The room-temperature vacuum deposition of Mn onto (110) CdTe surfaces which had been cleaved  in situ  led to interdiffusion when the metal coverage was less than 0.3nm. This was attributed to a partial Mn-Cd exchange reaction which occurred in the interface region, and gave a semi-magnetic semiconducting Cd1-xMnxTe surface alloy as the reaction product. The value of x depended upon the original Mn coverage.

A.Wall, A.Raisanen, G.Haugstad, L.Vanzetti, A.Franciosi: Physical Review B, 1991, 44[15], 8185-94

Figure 19

Diffusivity of Mn in CdTe

(squares: Cd/Te = 1.7, diamonds: Cd/Te = 2.5, triangles: Cd/Te = 0.5)