Conductivity enhancement of ultrathin LaNiO3 films in superlattices
SCIE
SCOPUS
- Title
- Conductivity enhancement of ultrathin LaNiO3 films in superlattices
- Authors
- Son, J; LeBeau, JM; Allen, SJ; Stemmer, S
- Date Issued
- 2010-11-15
- Publisher
- American Institute of Physics
- Abstract
- The resistance of superlattices composed of bilayers of ultrathin (similar to 4 unit cells) of LaNiO3 and similar to 3 unit cells of insulating SrTiO3 is explored as a function of temperature and the number of bilayers. All superlattices with more than one bilayer are metallic, whereas a single bilayer is insulating. Two possible interpretations of the electrical characteristics of the superlattices are discussed. The first model involves conduction in parallel-connected layers, whereas the second model assumes coupling of layers, each of which is near the percolation threshold for a metal-insulator transition. (C) 2010 American Institute of Physics. [doi:10.1063/1.3511738]
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/9693
- DOI
- 10.1063/1.3511738
- ISSN
- 0003-6951
- Article Type
- Article
- Citation
- Applied Physics Letters, vol. 97, no. 20, 2010-11-15
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