標題: Ferromagnetic Enhancement of CE-Type Spin Ordering in (Pr, Ca)MnO3
作者: Zhou, S. Y.
Zhu, Y.
Langner, M. C.
Chuang, Y. -D.
Yu, P.
Yang, W. L.
Gonzalez, A. G. Cruz
Tahir, N.
Rini, M.
Chu, Y. -H.
Ramesh, R.
Lee, D. -H.
Tomioka, Y.
Tokura, Y.
Hussain, Z.
Schoenlein, R. W.
材料科學與工程學系
Department of Materials Science and Engineering
公開日期: 4-May-2011
摘要: 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.
URI: http://dx.doi.org/10.1103/PhysRevLett.106.186404
http://hdl.handle.net/11536/150299
ISSN: 0031-9007
DOI: 10.1103/PhysRevLett.106.186404
期刊: PHYSICAL REVIEW LETTERS
Volume: 106
Issue: 18
起始頁: 0
結束頁: 0
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