Unusual x-ray transport phenomena in La1-xSrxMnO3 -: art. no. 100404

被引：17

作者：

Casa, D

Keimer, B

von Zimmermann, M

Hill, JP

Habermeier, HU

Razavi, FS

机构：

[1] Princeton Univ, Dept Phys, Princeton, NJ 08544 USA

[2] Max Planck Inst Festkorperforsch, D-70569 Stuttgart, Germany

[3] Brookhaven Natl Lab, Dept Phys, Upton, NY 11973 USA

[4] Brock Univ, Dept Phys, St Catharines, ON L2S 3A1, Canada

来源：

PHYSICAL REVIEW B | 2001年 / 64卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.64.100404

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An interesting memory effect occurs when La1-xSrxMnO3 (x similar to 1/8) is repeatedly exposed to x rays. While the "dark" conductivity remains unaffected by the irradiation history, the conductivity is markedly enhanced upon exposure to x rays at low temperatures. Immediately after renewed exposure, it recovers the value attained at the end of the previous exposure. We provide a qualitative explanation of this unusual effect in terms of three distinct states with different orbital correlations.

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页数：4

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