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Magnetoresistive-effect element having electrode layers oppositely disposed on main surfaces of a magnetoresistive-effect thin film having hard magnetic bias layers with a particular resistivity
Magnetoresistive-effect element having electrode layers oppositely disposed on main surfaces of a magnetoresistive-effect thin film having hard magnetic bias layers with a particular resistivity
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机译:磁阻效应元件,其电极层相对地设置在具有具有特定电阻率的硬磁偏置层的磁阻效应薄膜的主表面上
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摘要
A first ferromagnetic layer is made to show a single magnetic domain to prevent any magnetic walls from appearing. A pair of bias layers 4 are made of a hard magnetic material showing a high resistivity are arranged at opposite ends of a TMR thin film 3. As a result, the sense current flowing through the TMR thin film 3 is prevented from diverting to the bias layers 4. Thus, a sufficiently strong bias magnetic field can be applied to the TMR thin film 3. As a result, the free layer 13 of the TMR thin film 3 is made to show a single magnetic domain to prevent any magnetic walls from appearing.
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