See also: V.M. Svistunov, M.A. Belogolovskii, E.G. Ponyatovskii, I.T. Belash, A.I. Buzdin, N.B. Brandt
PACS: 62.50.+p, 74.45.+c, 74.25.Kc, 74.62.Fj, 74.50.+r, 74.25.Dw