论文标题
中性石墨烯中的电子粘度和能量松弛
Electronic viscosity and energy relaxation in neutral graphene
论文作者
论文摘要
我们探索在Corbino几何形状中中性石墨烯中狄拉克费物的流体动力学。在没有磁场的情况下，散装欧姆电荷流量和流体动力学流量被解耦。但是，能量流确实通过粘性耗散和能量放松影响系统的总体电阻，这必须由当前源所做的工作补偿。求解流体动力方程，我们发现局部温度和电势在与导线的接口以及设备电阻的界面上是不连续的，并认为这使得Corbino几何形状成为对狄拉克流体进行实验性观察的可行选择。
We explore hydrodynamics of Dirac fermions in neutral graphene in the Corbino geometry. In the absence of magnetic field, the bulk Ohmic charge flow and the hydrodynamic energy flow are decoupled. However, the energy flow does affect the overall resistance of the system through viscous dissipation and energy relaxation that has to be compensated by the work done by the current source. Solving the hydrodynamic equations, we find that local temperature and electric potential are discontinuous at the interfaces with the leads as well as the device resistance and argue that this makes Corbino geometry a feasible choice for an experimental observation of the Dirac fluid.
