Polarons in the layered perovskite manganite La1.2Sr1.8Mn2O7

被引：33

作者：

Romero, DB

Podobedov, VB ^{[1
]}

Weber, A

Rice, JP

Mitchell, JF

Sharma, RP

Drew, HD

机构：

[1] NIST, Opt Technol Div, Gaithersburg, MD 20899 USA

[2] Univ Maryland, Dept Phys, College Pk, MD 20742 USA

[3] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[4] Russian Acad Sci, Inst Spect, Troitsk 142092, Moscow Region, Russia

来源：

PHYSICAL REVIEW B | 1998年 / 58卷 / 22期

关键词：

D O I：

10.1103/PhysRevB.58.R14737

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The temperature (6-350 K) and magnetic-field dependence (0-7.5 T) of the phononic Raman spectra in the layered manganites, R1.2Sr1.8Mn2O7 (R = La,Nd), reveal anomalous behaviors of the Mn and equatorial O-xy(Big) modes arising from local octahedral distortions and coupling to the Mn3+ e(g) electrons. These results provide the evidence for polaron formation and its interplay with electrical transport and magnetism in the layered manganites.

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页码：14737 / 14740

页数：4

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