The effect of oxygen on the Jahn-Teller distortion and magnetization dynamics of Pr0.9Ca0.1MnO3 thin films

被引：10

作者：

Majumdar, S. ^{[1
]}

Huhtinen, H. ^{[1
]}

Paturi, P. ^{[1
]}

Palai, R. ^{[2
,3
]}

机构：

[1] Univ Turku, Wihuri Phys Lab, Dept Phys & Astron, FI-20014 Turku, Finland

[2] Univ Puerto Rico, Dept Phys, San Juan, PR 00931 USA

[3] Univ Puerto Rico, Inst Funct Nanomat, San Juan, PR 00931 USA

来源：

JOURNAL OF PHYSICS-CONDENSED MATTER | 2013年 / 25卷 / 06期

基金：

芬兰科学院;

关键词：

AC SUSCEPTIBILITY; TRANSITION;

D O I：

10.1088/0953-8984/25/6/066005

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

We report on the effect of oxygen on the Jahn-Teller distortion and dynamic magnetic properties of low hole-doped Pr0.9Ca0.1MnO3 thin films, using micro-Raman spectroscopy and the temperature dependent ac susceptibility, as a function of the frequency, dc field bias, and thermal cycles. The as-grown and vacuum annealed thin films show a high amount of magnetic frustration and inferior ferromagnetic ordering compared with the oxygen annealed thin films. It has been found that the amount of magnetic frustration in the film is interlinked with the Jahn-Teller distortion and domain wall dynamics. An attempt has been made to understand the origin and nature of the magnetic frustration.

引用

页数：9

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