Journal
ADVANCED MATERIALS
Volume 23, Issue 15, Pages 1744-+Publisher
WILEY-BLACKWELL
DOI: 10.1002/adma.201004673
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Funding
- Japan Society for the Promotion of Science (JSPS)
- Department of Energy, Office of Basic Energy Sciences [DE-AC02-76SF00515]
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Stable and polarity-switchable free charges are written on the surface of a LaAlO(3)/SrTiO(3) heterostructure using conducting atomic force microscopy. These charges reversibly tune the conductance at the LaAlO(3)/SrTiO(3) interface in a non-volatile way. The modulation in carrier density is large, approximate to 3 x 10(13) cm(-2), comparable to the maximum modulation achieved by the normal field effect.
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