Suppression of the drift-cyclotron instability by lower-hybrid-drift turbulence

The nonlinear interaction of the drift cyclotron and lower-hybrid-drift modes is examined. A renormalized equation for the drift cyclotron ion response is derived and solved. Lower-hybrid-drift modes comprise the turbulent background. For levels of lower-hybrid-drift turbulence of eΦ/Ti∼(me/mi)1/2(ρi/L)3/4, the growth rate of the drift cyclotron mode begins to be reduced by ion cyclotron resonance broadening, which is the dominant nonlinear effect.