GMR Co/Ag/Co/Gd四层薄膜铁磁共振的巨磁展宽
Giant magnetic broadening of ferromagnetic resonance in a GMR Co/Ag/Co/Gd quadlayer
摘要：
磁共振阻尼和巨磁电阻效应都受到铁磁薄膜局域态密度的强烈影响。我们采用Co和Gd之间的反铁磁耦合，以提供一个自发的变化，从平行到反平行排列的两个Co膜。磁阻尼的急剧增加伴随着从平行到反平行排列的变化，类似于巨磁阻中的电阻率变化。
英文摘要：
Both magnetic-resonance damping and the giant magnetoresistance effect have been predicted to be strongly affected by the local density of states in thin ferromagnetic films. We employ the antiferromagnetic coupling between Co and Gd to provide a spontaneous change from parallel to antiparallel alignment of two Co films. A sharp increase in magnetic damping accompanies the change from parallel to antiparallel alignment, analogous to resistivity changes in giant magnetoresistance.
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