期刊
ADVANCED MATERIALS
卷 25, 期 17, 页码 2497-2504出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201204584
关键词
transition metal oxides; multiferroics; BiFeO3; scanning transmission electron microscopy; piezoresponse force microscopy
类别
资金
- U.S. Department of Energy (DOE), Basic Energy Sciences (BES), Materials Sciences and Engineering Division
- ORNL's Shared Research Equipment (ShaRE) User Program
- DOE-BES
- Office of Science, Office of Basic Energy Sciences, of the U.S. Department of Energy [DEAC02-05CH11231]
- U.S. Office of Naval Research [N00014-11-1-0664]
- National Research Council of Science & Technology (NST), Republic of Korea [T33210] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Heterointerface stabilization of a distinct nonpolar BiFeO3 phase occurs simultaneously with changes in octahedral tilts. The resulting phase arises via suppression of polarization by a structural order parameter and can thus be identified as anti-ferroelectric (Fe displacements - bottom panel). The phase is metastable and can be switched into a polar ferroelectric state (top panel) under an applied electric bias.
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