Magnetic field effect on the dielectric properties of rare earth doped multiferroic BiFeO3

•The dielectric properties of La doped BiFeO3 are theoretically studied.•A kink in the dielectric function (DF) is observed near the Neel temperature TN.•TN and the ferroelectric transition temperature TC decrease with increasing La concentration x.•The DF shows a maximum at x = 0.15.•For small magn...

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Veröffentlicht in:	Journal of magnetism and magnetic materials 2020-11, Vol.513, p.167101, Article 167101
Hauptverfasser:	Apostolov, A.T., Apostolova, I.N., Wesselinowa, J.M.
Format:	Artikel
Sprache:	eng
Schlagworte:	Antiferromagnetism Barium titanates Bismuth compounds Critical field (superconductivity) Dielectric function Dielectric properties Dielectric strength Doping Ferroelectricity Green's functions Green’s function technique Lanthanum Magnetic field effects Magnetic fields Magnetic properties Microscopic model Neel temperature Permittivity Rare earth doped barium titanate Temperature Temperature dependence Transition temperature
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