%0 Journal Article
%A Xu, X.S.
%A de Groot, J.
%A Sun, Q.-C.
%A Sales, B.C.
%A Mandrus, D.
%A Angst, M.
%A Litvinchuk, A.P.
%A Musfeldt, J.L.
%T Lattice dynamical probe of charge order and antipolar bilayer stacking in LuFe2O4
%J Physical review / B
%V 82
%@ 1098-0121
%C College Park, Md.
%I APS
%M PreJuSER-11618
%P 014304
%D 2010
%Z This work was supported by the Division of Materials Science and Engineering, Basic Energy Sciences, U.S. Department of Energy (UT and ORNL), the State of Texas through the Texas Center for Superconductivity (UH), and the Initiative and Networking Fund of the Helmholtz Association of German Research Centers through the Helmholtz-University Young Investigator Group Complex Ordering Phenomena in Multifunctional Oxides (Julich).
%X We investigated the infrared response of LuFe2O4 through the series of charge, magnetic, and structural transitions. All vibrational modes couple strongly to the charge order, whereas the LuO zone-folding modes are also sensitive to magnetic order and structural distortion. The dramatic splitting of the LuO2 layer mode is attributed to charge-rich/poor proximity effects and its temperature dependence reveals the antipolar nature of the W layer pattern.
%K J (WoSType)
%F PUB:(DE-HGF)16
%9 Journal Article
%U <Go to ISI:>//WOS:000280366100002
%R 10.1103/PhysRevB.82.14304
%U https://juser.fz-juelich.de/record/11618