[22a-W241-1~11] CS.6 10.1, 10.2, 10.3のコードシェアセッション「新規スピン操作方法および関連現象」

▼ [22a-W241-10] Electrical control of magnetism in electric double layer capacitors with a Co electrode

〇平井 孝昌¹、大日方 絢¹、日比野 有岐¹、小山 知弘¹、三輪 一元²、小野 新平²、好田 誠³、千葉 大地¹ (1.東大物工、2.電中研、3.東北大工)

キーワード：Electric field effect,Electric double layer

Recently, electric field effect on magnetism has been intensively studied. We have reported the change in Curie temperature by applying gate voltage V_G in solid state or electric double layer (EDL) capacitors with a Co electrode. One of main factors for this effect has been considered to be a modification of electron density by an electric field application. Other mechanisms (e.g. redox) have been recently suggested and become controversial. In this presentation, the electric field effects on magnetism in EDL capacitors with a Co electrode will be discussed and the results will be compared with intentionally oxidized Co films by an oxygen plasma ashing.