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

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

*Corresponding author for this work

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We present resonant soft x-ray scattering results from small bandwidth manganites (Pr,Ca)MnO 3 , 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.

Original languageEnglish
Article number186404
JournalPhysical Review Letters
Issue number18
StatePublished - 4 May 2011

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