Holographic Observation of Magnetic Fine-Structures in New Magnetic Materials
Holographic Observation of Magnetic Fine-Structures in New Magnetic Materials
复制标题
新型磁性材料中磁性精细结构的全息观察
DOI：
10.1017/s1431927602101371
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发表时间：
2002
影响因子：
2.8
通讯作者：
T. Suzuki
中科院分区：
文献类型：
--
作者：
T. Tanji;S. Hasebe;T. Suzuki
用电子全息术观察到了新的磁性材料，金属多层膜（Co/Cu）和颗粒膜（Fe-Zr）。巨磁电阻效应（GMR）是由于导电电子的自旋相关散射引起的，这种散射是由于相邻铁磁层之间通过磁性间隔层（多层膜）或磁性基质中相邻铁磁颗粒之间的磁耦合（颗粒膜）引起的。然而，到目前为止，这种耦合的直接观察几乎没有报道。
New magnetic materials, metal multilayers (Co/Cu) and granular films (Fe-Zr), have been observed by electron holography. Giant magnetoresistance (GMR) is attributed to the spin-dependent scattering of conduction electrons, which arises from the magnetic coupling between each adjacent ferromagnetic layers through a nonmagnetic spacer layer (multilayers), or between neighboring ferromagnetic particles in nonmagnetic matrix (granular films). Direct observation of such a coupling, however, has hardly been reported so far.