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2014 Fiscal Year Final Research Report

Exploration of new spin functionalities in magnetic/non-magnetic heterostructures

Research Project

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Project/Area Number 25600069
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Applied materials
Research InstitutionTohoku University

Principal Investigator

NITTA Junsaku  東北大学, 工学(系)研究科(研究院), 教授 (00393778)

Co-Investigator(Renkei-kenkyūsha) KOHDA Makoto  東北大学, 大学院工学研究科, 准教授 (00420000)
Project Period (FY) 2013-04-01 – 2015-03-31
Keywordsスピン軌道相互作用 / ラッシュバ効果 / スピンホール効果 / 電界制御
Outline of Final Research Achievements

To clarify the mechnisim of magnetization reversal, we made Pt/Co/Pt structures with inversion symmetry and and AlO/Co/Pt structures with inversion asymmetry. In Pt/Co/Pt structures, we succeeded in evaluating conversion relation between current and magnetic field induced by spin Hall effect. We found that both Rashba and spin Hall effects coexist in AlO/Co/Pt structures. The Rashba effect is dominant with increasing Co thickness while the spin Hall effect is getting larger with increasing Pt thickness.

Free Research Field

スピントロニクス

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Published: 2016-06-03  

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