Reduced resonance frequency and enhanced coupling coefficient in fishtailing magnetoelectric resonator

被引：7
|
作者：
Min, Shugang [1 ]
Wang, Ruofei [1 ]
Wang, Yanpan [1 ]
Song, Kaixin [1 ]
Chu, Zhaoqiang [1 ,2 ]
机构：
[1] Harbin Engn Univ, Qindao Innovat & Dev Base, Harbin 150001, Peoples R China
[2] Harbin Engn Univ Qindao, Qindao Innovat & Dev Ctr, Harbin 266071, Peoples R China
来源：
APPLIED PHYSICS LETTERS | 2023年 / 123卷 / 15期
基金：
中国国家自然科学基金;
关键词：
COMPOSITE; SENSORS;
D O I：
10.1063/5.0166133
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Reducing the resonance frequency of the first-order longitudinal vibration mode for a bulk magnetoelectric (ME) resonator has been a challenge for very low frequency (VLF) magnetic sensing and transmitting application. In this work, we design and fabricate a fishtailing ME resonator that reduces the anti-resonance frequency from 18.8 to 12.2 kHz and the resonance frequency from 18.2 to 11.5 kHz compared with conventional 1-1 typed resonator. Meanwhile, a significant enhancement of the resonant ME coupling coefficient [from similar to 8271 to similar to 11 400 V/(cm Oe)] is also realized. Finite element simulation and lumped mass method are used to calculate and analyze the principles of the reduced resonance frequency and the reasons for enhanced coupling performance. The geometry tailoring method in this work is believed to inspire applications of the resonant ME effect at very low frequency.
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页数：6
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