Electric field induced magnon interference

2015 Fiscal Year Final Research Report

• Project/Area Number: 26600078
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Applied materials
• Research Institution: Keio University
• Principal Investigator: ANDO KAZUYA 慶應義塾大学, 理工学部, 准教授 (30579610)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: スピントロニクス

Outline of Final Research Achievements

Magnons are responsible for the angular momentum transport in magnetic insulators. The angular momentum of magnons can be transferred to conduction electrons at metal/magnetic insulator interfaces, which is the foundation of insulator-based spintronics. In this study, we revealed disappearance of the angular momentum conversion between magnons and conduction electron spins by measuring spin-current emission from a magnetic insulator. We also found that magnon splitting also creates the magnon mode that is disconnected to the conduction electron spin currents at metal/magnetic insulator interfaces.

Free Research Field

総合理工