大隧
大隧
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采用高自旋极化率(P)的材料是产生大的隧穿磁电阻(TMR)效应的关键之一,而半金属(half-metal)铁磁材料的自旋极化率P理论上可达100%。
However , the large tunneling MR effect is strongly dependent upon electrode material , which is of high spin polarization . On the other hand , half-metallic material is theoretically predicted to be perfect spin polarization , nearly 100 % .