Journal
ADVANCED MATERIALS
Volume 23, Issue 30, Pages 3403-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201100805
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Funding
- U.S. National Science Foundation [NSF-DMR-1104484]
- U.S. Department of Energy [DE-AC36-08GO28308]
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [0804109] Funding Source: National Science Foundation
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Directions of rectification and photocurrent in a ferroelectric BiFeO3 crystal can be switched by applying high-voltage pulses at room temperature. The switching is highly repeatable though cycling and also stable with time. This switchable photocurrent and diode effect results from the combination of polarization flipping and electromigration of oxygen vacancies.
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