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Ferromagnetic enhancement of CE-type spin ordering in (Pr,Ca)MnO 3

Publication Type

Journal Article

Authors

Zhou, S.Y, Y Zhu, M.C Langner, Y.-D Chuang, P Yu, W.L Yang, A.G Gonzalez, N Tahir, M Rini, Y.-H Chu, Ramamoorthy Ramesh, D.-H Lee, Y Tomioka, Y Tokura, Z Hussain, R.W Schoenlein

DOI

10.1103/PhysRevLett.106.186404

Abstract

We present resonant soft x-ray scattering results from small bandwidth manganites (Pr,Ca)MnO3, which show that the CE-type spin ordering (SO) at the phase boundary is stabilized only below the canted antiferromagnetic transition temperature and enhanced by ferromagnetism in the macroscopically insulating state (FM-I). Our results reveal the fragility of the CE-type ordering that underpins the colossal magnetoresistance effect in this system, as well as an unexpected cooperative interplay between FM-I and CE-type SO which is in contrast to the competitive interplay between the ferromagnetic metallic state and CE-type ordering. © 2011 American Physical Society.

Journal

Physical Review Letters

Volume

106

Year of Publication

2011

ISSN

00319007

Notes

cited By 24

Research Areas

Ramesh Lab