File Download

There are no files associated with this item.

  • Find it @ UNIST can give you direct access to the published full text of this article. (UNISTARs only)
Related Researcher

손창희

Sohn, Chang Hee
Laboratory for Unobtainable Functional Oxides
Read More

Views & Downloads

Detailed Information

Cited time in webofscience Cited time in scopus
Metadata Downloads

Optical spectroscopy of the carrier dynamics in LaVO3/SrVO3 superlattices

Author(s)
Jeong, D. W.Choi, Woo SeokKang, T. D.Sohn, C. H.David, A.Rotella, H.Sirenko, A. A.Lee, Cheol HyeokKim, Jae H.Lueders, U.Prellier, W.Kim, Y. -J.Lee, Yun SangNoh, T. W.
Issued Date
2011-09
DOI
10.1103/PhysRevB.84.115132
URI
https://scholarworks.unist.ac.kr/handle/201301/26338
Fulltext
https://journals.aps.org/prb/abstract/10.1103/PhysRevB.84.115132
Citation
PHYSICAL REVIEW B, v.84, no.11, pp.115132
Abstract
We investigated the carrier responses of [(LaVO3)(6n)(SrVO3)(n)] (n = 1, 2, and 4) superlattices using spectroscopic ellipsometry. All the superlattice samples showed an unexpectedly large spectral response in the midinfrared region, which indicated geometrically confined doping near the LaVO3 and SrVO3 interfaces. The intensity of the midinfrared absorption systematically decreased as the superlattice periodicity n increased while the ratio of LaVO3 and SrVO3 layers was kept constant. In addition, we observed that the far-infrared spectral weight of the n = 1 superlattice was reduced by up to 30% with decreasing temperature, while the spectral weights of the n = 2 and n = 4 superlattices were almost temperature independent. This behavior was attributed to the carrier localization effects near the interfaces between LaVO3 and SrVO3.
Publisher
AMER PHYSICAL SOC
ISSN
1098-0121
Keyword
TRANSITIONSINTERFACEINSULATOROXIDES

qrcode

Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.