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تسجيل مستخدم جديدManipulating the magnetic anisotropy of cobalt doped titanium dioxide by carrier accumulation
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Based on first-principles calculations, we predict that the magnetic anisotropy energy (MAE) of Co-doped TiO$_2$ sensitively depends on carrier accumulation. This magnetoelectric phenomenon provides a promising route to directly manipulate the magnetization direction of diluted magnetic semiconductor by external electric-fields. We calculate the band structures and reveal the origin of carrier-dependent MAE in k-space. In fact, the carrier accumulation shifts the Fermi energy and regulates the competing contributions to MAE. The first-principles calculations provide a straightforward way to design spintronics materials with electrically controllable spin direction.
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N.I. Matskevich
, E.V. Korotaev (Nikolaev Institute of Inorganicn Chemistry SB RAS
, Novosibirsk
2015
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