Enhancement of the magnetoelectric effect in doped BaTiO      3     nanoparticles | Zendy

Apostolov A. T. | Zendy; Apostolova I. N. | Zendy; Bahoosh S. G. | Zendy; Trimper S. | Zendy; Wesselinowa J. M. | Zendy

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Enhancement of the magnetoelectric effect in doped BaTiO 3 nanoparticles

Author(s) -

Apostolov A. T.,

Apostolova I. N.,

Bahoosh S. G.,

Trimper S.,

Wesselinowa J. M.

Publication year - 2015

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.201451752

Subject(s) - ferroelectricity , doping , materials science , dopant , ferromagnetism , nanoparticle , magnetization , condensed matter physics , polarization (electrochemistry) , ion , phase transition , nanotechnology , magnetic field , optoelectronics , dielectric , chemistry , physics , organic chemistry , quantum mechanics

Experimentally the polarization P and the magnetization M of BaTiO3 (BTO) nanoparticles are altered under doping with transition metals as Fe‐ions. Using a modified spin model for the magnetic and the ferroelectric part as well as the magnetoelectric coupling we have calculated the dependence of M and P on the Fe‐doping content in BTO nanoparticles. The ferroelectric and ferromagnetic phase transition temperatures, T c fe and T c fm , are likewise shifted due to doping. Owing to surface effects the influence of doping could be stronger compared to the bulk behavior. Whereas M and T c fm increase with increasing Fe‐ion concentration, P and T c fe decrease if the dopant concentration is enhanced.

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