TY - JOUR
T1 - Non-fermi-liquid behavior of SrRuO3
T2 - Evidence from infrared conductivity
AU - Kostic, P.
AU - Okada, Y.
AU - Collins, N. C.
AU - Schlesinger, Z.
AU - Reiner, J. W.
AU - Klein, L.
AU - Kapitulnik, A.
AU - Geballe, T. H.
AU - Beasley, M. R.
PY - 1998/9/21
Y1 - 1998/9/21
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0032555805&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.81.2498
DO - 10.1103/PhysRevLett.81.2498
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SN - 0031-9007
VL - 81
SP - 2498
EP - 2501
JO - Physical Review Letters
JF - Physical Review Letters
IS - 12
ER -