The multiferroic properties of polycrystalline Bi1-xYxFeO3 films
The multiferroic properties of polycrystalline Bi1-xYxFeO3 films
Sheng, Y.; Rui, W.; Qiu, X.; Du, J.; Zhou, S.; Xu, Q.
Polycrystalline Bi1−xYxFeO3 films with varying x from 0 to 0.30 were prepared by pulsed laser deposition (PLD) on surface oxidized Si (100) substrates with LaNiO3 as buffer layer. The influence of Y doping on the structure, ferroelectric properties and exchange bias have been systematically investigated. X-ray diffraction and Raman spectroscopy studies revealed the structural transition from rhombohedral R3c to orthorhombic Pn21a with increasing x above 0.10. The leakage current density of BiFeO3 has been effectively suppressed by Y doping, and well saturated P-E loops have been observed in Bi1-xYxFeO3 (0.01≤x≤0.07). Exchange bias field with a 3.6 nm thick NiFe layer increases with increasing x to 0.01, then decreases with further increasing x.
Keywords: multiferroics; BiFeO3; exchange bias; ferroelectricity
Involved research facilities
- Ion Beam Center DOI: 10.17815/jlsrf-3-159
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- DOI: 10.17815/jlsrf-3-159 is cited by this (Id 19872) publication
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Journal of Applied Physics 115(2014), 17D902
DOI: 10.1063/1.4863261
Cited 14 times in Scopus
Permalink: https://www.hzdr.de/publications/Publ-19872