High-Efficiency Elastic Wave Rectifier in One-Dimensional Linear Magnetoelastic Phononic Crystal Slabs by an External Magnetostatic Field

Luyang Feng, Jiujiu Chen, Hongbo Huang, Shaoyong Huo, Zhuhua Tan, Xu Han, and Guoliang Huang

Phys. Rev. Applied 13, 064042 – Published 17 June 2020

Abstract

Reciprocity is a fundamental property of wave propagation in linear time-invariant media. However, it is substantially harder to break reciprocity for elastic waves in a linear elastic system with the help of a magnetostatic field, since elastic waves are spinless in nature. Here, we realize nonreciprocal elastic waves in one-dimensional linear magnetoelastic phononic crystal slabs by an external magnetostatic field. The asymmetric dispersion of spin waves, which is induced by the simultaneous breaking of the time-reversal and spatial-inversion symmetries, results in an efficient elastic wave diode effect in a periodic system due to magnetoelastic interactions. Remarkably, a bidirectional nonreciprocity of elastic waves is achieved based on the folding-back effect of the periodic structure. Our proposed scheme opens up avenues for the design of nonreciprocal devices, such as on-chip tunable diodes, rectifiers, and topological insulators.

Received 7 January 2020
Revised 13 May 2020
Accepted 18 May 2020

DOI:https://doi.org/10.1103/PhysRevApplied.13.064042

Physics Subject Headings (PhySH)

Acoustic metamaterials Linear acoustics Magnetoelastic effect

Diodes

Nonlinear Dynamics

Authors & Affiliations

Luyang Feng¹, Jiujiu Chen ^1,*, Hongbo Huang ¹, Shaoyong Huo¹, Zhuhua Tan^2,†, Xu Han^2,‡, and Guoliang Huang³

¹State Key Laboratory of Advanced Design and Manufacturing for Vehicle Body, College of Mechanical and Vehicle Engineering, Hunan University, Changsha 410082, People’s Republic of China
²School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, People’s Republic of China
³Department of Mechanical and Aerospace Engineering, University Missouri, Columbia, Missouri 65211, USA

^*jjchen@hnu.edu.cn
^†zhtan@hnu.edu.cn
^‡hanxu@hnu.edu.cn

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand

Issue

Vol. 13, Iss. 6 — June 2020

Subject Areas

Reuse & Permissions

Access Options

Author publication services for translation and copyediting assistance advertisement

Physical Review Applied