Experimental study on spin-vorticity conversion of spin hydrodynamic generation

2017 Fiscal Year Final Research Report

• Project/Area Number: 16H07437
• Research Category: Grant-in-Aid for Research Activity Start-up
• Allocation Type: Single-year Grants
• Research Field: Condensed matter physics II
• Research Institution: Ochanomizu University
• Principal Investigator: Takahashi Ryo お茶の水女子大学, 基幹研究院, 助教 (30782023)
• Project Period (FY): 2016-08-26 – 2018-03-31
• Keywords: スピン流 / 流体力学

Outline of Final Research Achievements

Spin hydrodynamic generation (SHDG) is generation of spin currents from fluid mechanical motion. The SHDG stems from a direct interaction between mechanical rotation and electron spins, called spin-rotation coupling. Especially in a fluid, vorticity, local rotation in a fluid, can be utilized as a source of the mechanical spin-current generation. In this study, we performed the SHDG measurement in a laminar flow, which is realized even in a micro or nano scale. By comparing results of the current study of the laminar-flow SHDG with that of the conventional study of turbulent one, we clarified SHDG’s properties especially due to the spin-rotation coupling. The results indicate the applicability of the SHDG to micro or nano scale physics, including spin-conversion physics by using the spin currents.

Free Research Field

スピントロニクス