Polaron ordering in low-doping La1-xSrxMnO3

被引：319
|
作者：
Yamada, Y [1 ]
Hino, O [1 ]
Nohdo, S [1 ]
Kanao, R [1 ]
Inami, T [1 ]
Katano, S [1 ]
机构：
[1] JAPAN ATOM ENERGY RES INST,ADV SCI RES CTR,TOKAI,IBARAKI 31911,JAPAN
来源：
PHYSICAL REVIEW LETTERS | 1996年 / 77卷 / 05期
关键词：
D O I：
10.1103/PhysRevLett.77.904
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
We have found a polaron ordered phase in low-doping rate La1(-x)Sr(x)MnO(3) (x = 0.10 and 0.15) by neutron scattering study. The onset temperature of the polaron order coincides with the point of resistivity upturn. The periodicity of the hole lattice is commensurate to the structural lattice translation, the unit cell being given by 2a x 2b x 4c in cubic perovskite basis. The nominal hole concentration corresponding to this periodicity is n = 0.125. The polaron lattice seems to have the tendency to lock into this commensurate structure within a finite concentration range around the nominal value of x = 0.125.
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收藏
页码：904 / 907
页数：4
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