摘要： A particle simulation based on gyrokinetic electron and fully kinetic ion (GeFi) method is conducted to investigate the plasma instabilities of the current sheet in the absence and presence of an artificial particle drift along the guide field. In contrast to the fully-kinetic electron and ion simulation, GeFi
has a great advantage in the aspect of computation efficiency by removing the rapid cyclotron electron motion while retaining the important effects of Larmor radius, wave-particle interaction and electron off-diagonal thermal pressure, thereby a wide range of spatial and temporal problems ranging from low frequency magnetohydrodynamic to lower hybrid and whistler scales is covered. The simulation results show a good agreement with the existing theories and the electrostatic lower hybrid instability is observed, which is not strong enough to excite the fast magnetic reconnection. The mode structures in real space and dependence of typical parameters are given. In addition, the temperature anisotropy of electrons and ions is discussed theoretically and the corresponding linear growth rate of the electrostatic instability is given.