Year: 1998
Type: article
Abstract: The reflectivity of the itinerant ferromagnet $\mathrm{SrRuO}{}_{3}$ has been measured between 50 and 25 000 $\mathrm{cm}{}^{\ensuremath{-}1}$ at temperatures ranging from 40 to 300 K, and used to obtain conductivity, scattering rate, and effective mass as a function of frequency and temperature. We find that at low temperatures the conductivity falls unusually slowly as a function of frequency (proportional to $1/{\ensuremath{\omega}}^{1/2}$), and at high temperatures it even appears to increase as a function of frequency in the far-infrared limit. The data suggest that the charge dynamics of $\mathrm{SrRuO}{}_{3}$ are substantially different from those of Fermi-liquid metals.
Source: Physical Review Letters
Institution: University of California, Santa Cruz
Language: English
Field: Materials Science
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W2209144164