Exploration of novel spin-charge conversion due to spin waves

2014 Fiscal Year Final Research Report

• Project/Area Number: 25889003
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Electron device/Electronic equipment
• Research Institution: Tohoku University
• Principal Investigator: IGUCHI Ryo 東北大学, 金属材料研究所, 助教 (40707717)
• Co-Investigator(Renkei-kenkyūsha): SATO Koji 東北大学, 原子分子材料科学高等研究機構, 助教 (70708114)
• Project Period (FY): 2013-08-30 – 2015-03-31
• Keywords: スピントロニクス / スピン波 / スピン流

Outline of Final Research Achievements

In ferromagnetic metals, a spin wave, a collective motion of magnetic moments, strongly couples with conduction electrons. A novel method for spin-charge conversion based on the coupling is studied. We found an unconventional voltage related to injected spins in a ferromagnetic metal. The voltage measurements were done by changing spin polarization, magnetization, and electrodes directions. For further clarification, we considered use of microwave to excite spin waves and established a method for separating voltages due to microwave and others.

Free Research Field

スピントロニクス