Comment on "Epitaxial BiFeO3 multiferroic thin film heterostructures"

Eerenstein, W. and Morrison, F. D. and J, Dho and Blamire, M. G. and Scott, J. F. and Mathur, N. D. (2005) Comment on "Epitaxial BiFeO3 multiferroic thin film heterostructures". Science, 307 (5713). p. 1203. DOI

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Wang et al recently reported multiferroic behavior, with ferromagnetic and ferroelectric polarizations that are both large at room temperature, in thin strained films of BiFeO3 (BFO). Although at room temperature, bulk BFO is ferroelectric and anti-ferromagnetic , Wang et al. reported that a 70-nm film shows both an enhanced ferroelectric polarization (90 μC cm–2) and a substantial magnetization (1 μB/Fe). This remains the only report of a robust room-temperature multiferroic and suggests the potential for novel devices that exploit the anticipated strain-mediated magnetoelectric coupling between the two ordered ground states. In this Comment, we argue that epitaxial strain does not enhance the magnetization and polarization in BiFeO3

Item Type: Article
Uncontrolled Keywords: 2005 AREP 2005 P IA48
Subjects: 03 - Mineral Sciences
Divisions: 03 - Mineral Sciences
Journal or Publication Title: Science
Volume: 307
Page Range: p. 1203
Identification Number:
Depositing User: Sarah Humbert
Date Deposited: 27 May 2011 15:06
Last Modified: 23 Jul 2013 09:58

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