Studies on practical functions of buried interfaces in magnetic layered structures using a novel experimental method sensitive to local magnetism of solids

2017 Fiscal Year Final Research Report

• Project/Area Number: 25287086
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Condensed matter physics II
• Research Institution: Nagoya Institute of Technology
• Principal Investigator: Mibu Ko 名古屋工業大学, 工学(系)研究科(研究院), 教授 (40222327)
• Co-Investigator(Kenkyū-buntansha): 三井 隆也 国立研究開発法人量子科学技術研究開発機構, 関西光科学研究所 放射光科学研究センター, 上席研究員(定常) (20354988)
• Co-Investigator(Renkei-kenkyūsha): TANAKA MASAAKI 名古屋工業大学, 大学院工学研究科, 助教 (50508405)
• Project Period (FY): 2013-04-01 – 2018-03-31
• Keywords: 磁性 / 薄膜 / 積層膜 / 界面 / メスバウアー分光 / 核共鳴散乱 / 放射光 / スピントロニクス

Outline of Final Research Achievements

Correlation between the local magnetism and the practical functions was studied for magnetic layered structures and their buried interfaces using emerging technique of nuclear resonant scattering (synchrotron-radiation-based Mossbauer spectroscopy) and conventional radioisotope-based Mossbauer spectroscopy.
High-quality ultrathin magnetic films and multilayers, with their interfaces occasionally enriched with Mossbauer-sensitive isotopes, were prepared using atomically controlled vacuum deposition, and the local magnetic properties, including those in static states and also in nonequilibrium steady states, were examined. Information on the correlation between the local magnetism and the practical functions, which would not be obtained by other experimental methods, were successfully obtained for several magnetic systems.

Free Research Field

磁気物性