Optical properties of a Nd0.7Sr0.3MnO3 single crystal

被引：77

作者：

Lee, HJ ^{[1
]}

Jung, JH

Lee, YS

Ahn, JS

Noh, TW

Kim, KH

Cheong, SW

机构：

[1] Seoul Natl Univ, Dept Phys, Seoul 151742, South Korea

[2] Seoul Natl Univ, Condensed Matter Res Inst, Seoul 151742, South Korea

[3] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08855 USA

[4] AT&T Bell Labs, Lucent Technol, Murray Hill, NJ 07974 USA

来源：

PHYSICAL REVIEW B | 1999年 / 60卷 / 08期

关键词：

D O I：

10.1103/PhysRevB.60.5251

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We investigated temperature-dependent optical conductivity spectra of a Nd0.7Sr0.3MnO3 single crystal. We found that polishing and surface scattering effects on the Nd0.7Sr0.3MnO3 crystal surfaces could significantly distort the optical responses, especially in the mid-infrared region. However, oxygen annealing and gold normalization processes seemed to remedy the distortions. We found that the spectral weight of Nd0.7Sr0.3MnO3 in the metallic state might be composed of a Drude carrier term and a strong incoherent mid-infrared absorptions. The temperature dependence of the spectral weight suggests that the electron-lattice coupling should be important in optical properties of colossal magnetoresistance manganites. [S0163-1829(99)03432-3].

引用

页码：5251 / 5257

页数：7

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