[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-W241-11] Mechanical modulation of magnetic anisotropy in Pt/Co films
deposited on a flexible substrate

〇太田 進也¹、浅井 遼¹、小関 貴裕²、赤峰 宏和²、藤井 達也²、生津 資大²、竹延 大志³、小山 知弘¹、千葉 大地¹ (1.東大物工、2.兵庫県大、3.早大理工)

キーワード：magnetostriction,perpendicular magnetic anisotropy,flexible substrate

Pt/Co structures were deposited on a flexible substrate, varying the thickness of Co. From the thickness dependence, it was confirmed that perpendicular magnetic anisotropy in the films arose from the interface magnetic anisotropy. The perpendicular magnetic anisotropy changed with a uniaxial strain, while the interface magnetic anisotropy remained unchanged. The sign of the change did not match with that expected in bulk Co, but with that of PtCo. But the interfacial PtCo alloying should yeild interface magnetic anisotropy which didn't change with the strain. More researches are needed for a consistent explanation.