The room temperature crystal structure of the perovskite Pr0.5Sr0.5MnO3

被引：41
|
作者：
Argyriou, DN
Hinks, DG
Mitchell, JF
Potter, CD
Schultz, AJ
Young, DM
Jorgensen, JD
Bader, SD
机构：
[1] ARGONNE NATL LAB,SCI & TECHNOL CTR SUPERCONDUCTIV,ARGONNE,IL 60439
[2] ARGONNE NATL LAB,INTENSE PULSED NEUTRON SOURCE,ARGONNE,IL 60439
来源：
JOURNAL OF SOLID STATE CHEMISTRY | 1996年 / 124卷 / 02期
关键词：
D O I：
10.1006/jssc.1996.0253
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
Using both powder and single crystal neutron diffraction we have determined the room temperature structure of Pr0.5Sr0.5MnO3 from melt-grown crystalline material. Contrary to previous measurements on polycrystalline samples we find the room temperature structure of Pr0.5Sr0.5MnO3 is tetragonal, space group F4/mmc (a = 7.64093(5) Angstrom, c = 7.79104(8) Angstrom), The structure of Pr0.5Sr0.5MnO3 is related to the ideal primitive cubic perovskite structure by a single correlated rotation of MnO6 octahedra about the c axis. We find that MnO6 octahedra exhibit a small Jahn-Teller distortion (Delta(Mn-O) approximate to 0.02 Angstrom). (C) 1996 Academic Press, Inc.
引用
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页码：381 / 384
页数：4
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