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Kinetic temperature gradient driven modes in inhomogeneous plasmas

A. I. Smolyakov·M. Yagi·Y. Kishimoto
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Abstract

New unstable temperature gradient driven modes in an inhomogeneous plasma are identified. These modes represent transient $ω\simeq k_{\Vert }v_{th}^{(e,i)}$ sound oscillations in magnetized plasma that are kinetically destabilized via Landau interactions. Electron and ion sound branches are unstable for large values of the Larmor radius parameter $% k_{\bot}ρ_{e,i}\gg 1,$ respectively. The instability occurs due to a specific plasma response that significantly deviates from Boltzmann distribution in the region $k_{\bot}ρ_{i,e}\gg 1$ . Pacs: 52.35 Kt, 52.35 Qz

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A. I. Smolyakov, M. Yagi, Y. Kishimoto. 2001-11-21. Kinetic temperature gradient driven modes in inhomogeneous plasmas. https://arxiv.org/abs/physics/0111156

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