Chapter

Synthesis of epitaxial multiferroic oxide thin films

Thomas Tybell and Chang-Beom Eom

in Multifunctional Oxide Heterostructures

Published in print August 2012 | ISBN: 9780199584123
Published online January 2013 | e-ISBN: 9780191745331 | DOI: http://dx.doi.org/10.1093/acprof:oso/9780199584123.003.0003
Synthesis of epitaxial multiferroic oxide thin films

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This chapter discusses the synthesis of epitaxial multiferroic oxide thin films based on the possibilities offered by substrate engineering. Multiferroic oxides exhibit strong structure-property coupling, making them susceptible to epitaxy as pathway to device both the microscopic and macroscopic structure, and hence properties. The substrate is thus a fundamental starting point that enables control of crystalline structure, including distortions, orientation, and structural domains. The role of the substrate is examined, and a short overview of available substrates including possible surface terminations is given. Examples are chosen in order to convey how substrate surface termination, crystallographic orientation, and strain can be used to tailor functional properties. The use of vicinal surfaces is also carefully assessed. SrRuO3 and BiFeO3 are used as model systems to convey that a combination of strain engineering and vicinal substrates opens for epitaxial multiferroic oxide thin films with engineered properties.

Keywords: epitaxy; substrate; strain; vicinal surfaces; domains; SrRuO3; BiFeO3

Chapter.  8606 words.  Illustrated.

Subjects: Condensed Matter Physics

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