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Title: Strong nonlinear current–voltage behaviour in iron oxyborate

Strong nonlinear resistance has been found in the charge ordered ferroelectric iron oxyborate (Fe{sub 2}OBO{sub 3}) with a high dielectric constant and giant converse magnetoelectric effect. In low temperature range the I-V nonlinearity increases quickly with decreasing temperature. Transport measurements on polycrystalline and single crystal Fe{sub 2}OBO{sub 3} indicate that the nonlinearity is not induced by grain boundaries. The nonlinear I-V behavior is intrinsically correlated with the charge order phase melting in Fe{sub 2}OBO{sub 3} by detailed in-situ TEM investigations. These results provide an insight into structure-activity relationship of resistance switching effects at atomic and electric scales, which is essential for its potential application as varistors and storage media.
Authors:
 [1] ; ;  [2] ;  [3] ;  [1] ;  [4]
  1. Department of Physics, Beihang University, Beijing 100191 (China)
  2. School of Mathematics and Physics, University of Science and Technology Beijing, Beijing 100083 (China)
  3. Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190 (China)
  4. (China)
Publication Date:
OSTI Identifier:
22299630
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 4; Journal Issue: 11; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ELECTRIC POTENTIAL; FERROELECTRIC MATERIALS; GRAIN BOUNDARIES; IRON; MAGNETIC PROPERTIES; MONOCRYSTALS; PERMITTIVITY; POLYCRYSTALS; SEMICONDUCTOR RESISTORS; STRUCTURE-ACTIVITY RELATIONSHIPS; TRANSMISSION ELECTRON MICROSCOPY