Journal
PHYSICAL REVIEW B
Volume 82, Issue 1, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.82.014304
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Funding
- Division of Materials Science and Engineering, Basic Energy Sciences, U.S. Department of Energy (UT and ORNL)
- State of Texas through the Texas Center for Superconductivity (UH)
- Initiative and Networking Fund of the Helmholtz Association of German Research Centers through the Helmholtz-University
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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.
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