Mechanical stress induced change in ferromagnetic Curie temperature in metal thin film magnets

Research Project

Project/Area Number	25600075
Research Category	Grant-in-Aid for Challenging Exploratory Research
Allocation Type	Single-year Grants
Research Field	Applied materials
Research Institution	The University of Tokyo
Principal Investigator	CHIBA Daichi 東京大学, 工学(系)研究科(研究院), 准教授 (10505241)
Co-Investigator(Kenkyū-buntansha)	NAMAZU Takahiro 兵庫県立大学, 大学院・工学研究科, 准教授 (90347526)
Project Period (FY)	2013-04-01 – 2014-03-31
Project Status	Completed (Fiscal Year 2013)
Budget Amount *help	¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000) Fiscal Year 2013: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Keywords	スピントロニクス / 強磁性金属 / キュリー温度 / 歪み応答
Research Abstract	It is very difficult to control properties of magnets once they have been prepared. If their properties can be controlled afterward, the variety of an application possibility will be increased. It is well known that the magnetization direction can be controlled by an application of mechanical stress. But experimental reports on the stress dependence of magnetic force or Curie temperature are not many. In this research, we prepared thin film magnets using accessible metal elements, and investigated the change in Curie temperature under the application of the mechanical stress.