Autowave processes in a Fabry–Perot interferometer containing a complex nonlinear medium

Abstract

We have measured the low-temperature specific heats in the range 1.5-6 K, the magnetic susceptibilities in the range 77-300 K and the electrical resistivities in the range 2-300 K for four Ni,m-xTix (x=40, 55, 65 and 70) metallic glasses. The density of states near the Fermi level is found to be an increasing function of Ti concentration. A detailed comparison has been made on the electronic structure among the four similar metallic glasses Cu-Zr, Cu-Ti, Ni-Zr and Ni-Ti. The Debye temperature & in Ni-Ti is found to be the highest among these four systems. The Debye temperature & is discussed in relation to the crystallisation temperature T, and also the characteristic temperature A involved in an expression for the temperature dependence of the electrical resistivity.