Journal
PHYSICAL REVIEW B
Volume 83, Issue 5, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.83.054107
Keywords
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Funding
- National Science Foundation (Materials World Network) [DMR-0806592]
- U.S. Department of Energy [DE-FG02-07ER46480]
- National Science Foundation of China [50602047]
- Shanghai Municipal Government [08JC1420500]
- China Scholarship Council
- U.S. Department of Energy (DOE) [DE-FG02-07ER46480] Funding Source: U.S. Department of Energy (DOE)
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [806592] Funding Source: National Science Foundation
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The domain structures of Na1/2Bi1/2TiO3-BaxTiO3 (NBT-x%BT) crystals for x = 0, 4.5, and 5.5 have been investigated by polarized light and piezoresponse force microscopies. The results show that BaTiO3 (i) refines the size of polar nanoregions and enhances their self-organization, and (ii) suppresses the formation of proper ferroelastic domains at high temperatures in the paraelectric state, and it rather favors the formation of improper ones that form below the ferroelectric Curie temperature and that elastically accommodate the ferroelectric ones.
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