Room temperature multiferroic heterostructure: Nd: BiFeO3/YMnO3



Publication Details

Zhao, H., Kimura, H., Cheng, Z., Wang, X., Yao, Q., Osada, M. & Li, B. (2013). Room temperature multiferroic heterostructure: Nd: BiFeO3/YMnO3. Journal Of Crystal Growth, 365 (February), 19-23.


In order to search candidate multiferroics, a heterostructure of Nd:BiFeO3/YMnO3 (BFO/YMO) was designed. It was fabricated using a pulsed laser deposition (PLD) method on (111) Nb: SrTiO3 substrate through layer-by-layer growth. The particularly interesting phases for Nd:BiFeO3 (P4mm) and YMnO3 (hexagonal and orthorhombic) were observed. This film has a high ferromagnetic Curie temperature at 420 K. The ferroelectric domain switching was observed and it exhibited large electromechanical coupling with maximum d(33)similar to 73 pm/V at 10 V.

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