Probability of double exchange between Mn and Fe in LaMn1-xFexO3 -: art. no. 014422

被引：91

作者：

Tong, W ^{[1
]}

Zhang, B ^{[1
]}

Tan, S ^{[1
]}

Zhang, YH ^{[1
]}

机构：

[1] Univ Sci & Technol China, Struct Res Lab, Hefei 230026, Peoples R China

来源：

PHYSICAL REVIEW B | 2004年 / 70卷 / 01期

关键词：

D O I：

10.1103/PhysRevB.70.014422

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The magnetism and transport properties of heavily doped perovskite LaMn1-xFexO3 (0.00less than or equal toxless than or equal to0.40) were studied. For the doped samples, there is a paramagnetic-ferromagnetic (PM-FM) transition both under zero field cooling and 0.01 Tesla field cooling condition but there is no insulator-metal transition. The curves are fitted well by the thermal activation model. The Mossbauer spectra of heavily doped samples demonstrate that the doped Fe ions are trivalent. In electron spin resonance spectra, many individual ferromagnetic resonance lines occur besides the normal paramagnetic resonance lines at T>T-C and then submerge in PM or FM lines at low temperature. We suggest that there is the probability of double exchange interaction between Fe3+ ions and Mn3+ ions in LaMn1-xFexO3.

引用

页码：014422 / 1

页数：6

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