@article{fa9fab5ae8614271abfc555b2ca724ac,
title = "Epitaxial BiFeO3 multiferroic thin film heterostructures",
abstract = "Enhancement of polarization and related properties in heteroepitaxially constrained thin films of the ferroelectromagnet, BiFeO3, is reported. Structure analysis indicates that the crystal structure of film is monoclinic in contrast to bulk, which is rhombohedral. The films display a room-temperature spontaneous polarization (50 to 60 microcoulombs per square centimeter) almost an order of magnitude higher than that of the bulk (6.1 microcoulombs per square centimeter). The observed enhancement is corroborated by first-principles calculations and found to originate from a high sensitivity of the polarization to small changes in lattice parameters. The films also exhibit enhanced thickness-dependent magnetism compared with the bulk. These enhanced and combined functional responses in thin film form present an opportunity to create and implement thin film devices that actively couple the magnetic and ferroelectric order parameters.",
author = "J. Wang and Neaton, {J. B.} and H. Zheng and V. Nagarajan and Ogale, {S. B.} and B. Liu and D. Viehland and V. Vaithyanathan and Schlom, {D. G.} and Waghmare, {U. V.} and Spaldin, {N. A.} and Rabe, {K. M.} and M. Wuttig and R. Ramesh",
note = "Funding Information: We thank our colleagues Drs Lanska, Kamberska, Jechova, Ales and Benes for help with statistical data and demography, Drs Bartunkova and Provaznik for immunologist's and epidemiologist's remarks and P Hanusova and J Ridoskova for technical help. Supported by a grant No. 6406–3 from the Czech Ministry of Health and by the Czech Ministry of Education Programs No. 111300001 and No. 111300003; partly supported by the Terry Fox Run. This study was presented at the Annual meeting of the American Society of Hematology in San Francisco, USA, 2000. Funding Information: We thank our colleagues Drs Lanska, Kamberska, Jechova, Ales and Benes for help with statistical data and demography, Drs Bartunkova and Provaznik for immunologist's and epidemiologist's remarks and P Hanusova and J Ridoskova for technical help. Supported by a grant No.?6406?3 from the Czech Ministry of Health and by the Czech Ministry of Education Programs No.?111300001 and No.?111300003; partly supported by the Terry Fox Run. This study was presented at the Annual meeting of the American Society of Hematology in San Francisco, USA, 2000.",
year = "2003",
month = mar,
day = "14",
doi = "10.1126/science.1080615",
language = "English (US)",
volume = "299",
pages = "1719--1722",
journal = "Science",
issn = "0036-8075",
publisher = "American Association for the Advancement of Science",
number = "5613",
}