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Published in: Archive of Applied Mechanics 7/2021

22-04-2021 | Technical notes

Magnetically induced redistribution of mobile charges in bending of composite beams with piezoelectric semiconductor and piezomagnetic layers

Authors: Guolin Wang, Guoquan Nie, Xianglin Liu, Jiashi Yang

Published in: Archive of Applied Mechanics | Issue 7/2021

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Abstract

We study the effects of an applied magnetic field on mobile charges in a composite beam of piezoelectric semiconductor and piezomagnetic layers. The macroscopic theory of piezoelectrics/piezomagnetics and the drift–diffusion theory of semiconductors are used. A one-dimensional model for beam bending is derived. An analytical solution is obtained, showing that bending and axial polarization develops in the beam under the applied magnetic field and that the mobile charges move to screen the effective polarization charges. Hence the composite beam exhibits an interaction between the applied magnetic field and semiconduction. The results are useful in piezotronic devices interacting with magnetic fields.

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Literature
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Metadata
Title
Magnetically induced redistribution of mobile charges in bending of composite beams with piezoelectric semiconductor and piezomagnetic layers
Authors
Guolin Wang
Guoquan Nie
Xianglin Liu
Jiashi Yang
Publication date
22-04-2021
Publisher
Springer Berlin Heidelberg
Published in
Archive of Applied Mechanics / Issue 7/2021
Print ISSN: 0939-1533
Electronic ISSN: 1432-0681
DOI
https://doi.org/10.1007/s00419-021-01954-w

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