Device). CRYOPAD can measure the three components of the polarization of scattered neutrons, and consequently can determine complicated spin structures in antiferromagnetic specimen.
3. Magnetic films synthesized by the investigators and the other collaborators have been investigated using TAS-1 and SUIREN. For example it has been revealed that no giant magnetic moment exists in α"-Fe_<16>N_2 thin films with an optimum nitrization using TAS-1. The giant magnetic moment in α"-Fe_<16>N_2 had been a long term issue.
4. Deposition of Ruthenium (Ru) has been succeeded using the Knudsen Cell with the rate of 0.001nm/sec. at 1985 C. Ru is a key material for improvement of the performance of magnetic recoding read-head. The deposition using K cell had never been tried because of the high melting point of Ru although high-quality epitaxial growth was generally expected using the K cell. We are now going to the next step to synthesize high-quality epitaxial films using the K cell and the van der Waals epitaxy method.
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Report
(4 results)
Research Products
(51 results)
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[Journal Article] Recent Research Activities on a Polarized Neutron Reflectometer (PORE)2006
Author(s)
N. Torikai, M. Takeda, H. Asaoka, T. Hirano, H. Hayahida, M. Hino, M. Kitaguchi, M. Mizusawa, K. Sakurai, R. Cubitt, K. Ikeda, K. Hirata, H. M. Shimizu, M. Yoneyama, M. Yoshioka, K. Sakamoto, R. Kanno
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Journal Title
KEK Progress Report 4
Pages: 230-232
Description
「研究成果報告書概要(和文)」より
Related Report
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[Journal Article] Recent Research Activities on a Polarized Neutron Reflectometer (PORE)2006
Author(s)
N. Torikai, M. Takeda, H. Asaoka, T. Hirano, H. Hayahida, M. Hino, M. Kitaguchi, M. Mizusawa, K Sakurai, R. Cubitt, K. Ikeda, K. Hirata, H. M. Shimizu, M. Yoneyama, M. Yoshioka, K. Sakamoto, R Kanno
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Journal Title
KEK Progress Report 2006-003
Pages: 77-80
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Journal Article] Advances in spherical neutron polarimetry with Cryopad2005
Author(s)
Lelievre-Bema E., Bourgeat-Lami E., Fouilloux P., Geiffray B., Gibert Y., Kakurai K., Kemavanois N., Longuet B., Mantegezza F., Nakamura M., Pujol S., Regnault L-P., Tasset F., Takeda M., Thomas M., Tonon X.
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Journal Title
Physica B 356
Pages: 131-135
Description
「研究成果報告書概要(和文)」より
Related Report
Peer Reviewed
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[Journal Article] Advances in spherical neutron polarimetry with Cryopad2005
Author(s)
Lelievre-Berna E., Bourgeat-Lami E., Fouilloux P., Geffray B., Gibert Y., Kakurai K., Kernavanois N., Longuet B., Mantegezza F., Nakamura M., Pujol S., Regnault L.-P., Tasset F., Takeda M., Thomas M., Tonon X.
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Journal Title
Physica B 356
Pages: 131-135
Description
「研究成果報告書概要(欧文)」より
Related Report
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[Presentation] 中性子反射率計(界面の情報を探る)2007
Author(s)
武田全康
Organizer
第44回 X線材料強度に関する討論会
Place of Presentation
大阪 島津製作所関西支社
Year and Date
2007-11-30
Description
「研究成果報告書概要(和文)」より
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[Presentation] CRYOIPADを用いた3次元中性偏極解析実験2007
Author(s)
加倉井和久, 武田全康, 中村充孝, 大沢明, 松田雅昌, 脇本秀一, 下条豊, E. Lelievre-Berna, F. Tasset
Organizer
日本中性子科学会第7回年会
Place of Presentation
福岡 九州大学
Year and Date
2007-11-27
Description
「研究成果報告書概要(和文)」より
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[Presentation] JRR-3新中性子反射率計SUIREN2006
Author(s)
山崎大, 曽山和彦, 武田全康, 丸山龍治, 海老沢徹, 盛合敦, 田村格良, 中村清
Organizer
日本中性子科学会第6回年会
Place of Presentation
水戸 県民文化センター
Year and Date
2006-12-05
Description
「研究成果報告書概要(和文)」より
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[Book] X線反射率法入門 ワンベージコラム 中性子の相補利用2009
Author(s)
淡路直樹, 上田和浩, 奥田浩司, 表和彦, 川村朋晃, 桜井健次, 武田全康, 竹中久貴, 谷克彦, 林好一, 藤本俊幸, 矢代航, 矢野陽子
Total Pages
318
Publisher
講談社
Description
「研究成果報告書概要(和文)」より
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[Book] X線反射率法入門, 第5章X線反射率法の拡張(1)中性子の利用2007
Author(s)
淡路直樹, 飯村兼一, 石井真史, 上田和浩, 奥田浩司, 表和彦, 川村朋晃, 木村正雄, 桜井健次, 高橋正光, 武田全康, 竹田美和, 田淵雅夫, 谷克彦, 林好一, 矢代航, 矢野陽子, 吉田郵司
Total Pages
188
Publisher
(社)応用物理学会 埋もれた界面のX線・中性子解析グループ編
Description
「研究成果報告書概要(和文)」より
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