【摘 要】
：
Ferromagnets play an important role in our daily lives, in such common devies as: compasses, electric motors and hard disks.For a long time, the antiferromagnet
【机 构】
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Key Laboratory of Advanced Materials (MOE), School of Materials Science and Engineering, Tsinghua Un
【出 处】
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中国科学:物理学 力学 天文学（英文版）
论文部分内容阅读
Ferromagnets play an important role in our daily lives, in such common devies as: compasses, electric motors and hard disks.For a long time, the antiferromagnetic (AFM) materials have been ignored for the applications.Even the Nobel laureate L.Néel said that antiferromagnets are interesting,but useless1).This perception changed in the 1990s, when AFM alloy was used as an exchange-coupling layer to pin ferromagnetic electrodes in magnetic tunnel junctions, which are the main components of read head and nonvolatile magnetic random access memories.It should be noted that the antiferromagnet here is still a supporting material, with its spin structure remaining almost unchanged during device operation.
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