Abstract
We observe that the high-temperature δ-phase of Bi2 O 3 is stabilized to room temperature by the epitaxial growth of nanostructures onto either (001)-oriented SrTiO3 or (001)p -oriented DyScO3 single crystal substrates. In addition, the morphology can be controlled by the miscut of the substrate. Synchrotron x-ray scattering observations at controlled temperatures and oxygen partial pressures reveal that the δ -Bi2 O3 nanostructures are coherently strained to the substrates at room temperature. Annealing the nanostructures at 600 °C causes gradual conversion of the (001)-oriented δ -phase to an unidentified strain-relaxed phase.
Original language | English (US) |
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Article number | 021905 |
Journal | Applied Physics Letters |
Volume | 96 |
Issue number | 2 |
DOIs | |
State | Published - 2010 |
Funding
This work was supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, under Contract No. DE-AC02-06CH11357. D.L.P. and T.O.M. also acknowledge support of the U.S. Department of Energy under Contract No. DE-FG02-05ER-46255.
ASJC Scopus subject areas
- Physics and Astronomy (miscellaneous)