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

被引：201
|
作者：
Kostic, P [1 ]
Okada, Y
Collins, NC
Schlesinger, Z
Reiner, JW
Klein, L
Kapitulnik, A
Geballe, TH
Beasley, MR
机构：
[1] Univ Calif Santa Cruz, Dept Phys, Santa Cruz, CA 95064 USA
[2] Stanford Univ, Edward L Ginzton Labs, Stanford, CA 94305 USA
[3] Japanese Patent Off, Minist Int Trade & Ind, Tokyo 100, Japan
[4] Bar Ilan Univ, Dept Phys, IL-52900 Ramat Gan, Israel
来源：
PHYSICAL REVIEW LETTERS | 1998年 / 81卷 / 12期
关键词：
D O I：
10.1103/PhysRevLett.81.2498
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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 l/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 SrRuO3 are substantially different from those of Fermi-liquid metals. [S0031-9007(98)07069-0].
引用
收藏
页码：2498 / 2501
页数：4
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