Mechanical deformations of graphene induce a term in the Dirac Hamiltonian that is reminiscent of an electromagnetic vector potential. Strain gradients along particular lattice directions induce local pseudomagnetic fields and substantial energy gaps as indeed observed experimentally. Expanding this analogy, we propose to complement the pseudomagnetic field by a pseudoelectric field, generated by a time-dependent oscillating stress applied to a graphene ribbon. The joint Hall-like response to these crossed fields results in a strain-induced charge current along the ribbon. We analyze in detail a particular experimental implementation in the (pseudo)quantum Hall regime with weak intervalley scattering. This allows us to predict an (approximately) quantized Hall current that is unaffected by screening due to diffusion currents.

中文翻译：

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石墨烯中随时间变化的应变梯度的量子霍尔响应。

石墨烯的机械变形在狄拉克·哈密顿量中引起一个术语，使人联想到电磁矢量势。沿特定晶格方向的应变梯度会诱发局部伪磁场和大量的能隙，正如实验所观察到的。扩展这种类比，我们建议通过伪电场对伪磁场进行补充，伪电场是由施加在石墨烯带上的随时间变化的振荡应力产生的。霍尔对这些交叉场的联合响应会导致沿着带的应变感应电荷电流。我们详细分析了弱伪区间散射在（伪）量子霍尔系统中的特定实验实现。这使我们能够预测一个（近似）量化的霍尔电流，该电流不受扩散电流的屏蔽影响。