X-ray-induced structural transition in La0.875Sr0.125MnO3

被引：43
|
作者：
Kiryukhin, V [1 ]
Wang, YJ [1 ]
Chou, FC [1 ]
Kastner, MA [1 ]
Birgeneau, RJ [1 ]
机构：
[1] MIT, Dept Phys, Cambridge, MA 02139 USA
来源：
PHYSICAL REVIEW B | 1999年 / 59卷 / 10期
关键词：
D O I：
10.1103/PhysRevB.59.R6581
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We report a synchrotron x-ray-scattering study of the magnetoresistive manganite La0.875Sr0.125MnO3. At low temperatures, this material undergoes an x-ray-induced structural transition at which charge ordering of Mn3+ and Mn4+ ions characteristic to the low-temperature stare of this compound is destroyed. The transition is persistent but the charge-ordered state can be restored by heating above the charge-ordering transition temperature and subsequently cooling. The charge-ordering diffraction peaks, which are broadened at all temperatures, broaden more upon x-ray irradiation, indicating the finite correlation length of the charge-ordered state. Together with the recent reports on x-ray-induced transitions in Pr1-xCaxMnO3, our results demonstrate that the photoinduced structural change is a common property of the charge-ordered perovskite manganites. [S0163-1829(99)51110-7].
引用
收藏
页码：R6581 / R6584
页数：4
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