skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ground State Monoclinic (M-b) Phase in (110) BiFeO3 Epitaxial Thin Films

Journal Article · · Applied Physics Letters
DOI:https://doi.org/10.1063/1.2392818· OSTI ID:930603

The lattice structure of (110)-oriented BiFeO{sub 3} epitaxial thin layers has been identified by synchrotron x-ray diffraction. By using (221) and (22{bar 1}) peaks in the (HHL) zone, a ground state monoclinic M{sub b} phase has been observed with lattice parameters of ({beta}; a{sub m}/{radical}2 and c{sub m})=(89.35{sup o}; 3.985 and 3.888 {angstrom}). These results demonstrate a change in phase stability from rhombohedral in bulk single crystals, to monoclinic in epitaxial thin films with two domain states whose polarization is slightly tilted away from [110] towards [111].

Research Organization:
BROOKHAVEN NATIONAL LABORATORY (BNL), NATIONAL SYNCHROTRON LIGHT SOURCE (NSLS)
Sponsoring Organization:
Doe - Office Of Science
DOE Contract Number:
DE-AC02-98CH10886
OSTI ID:
930603
Report Number(s):
BNL-80900-2008-JA; APPLAB; TRN: US0901416
Journal Information:
Applied Physics Letters, Vol. 89, Issue 22; ISSN 0003-6951
Country of Publication:
United States
Language:
English