The influence of alloying and strain upon charge transfer across interfaces was investigated in ${\mathrm{Mo}}_{\mathit{x}}$${\mathrm{V}}_{1\mathrm{-}\mathit{x}}$/V (x=0.5, 0.75, 1) superlattices. The extension of the charge transfer was measured using the relation between the hydrogen solubility and the electron density. The hydrogen concentration was measured by means of the ${}_{}{}^1{}_{}{}^{}\mathrm{H}$${(}^{15}$N,αγ${)}^{12}$C nuclear reaction. In Mo/V superlattices, the extension of the charge transfer was found to be 3 ML. In ${\mathrm{Mo}}_{0.75}$${\mathrm{V}}_{0.25}$/V superlattices it was found to be 2 ML whereas no charge transfer was observed in a ${\mathrm{Mo}}_{0.5}$${\mathrm{V}}_{0.5}$/V superlattice.

• Received 11 April 1995

DOI:https://doi.org/10.1103/PhysRevB.52.10792