Magnetically Induced Carrier Distribution in a Composite Rod of Piezoelectric Semiconductors and Piezomagnetics

Materials
Guolin WangJiashi Yang

Abstract

In this work, we study the behavior of a composite rod consisting of a piezoelectric semiconductor layer and two piezomagnetic layers under an applied axial magnetic field. Based on the phenomenological theories of piezoelectric semiconductors and piezomagnetics, a one-dimensional model is developed from which an analytical solution is obtained. The explicit expressions of the coupled fields and the numerical results show that an axially applied magnetic field produces extensional deformation through piezomagnetic coupling, the extension then produces polarization through piezoelectric coupling, and the polarization then causes the redistribution of mobile charges. Thus, the composite rod exhibits a coupling between the applied magnetic field and carrier distribution through combined piezomagnetic and piezoelectric effects. The results have potential applications in piezotronics when magnetic fields are relevant.

References

Nov 12, 2003·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Shuxiang DongDwight Viehland
Jul 29, 2005·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Fred S Hickernell
Oct 26, 2011·Nanotechnology·Giuseppe RomanoZhong Lin Wang
May 1, 2012·Advanced Materials·Rodolfo AraneoChristian Falconi
Jun 12, 2012·Nano Letters·Nuanyang CuiZhong Lin Wang
Jan 11, 2018·Advanced Materials·Yudong LiuZhong Lin Wang
Jul 29, 2019·IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control·Yuxing Liang, Yuantai Hu

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