Bound states of 3He in 3He-4He mixture films.

16 pages, Latex, 8 figs available by fax from pavloff@ipncls.in2p3.fr3He atoms dissolved in superfluid 4He may form dimers (3He)2 in two-dimensional geometries. We study dimer formation in films of dilute 3He-4He mixture. After designing a schematic 3He-3He interaction potential we calculate the dimer binding energy for various substrates. It is shown that 3He impurity states localized near the substrate give rise to the largest magnitudes of the binding energies