Piezoelectric and piezomagnetic force microscopies of multiferroic BiFeO3-LiMn2O4 heterostructures

Ahmad Eshghinejad, Wen I. Liang, Qian Nataly Chen, Feiyue Ma, Yuanming Liu, Shuhong Xie, Ying-hao Chu, Jiangyu Li*

*Corresponding author for this work

Research output: Contribution to journalArticle

5 Scopus citations

Abstract

BiFeO3-LiMn2O4 (BFO-LMO) heterostructures were fabricated via pulsed laser deposition, and their ferroelectric and ferromagnetic properties were probed by magnetic force microscopy (MFM), piezoresponse force microscopy (PFM), and the newly developed piezomagnetic force microscopy (PmFM). MFM imaging shows no clear distinction between BFO and LMO phases, while PFM and PmFM mappings clearly distinguish LMO nanopillars from BFO matrix. Linear piezoelectric and piezomagnetic responses have been observed in both phases, with the effects more prominent in BFO. The strong piezomagnetic response in BFO is believed to arise from Mn doping, while piezoelectric-like response of LMO is attributed to ionic activities as well as vertical geometry of the heterostructure. The limitation of global excitation of PmFM is also discussed.

Original languageEnglish
Article number066805
JournalJournal of Applied Physics
Volume116
Issue number6
DOIs
StatePublished - 14 Aug 2014

Fingerprint Dive into the research topics of 'Piezoelectric and piezomagnetic force microscopies of multiferroic BiFeO<sub>3</sub>-LiMn<sub>2</sub>O<sub>4</sub> heterostructures'. Together they form a unique fingerprint.

  • Cite this