Observation of large wave vector interface spin waves: Ni(100)/fcc Co(100) and Cu(100)/Co(100)

J. Rajeswari; H. Ibach; C. M. Schneider

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Observation of large wave vector interface spin waves: Ni(100)/fcc Co(100) and Cu(100)/Co(100)

机译：大波矢量界面自旋波的观测：Ni（100）/ fcc Co（100）和Cu（100）/ Co（100）

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Using electron energy loss spectroscopy, we have probed the spin waves of fcc(100) cobalt after capping with 1-3 atom layers of pseudomorphic nickel or up to 12 atom layers of copper. The intensity decay of the spin wave signal is quantitatively described by the mean-free path of the incident and the scattered electron within the capping layer. The observed spin waves are therefore localized at the cobalt side of the Co/Ni and Co/Cu interfaces. Compared to the free cobalt surface, the interface spin waves are downshifted in frequency. The effect is attributed to a reduced exchange interaction between cobalt atoms at the interface.

机译：使用电子能量损失谱，我们用1-3个原子层的伪晶镍或最多12个原子层的铜封端后，探测了fcc（100）钴的自旋波。自旋波信号的强度衰减通过入射的平均自由程和覆盖层内的散射电子来定量描述。因此，观察到的自旋波位于Co / Ni和Co / Cu界面的钴侧。与自由钴表面相比，界面自旋波的频率下移。该作用归因于界面处钴原子之间交换相互作用的减少。

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来源
《Physical review》 |2013年第23期|235415.1-235415.5|共5页
作者
J. Rajeswari; H. Ibach; C. M. Schneider;
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作者单位

Peter Grunberg Institut (PGI-6), Forschungszentrum Juelich, 52425 Juelich, Germany,Juelich Aachen Research Alliance, Germany;

Peter Grunberg Institut (PGI-3), Forschungszentrum Juelich, 52425 Juelich, Germany,Juelich Aachen Research Alliance, Germany;

Peter Grunberg Institut (PGI-6), Forschungszentrum Juelich, 52425 Juelich, Germany,Juelich Aachen Research Alliance, Germany;

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正文语种 eng
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spin waves; magnetic properties of interfaces (multilayers, superlattices, heterostructures);

机译：自旋波界面的磁性（多层;超晶格;异质结构）;

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机译：Cu（100）上超薄铁膜中纳米马氏体相的大波矢量表面自旋波
2. Surface spin waves of fcc cobalt films on Cu(100): High-resolution spectra and comparison to theory [J] . J. Rajeswari, H. Ibach, C. M. Schneider, Physical review . 2012,第16期

机译：Cu（100）上fcc钴膜的表面自旋波：高分辨率光谱和与理论的比较
3. Spin-reorientation transition of Ni/Cu(100) and CO/Ni/Cu(100): Separation of the surface and bulk components of the x-ray magnetic circular dichroism spectrum [J] . Kenta Amemiya, Enju Sakai, Daiju Matsumura, Physical review. B, Condensed Matter And Materials Physics . 2005,第21期

机译：Ni / Cu（100）和CO / Ni / Cu（100）的自旋取向转变：X射线磁性圆二色性光谱的表面和主体组分的分离
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7. Observation of large wave vector interface spin waves: Ni(100)/fcc Co(100) and Cu(100)/Co(100) [O] . Rajeswari J., Ibach H., Schneider C. M. 2013

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Observation of large wave vector interface spin waves: Ni(100)/fcc Co(100) and Cu(100)/Co(100)

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