See also: A.N. Skrinskii, Yu.A. Tikhonov, E.B. Levichev, I.M. Dremin, M.B. Voloshin
PACS: 13.66.Bc, 13.66.Jn, 12.20.Fv, 12.38.-t, 12.38.Aw, 13.25.Gv, 14.40.Lb, 14.60.Fg