Finite amplitude Magnetic-field 2 Acoustic fields 1 Acoustic wave propagation 1 Circularly-polarized 1 Counterpropagating waves 1 Damping 1 Electric fields 1 Electromagnetic fields 1 Flux tubes 1 Free energy 1 Fusion plasmas 1 Gyrokinetics 1 Hybrid simulation 1 Ion acoustic waves 1 Ion-acoustic modes 1 Ions 1 Landau damping 1 Linear instabilities 1 Magnetic fields 1 Magnetoplasma 1 Multi-fluids 1 Non linear 1 Non-linear phenomenon 1 Nonlinear growth 1 Plasma diagnostics 1 Plasma nonlinear phenomenon 1 Plasmas 1 Property 1 Upper Bound 1