[R. N. Boyd]:

Plasma is found everywhere on Earth. It is not only in the atmosphere, but in the ground. In solids, these plasmas are referred to as "solid state plasmas", and are treated much the same as any other plasma, albeit with a much smaller mean free path.

[Bill Hamilton]:

Solid state plasmas? Reference please. Since plasma is defined as a gas consisting of ions, electrons, and neutral particles; the behavior of the gas is dominated by the electromagnetic interaction between the charged particles. Are you talking about plasmas that retain their ions as they are crystallized into solids? If so, we could make some interesting batteries.

[R. N. Boyd]:

Here is a (partial) list of reference materials regarding solid state plasmas:

Department of Semiconductors and Vacuum Electronics, Kharkov State University, Ukraine (Professor E. D. Prokhorov, Department Head)

Low-Temperature Plasma Chemistry; Mechanism of Plasma Treatment (Kuzuya, Masayuki)

http://www.icpig01.nuqe.nagoya-u.ac.jp/paper/Onishchenko1.pdf (expired link) - Modification of O'Neil Confinement Theorem for Plasma Lens (I. N. Onishchenko, A. A. Goncharov, V. I. Maslov, NSC Kharkov)

New Books on Physics Related Sciences (PACS Number 01.30.Tt)

http://www.man.ac.uk/emsps/st-pete51/S1619.html (expired link) - Physics of Solid State Plasma (I. I. Kononov)

Plasma Physics Including Thermonuclear Fusion: Plasma Basis Properties (CSP-VINITI)

Plasma Physics Including Thermonuclear Fusion: Plasma Basis Properties -- Solid State Plasma (CSP-VINITI) -- click on the "search" button.

Vsevolod Feliksovich Gantmakher Curriculum Vitae, Laboratory of Electron Kinetics

X-Ray, Gamma-Ray Lasers and Related Plasma and Microwave Studies (List of Documents and Conference Papers)

Helicon Wave Research