Journal
PHYSICAL REVIEW B
Volume 87, Issue 12, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.87.125110
Keywords
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Funding
- German Israeli Foundation [979/2007]
- Israel Science Foundation
- Israel Academy of Sciences and Humanities [577/07]
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Patterned structures of LaAlO3/SrTiO3 that exhibit a decrease in their electrical conductivity below 30 K recover their higher conductivity upon warming in a thermally activated process. Two dominant energy barriers E-b are identified: E-b1 = 0.224 +/- 0.003 eV related to conductivity recovery near 70 K and E-b2 = 0.44 +/- 0.015 eV related to conductivity recovery near 160 K. We discuss possible linkage to structural defects such as dislocations and twin boundaries. DOI: 10.1103/PhysRevB.87.125110
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