INFRARED REFLECTIVITY OF SrRuO3

被引：2

作者：

de la Cruz, Fernando P. ^{[1
,2
]}

Massa, Nestor E. ^{[3
,4
]}

Cuffini, Silvia L. ^{[5
]}

Carbon, Raul E. ^{[5
]}

机构：

[1] CNEA, Div Radioquim, RA-1429 Buenos Aires, DF, Argentina

[2] Univ Buenos Aires, Dept Fis, Buenos Aires, DF, Argentina

[3] LANAIS Espectroscopia Opt, Programa QUINOR, Dept Quim, RA-1900 La Plata, Buenos Aires, Argentina

[4] Univ Nacl La Plata, Dept Fis, RA-1900 La Plata, Buenos Aires, Argentina

[5] Univ Nacl Cordoba, Depto Fisicoquim, INFIQC, RA-5016 Cordoba, Argentina

来源：

FERROELECTRICS | 1996年 / 185卷

关键词：

D O I：

10.1080/00150199608210532

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss the infrared reflectivity of strontium rutenate, SrRuO3 measured from 40 cm(-1) to 10000 cm(-1). The relative high reflectance at low frequencies and the semimetallic behavior at values between 300 cm(-1) and 1900 cm(-1) found in this compound is in accordance with a system with relatively free carriers. Two weak absorptions at about 450 cm(-1) and 800 cm(-1) are assigned to the interaction between electrons and longitudinal phonons. The reflectivity decays rather sharply up to about 3900 cm(-1) and then decreases asymptotically at higher energies. From Kramers-Kronig and multioscillator analyses we obtain the effective carrier number N* = 7.07 10(18) cm(-3), the, effective mobility mu* = 142.6 cm(2) V-1 sec(-1) and the optical conductivity sigma(o) = 175.6 Omega(-1)cm(-1).

引用

页码：277 / 280

页数：4

共 6 条

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