2012 Fiscal Year Final Research Report

Development for novel ferromagnetic non-equilibrium materialsand search for magnetic interactions

Research Project

Project/Area Number	23654112
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Multi-year Fund
Research Field	Condensed matter physics II
Research Institution	Tohoku University
Principal Investigator	ENDOH Yasuo 東北大学, 金属材料研究所, 名誉教授 (00013483)
Co-Investigator(Kenkyū-buntansha)	HIRAKA Haruhiro 東北大学, 金属材料研究所, 助教 (90323097) ITOH Keiji 岡山大学, 大学院・教育学研究科, 准教授 (80324713)
Co-Investigator(Renkei-kenkyūsha)	OHOYAMA Kenji 東北大学, 金属材料研究所, 准教授 (60241569) SATO Toyoto 東北大学, 金属材料研究所, 助教 (20455851) ITOH Shinichi 高エネルギー加速器研究機構, 物質構造研究所, 教授 (00221771)
Project Period (FY)	2011 – 2012
Keywords	スピントロニクス / 強磁性半導体 / 中性子非弾性散乱 / 新奇強磁性 / 非平衡合成 / メカニカルミリング
Research Abstract	The major goal of this project is to measure directly the ferromagnetic interactions in the ferromagnetic materials for the spintronics devices. Bulk materials mandatory for this specific purpose have been developed to be grown in the nonequilibrium condition by the mechanical milling method. At the same time, new neutron scattering method to measure spin wave scattering from powder materials has been completed by combining pulsed neutrons and high resolution chopper instrument installed at J-PARC.