Strong nonlinear current–voltage behaviour in iron oxyborate
Author(s) -
Yuanjun Song,
Yingying Xu,
Yujun Song,
Jianqi Li,
Rongming Wang
Publication year - 2014
Publication title -
aip advances
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.421
H-Index - 58
ISSN - 2158-3226
DOI - 10.1063/1.4901177
Subject(s) - materials science , crystallite , nonlinear system , condensed matter physics , dielectric , varistor , ferroelectricity , grain boundary , voltage , phase (matter) , electrical resistivity and conductivity , composite material , optoelectronics , chemistry , microstructure , electrical engineering , metallurgy , physics , quantum mechanics , engineering , organic chemistry
Strong nonlinear resistance has been found in the charge ordered ferroelectric iron oxyborate (Fe2OBO3) 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 Fe2OBO3 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 Fe2OBO3 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
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom