See also: V.L. Lyuboshits, O.A. Khrustalev, B.M. Smirnov, G.V. Skrotskii
PACS: 51.30.+i, 51.10.+y, 51.20.+d, 05.70.Ce, 32.80.Bx, 32.10.Fn, 32.60.+i, 36.10.Dr, 32.10.Dk