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Advanced Materials

Nanoscale Domain Control in Multiferroic BiFeO3 Thin Films


  • The authors acknowledge support of the National Center for Electron Microscopy, Lawrence Berkeley Lab, which is supported by the U.S. Department of Energy under Contract # DE-AC02-05CH11231. This work is supported by an Office of Naval Research ONR grant no. N00014-06-1-0008 and an ONR-MURI grant no. E-21-6RU-G4. Partial support from a LBL LDRD and a MARCO program, National Science Foundation NSF DMR0122638, NSF DMR-0507146, and a Guggenheim Fellowship is also gratefully acknowledged.


A 1D periodic structure of ferroelectric domains in epitaxial BiFeO3 films is created. By careful control of the growth mechanism for the SrRuO3 bottom electrode, its in-plane lattice parameters are confined by the underlying DyScO3 (110)O single- crystal substrate, enabling the formation of an expitaxial film of (110)O SrRuO3 with a single structural domain (see figure).

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