Control of magnetic domain walls in nanowires of strongly correlated electron material

Research Project

Project/Area Number	21710142
Research Category	Grant-in-Aid for Young Scientists (B)
Allocation Type	Single-year Grants
Research Field	Microdevices/Nanodevices
Research Institution	National Institute for Materials Science
Principal Investigator	NAGAI Takuro National Institute for Materials Science, 電子顕微鏡クラスター, 主任エンジニア (90531567)
Project Period (FY)	2009 – 2010
Project Status	Completed (Fiscal Year 2010)
Budget Amount *help	¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000) Fiscal Year 2010: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000) Fiscal Year 2009: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords	強磁性ナノワイヤ / ボルテックス磁壁 / トランスバース磁壁 / カイラリティ制御 / 強相関電子系 / スピントロニクス / ローレンツ電子顕微鏡法
Research Abstract	We performed in situ Lorentz microscopic observation of ferromagnetic perovskite-type manganite nanowires with the magnetic field applied to control the chirality of magnetization distribution of the magnetic domain walls. The chirality of vortex walls was controlled by the direction of external magnetic field in alternating current demagnetization. The chirality of transverse walls formed at the same pinning site was reversed by the reversal of the magnetization direction of separated domains.

Report

(3 results)