Induced magnetism studied by magnetic spectroscopy under external field

2014 Fiscal Year Final Research Report

• Project/Area Number: 24686007
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Thin film/Surface and interfacial physical properties
• Research Institution: The University of Tokyo
• Principal Investigator: OKABAYASHI Jun 東京大学, 理学(系)研究科(研究院), 准教授 (70361508)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 電子分光 / 磁気分光 / スピントロニクス / 界面

Outline of Final Research Achievements

We have investigated the controllability of the exchange interaction by external fields in magnetic impurities and magnetic interfaces. We developed the new instruments for magnetic spectroscopy measuring the spin and orbital magnetic moments. We discussed two topics: (i) the doner-exchange interaction through the oxygen vacancies in magnetic oxide semiconductors and (ii) the mechanism of perpendicular magnetic anisotropy at the interface between ferromagnetic alloys and MgO. We found that the Fe-O chemical bonding becomes an essential role, which brings the control of anisotropy by the external fields.

Free Research Field

電子分光