Abstract
Highly orientated Mn-doped BaTiO3 thin films have been prepared on Nb-doped SrTiO3 substrate by pulsed laser deposition. Structural and electrical studies indicate that pure and Mn-doped BaTiO3 thin films show single phase character and good ferroelectric performance. All of the Mn-doped BaTiO3 thin films show obvious room-temperature ferromagnetism and the magnetization increases with the growing concentration of doped Mn. A bound magnetic polaron model was proposed to understand the observed ferromagnetic behavior of resistive Mn-doped BaTiO3 thin films. Our results demonstrate that ferromagnetism can be induced in the ferroelectric BaTiO3 film, which makes it a promising single-phase multiferroic.
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