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

页码：2498 / 2501

页数：4

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