Probing multiferroic heterostructures of BiFeO3 -LiMn2O4 using magnetic, piezoelectric and piezomagnetic force microscopies

Ahmadreza Eshghinejad, Wen I. Liang, Qian Nataly Chen, Feiyue Ma, Ying-hao Chu, Jiangyu Li

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

In this study magnetic force microscopy (MFM), piezoresponse force microscopy (PFM), and the newly developed piezomagnetic force microscopy (PmFM) techniques are used to probe the ferroelectric and ferromagnetic properties of BiFeO3-LiMn2 O4 (BFO-LMO) heterostructures at nano-scale. The PmFM technique is also used to probe the ferromagnetic properties of CoFe2 O4 (CFO) as a case study. The PFM and PmFM mappings of the BFO-LMO heterostructures clearly distinguish the BFO matrix and LMO nanopillars while the MFM mapping is ambiguous. The relatively high piezomagnetic response of BFO matrix is believed to be due to the Mn doping while the piezoelectric-like response of LMO nanopillars is due to the ionic activities and the vertical geometry of its heterostructure. Lastly, limitations of the PmFM technique are discussed.

Original languageEnglish
Title of host publicationASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014
PublisherWeb Portal ASME (American Society of Mechanical Engineers)
ISBN (Electronic)9780791846148
DOIs
StatePublished - Sep 2014
EventASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014 - Newport, United States
Duration: 8 Sep 201410 Sep 2014

Publication series

NameASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014
Volume1

Conference

ConferenceASME 2014 Conference on Smart Materials, Adaptive Structures and Intelligent Systems, SMASIS 2014
CountryUnited States
CityNewport
Period8/09/1410/09/14

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