Direct visualization of magnetic-field-induced magnetoelectric switching in multiferroic aurivillius phase thin films
File(s)
Accepted version
Author(s)
Type
Journal Article
Abstract
Multiferroic materials displaying coupled ferroelectric and ferromagnetic order parameters could provide a means for data storage whereby bits could be written electrically and read magnetically, or vice versa. Thin films of Aurivillius phase Bi6Ti2.8Fe1.52Mn0.68O18, previously prepared by a chemical solution deposition (CSD) technique, are multiferroics demonstrating magnetoelectric coupling at room temperature. Here, we demonstrate the growth of a similar composition, Bi6Ti2.99Fe1.46Mn0.55O18, via the liquid injection chemical vapor deposition technique. High-resolution magnetic measurements reveal a considerably higher in-plane ferromagnetic signature than CSD grown films (MS=24.25 emu/g (215 emu/cm3), MR=9.916 emu/g (81.5 emu/cm3), HC=170 Oe). A statistical analysis of the results from a thorough microstructural examination of the samples, allows us to conclude that the ferromagnetic signature can be attributed to the Aurivillius phase, with a confidence level of 99.95%. In addition, we report the direct piezoresponse force microscopy visualization of ferroelectric switching while going through a full in-plane magnetic field cycle, where increased volumes (8.6% to 14% compared with 4% to 7% for the CSD-grown films) of the film engage in magnetoelectric coupling and demonstrate both irreversible and reversible magnetoelectric domain switching.
Date Issued
2016-11-02
Date Acceptance
2016-09-13
Citation
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 2016, 100 (3), pp.975-987
ISSN
0002-7820
Publisher
WILEY
Start Page
975
End Page
987
Journal / Book Title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
Volume
100
Issue
3
Copyright Statement
© 2016 The American Ceramic Society. This is the accepted version of the following article: Faraz A, Maity T, Schmidt M. et al. Direct visualization of magnetic-field-induced magnetoelectric switching in multiferroic aurivillius phase thin films. J Am Ceram Soc. 2017;100:975–987, which has been published in final form at https://dx.doi.org/10.1111/jace.14597
Identifier
http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000397503100017&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=1ba7043ffcc86c417c072aa74d649202
Subjects
Science & Technology
Technology
Materials Science, Ceramics
Materials Science
ferroelectricity/ferroelectric materials
ferromagnetism/ferromagnetic materials
magnetoelectrics
multiferroics
thin films
ROOM-TEMPERATURE
EPITAXIAL-FILMS
ELECTROMECHANICS
FERROMAGNETISM
POLARIZATION
ENHANCEMENT
BIFEO3
OXIDES
Materials
0912 Materials Engineering
0913 Mechanical Engineering
Publication Status
Published