Condensed Matter


Strain Induced Electric Effects in Materials

Authors: Yuanjie Huang

In this work, we put forward Yuheng Zhang equation, a newly found law for condensed materials. Utilizing this law, we mainly investigate the mechanical-electric coupling effect in materials, which is named asYuheng Zhang effect. Through investigations, it is found that 1) under strain gradient, materials could behave as a p-n junction, exhibiting current-rectifying properties; 2) thermoelectric power or Seebeck coefficient of materials is contributed by thermal expansion (contraction) and Yuheng Zhang effect, which may be described by Yuheng Zhang coefficient; 3) this effect gives a new mechanism of electron-phonon interaction; 4) an electric field always accompanies defects in materials, such as dislocations, Abrikosov vortices and so on, and their electric field and related electrical potential are given; 5) strain gradient can cause an electric polarization in dielectric materials; 6) the gravity induced electric field persists within planets including the earth; 7) Yuheng Zhang effect may be the microscopic physical origin of flexoelectric effect and the flexoelectric coefficients can be derived by means of Yuheng Zhang equation; 8) microscopic theory of shock polarization, another long-standing problem in the world, may be clarified in terms of Yuheng Zhang effect. In all, Yuheng Zhang equation and Yuheng Zhang effect offer people new understanding of electric properties of strained materials, and may find various applications in multi-areas.

Comments: 39 Pages.

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Submission history

[v1] 2018-03-13 11:16:04

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