Seminars & Symposium

【8/27】Xiaofeng Jin Special Lecture

AIMR Special Lecture

AIMR will hold a special lecture given by Prof. Xiaofeng Jin, who is a full professor at Department of Physics State Key Laboratory of Surface Physics at Fudan University, and recently became a Visiting professor of AIMR. We look forward to your participation.

Speaker

Prof. Xiaofeng Jin
(Fudan University and AIMR, Tohoku University)

Title

Generation and Detection of Pure Spin Current in an H-shape Structure of a Single Metal

Date

August 27th (Mon.), 2018 14:00-

Venue

3rd floor, Lecture Theater in TOKYO ELECTRON House of Creativity, Katahira Campus

Abstract

Distinct from all the existing methods for determining spin Hall angle with bilayers, we have developed a new approach based on the mesoscopic H-shape structure, which generates and detects pure spin current in a single metal. Using this approach we have unequivocally addressed the long-standing controversy of the magnitude of the spin Hall angle of gold. By exploiting the long spin diffusion length of Cu and the large spin-orbit coupling of Bi, we have realized very large spin Hall effect in 10 nm Cu films δ-doped with 0.15 nm of Bi. This new artificial material can generate a large spin orbit torque to switch an adjacent Fe layer. We have thus demonstrated new artificial materials with simultaneously large spin Hall angle and long spin diffusion length.

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・Xiaofeng Jin Special Lecture

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