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Title: Resonant photoemission study of multiferroic LuFe{sub 2}O{sub 4} across three-dimensional to two-dimensional charge ordering

Electronic structures modification of polycrystalline LuFe{sub 2}O{sub 4} across 3 dimensional to 2 dimensional charge ordering (CO) has been studied by resonance photoemission spectroscopy. Constant-initial-state spectra measured across 3pā€‰ā†’ā€‰3d resonance energy indicate its charge transfer insulating behavior. Valance band spectra study shows states lying closer to the Fermi level are due to Fe{sup 2+} ions. As the temperature is varied from 3D to 2D CO state, a weight transfer of DOS from low binding energy to higher binding energy is observed which is attributed to the modification in the Fe-O hybridized states.
Authors:
; ;  [1]
  1. UGC-DAE Consortium for Scientific Research, Indore 452001 (India)
Publication Date:
OSTI Identifier:
22398970
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 106; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; BINDING ENERGY; CARBON MONOXIDE; ELECTRONIC STRUCTURE; EMISSION SPECTRA; EMISSION SPECTROSCOPY; FERMI LEVEL; IRON IONS; MODIFICATIONS; PHOTOELECTRON SPECTROSCOPY; PHOTOEMISSION; POLYCRYSTALS; THREE-DIMENSIONAL LATTICES; TWO-DIMENSIONAL SYSTEMS