Non-fermi-liquid behavior of SrRuO3: Evidence from infrared conductivity

P. Kostic, Y. Okada, N. C. Collins, Z. Schlesinger, J. W. Reiner, L. Klein, A. Kapitulnik, T. H. Geballe, M. R. Beasley

Research output: Contribution to journalArticlepeer-review

212 Scopus citations


The reflectivity of the itinerant ferromagnet SrRuO3 has been measured between 50 and 25 000 Cm−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/ω1/2), 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 SrRuO3 are substantially different from those of Fermi-liquid metals.

Original languageEnglish
Pages (from-to)2498-2501
Number of pages4
JournalPhysical Review Letters
Issue number12
StatePublished - 21 Sep 1998


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