FeMn based spin valves exhibiting high GMR ratio and high exchange bias field were fabricated by improving the interface roughness as well as the crystallographic texture. A highly oriented (111) NiFe free layer deposited with substrate bias promoted strong (111) textures of Cu and FeMn while maintaining sharp interfaces, resulting in a high exchange bias field, a high blocking temperature, and a high GMR ratio. The correlation between the interlayer coupling energy (J/sub free-pinned/) and the interface sharpness was studied as a function of Cu spacer thickness for spin valves with free and pinned NiFe layers deposited under various bias conditions.
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机译：通过改善界面粗糙度以及晶体织构，制造出具有高GMR比和高交换偏置场的FeMn基自旋阀。沉积有衬底偏压的高度取向（111）的无NiFe层促进了Cu和FeMn的强（111）织构，同时保持了清晰的界面，从而导致了高交换偏压场，高阻挡温度和高GMR比。研究了在各种偏压条件下沉积有自由和固定NiFe层的自旋阀的层间耦合能（J / sub free-pinned /）和界面清晰度之间的相关性，其与Cu隔层厚度的关系。
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