Magnetically Controlled Surface Acoustic Waves on Multiferroic BiFeO3
Magnetically Controlled Surface Acoustic Waves on Multiferroic BiFeO3
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DOI：
10.1103/physrevapplied.9.034034
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发表时间：
2018-03-30
影响因子：
4.6
通讯作者：
Onose, Y.
中科院分区：
文献类型：
--
作者：
Ishii, Y.;Sasaki, R.;Onose, Y.
我们在多铁性BiFeO_3晶体上制作了声表面波(SAW)器件，而SAW器件通常是在非磁性压电体上制作的，可以作为带通滤波器使用。利用时域方法，对BiFeO_3表面的声表面波激发进行了实验研究。声表面波信号的幅度和相位受到反映BiFeO_3多铁性的外加磁场的调制。多铁性声表面波器件的磁可控性似乎有助于声表面波器件的进一步功能化。
We fabricate a surface acoustic wave (SAW) device on a multiferroic BiFeO3 crystal while SAW devices are usually fabricated on nonmagnetic piezoelectrics and commercially available as bandpass filters. By using the time-domain technique, we demonstrate the SAW excitation on BiFeO3. The amplitude and phase of the SAW signal are modulated by the external magnetic field reflecting the multiferroicity of BiFeO3. The magnetic controllability of the multiferroic SAW device seems useful for the further functionalization of the SAW device.