セミナー・シンポジウム Seminars & Symposium

【8/27】Xiaofeng Jin Special Lecture

AIMR Special Lecture のご案内

8月1日よりAIMRの客員教授に着任した復旦大学(Fudan University) Xiaofeng Jin 教授のレクチャーを行います。

講演者

Xiaofeng Jin 教授
(Fudan University および 東北大学AIMR)

講演題目

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

日時

2018年8月27日（月） 14:00-

会場

東北大学片平キャンパス　知の館3F 講義室

概要

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.

リーフレット

・Xiaofeng Jin Special Lecture

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