Spin waves in CoFeB on ferroelectric domains combining spin mechanics and magnonics
Spin waves in CoFeB on ferroelectric domains combining spin mechanics and magnonics
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DOI：
10.1016/j.ssc.2013.12.019
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发表时间：
2014-11-01
影响因子：
2.1
通讯作者：
Grundler, D.
中科院分区：
文献类型：
--
作者：
Brandl, F.;Franke, K. J. A.;Grundler, D.
由磁弹性耦合和外加电场控制的自旋动力学可能在未来的磁子学发展中起着至关重要的作用，即，利用自旋波来传输和处理信息。我们已经进行了宽带自旋波光谱的磁致伸缩CoFeB合金生长在铁电BaTiO 3衬底上引起的弹性应变与准周期调制。我们发现特征的本征频率和自旋波模式与大群速度和小阻尼。这些结果为可编程磁控管的电场控制提供了光明的前景。(C)2014由Elsevier Ltd.出版
Spin dynamics controlled by magnetoelastic coupling and applied electric fields might play a vital role in future developments of magnonics, i.e., the exploitation of spin waves for the transmission and processing of information. We have performed broadband spin-wave spectroscopy on a magnetostrictive CoFeB alloy grown on a ferroelectric BaTiO3 substrate causing elastic strain with a quasi-periodic modulation. We find characteristic eigen frequencies and spin-wave modes with large group velocities and small damping. These results suggest bright perspectives for electric-field control of reprogrammable magnonics. (C) 2014 Published by Elsevier Ltd.