Two important effects were found in rapidly quenched Al-Si alloys: (i) the enhancement of the electron-phonon coupling parameter, revealed by the variation of Tc and the slope of thermal resistivity; (ii) the metastability of these crystalline metallic alloys, observed by the enthalpy difference between the as-quenched and the equilibrium state. These effects were interpreted as being due to the metallic state of the Silicon atoms trapped in the Al matrix
Roland Logé, Jamasp Jhabvala, Navid Sohrabi