Low-frequency dynamics in metal alloys: "ferroelectric" anomalies at finite frequencies
Shcherbakov A. S. , Katsnel'son M. I. , Trefilov A. V. , Sorokin N. L., Valiulin E. G.
A giant absorption of the power of an electromagnetic field has been observed in metal alloys. The effect, resonant in the frequency, is observed in a narrow concentration interval near an electronic phase transition. The interrelation between the observed effect and a dipole-active low-frequency lattice dynamics is discussed.