Growth of nanoscale BaTiO3/SMO3 superlattices by molecular-beam epitaxy. Soukiassian, A., Tian, W., Vaithyanathan, V., Haeni, J. H., Chen, L. Q., Xi, X. X., Schlom, D. G., Tenne, D. A., Sun, H. P., Pan, X. Q., Choi, K. J., Eom, C. B., Li, Y. L., Jia, Q. X., Constantin, C., Feenstra, R. M., Bernhagen, M., Reiche, P., & Uecker, R. JOURNAL OF MATERIALS RESEARCH, 23(5):1417-1432, MAY, 2008.
doi  abstract   bibtex   
Commensurate BaTiO3/SrTiO3 superlattices were grown by reactive molecular-beam epitaxy on four different substrates: TiO2-terminated (001) SrTiO3, (101) DyScO3, (101) GdSCO3, and (101) SMScO3. With the aid of reflection high-energy electron diffraction (RHEED), precise single-monolayer doses of BaO, SrO, and TiO2 Were deposited sequentially to create commensurate BaTiO3/SrTiO3 superlattices with a variety of periodicities. X-ray diffraction (XRD) measurements exhibit clear superlattice peaks at the expected positions. The rocking curve full width half-maximum of the superlattices was as narrow as 7 are s (0.002 degrees). High-resolution transmission electron microscopy reveals nearly atomically abrupt interfaces. Temperature-dependent ultraviolet Raman and XRD, were used to reveal the paraelectric-to-ferroelectric. transition temperature (T-C). Our results demonstrate the importance of finite size and strain effects on the T-C of BaTiO3/SrTiO3 superlattices. In addition to probing finite size and strain effects, these hetero structures may be relevant for novel phonon devices, including mirrors, filters, and cavities for coherent phonon generation and control.
@article{ ISI:000255543800030,
Author = {Soukiassian, A. and Tian, W. and Vaithyanathan, V. and Haeni, J. H. and
   Chen, L. Q. and Xi, X. X. and Schlom, D. G. and Tenne, D. A. and Sun, H.
   P. and Pan, X. Q. and Choi, K. J. and Eom, C. B. and Li, Y. L. and Jia,
   Q. X. and Constantin, C. and Feenstra, R. M. and Bernhagen, M. and
   Reiche, P. and Uecker, R.},
Title = {{Growth of nanoscale BaTiO3/SMO3 superlattices by molecular-beam epitaxy}},
Journal = {{JOURNAL OF MATERIALS RESEARCH}},
Year = {{2008}},
Volume = {{23}},
Number = {{5}},
Pages = {{1417-1432}},
Month = {{MAY}},
Abstract = {{Commensurate BaTiO3/SrTiO3 superlattices were grown by reactive
   molecular-beam epitaxy on four different substrates: TiO2-terminated
   (001) SrTiO3, (101) DyScO3, (101) GdSCO3, and (101) SMScO3. With the aid
   of reflection high-energy electron diffraction (RHEED), precise
   single-monolayer doses of BaO, SrO, and TiO2 Were deposited sequentially
   to create commensurate BaTiO3/SrTiO3 superlattices with a variety of
   periodicities. X-ray diffraction (XRD) measurements exhibit clear
   superlattice peaks at the expected positions. The rocking curve full
   width half-maximum of the superlattices was as narrow as 7 are s (0.002
   degrees). High-resolution transmission electron microscopy reveals
   nearly atomically abrupt interfaces. Temperature-dependent ultraviolet
   Raman and XRD, were used to reveal the paraelectric-to-ferroelectric.
   transition temperature (T-C). Our results demonstrate the importance of
   finite size and strain effects on the T-C of BaTiO3/SrTiO3
   superlattices. In addition to probing finite size and strain effects,
   these hetero structures may be relevant for novel phonon devices,
   including mirrors, filters, and cavities for coherent phonon generation
   and control.}},
DOI = {{10.1557/JMR.2008.0181}},
ISSN = {{0884-2914}},
ResearcherID-Numbers = {{Choi, Kyoung Jin/D-6941-2013
   Eom, Chang-Beom/I-5567-2014
   Chen, LongQing/I-7536-2012
   Tenne, Dmitri/C-3294-2009
   Schlom, Darrell/J-2412-2013
   Jia, Q. X./C-5194-2008
   Choi, Kyoung Jin/N-4662-2013
   Feenstra, Randall/P-2530-2014
   Li, Yulan/F-8929-2018}},
ORCID-Numbers = {{Chen, LongQing/0000-0003-3359-3781
   Tenne, Dmitri/0000-0003-2697-8958
   Schlom, Darrell/0000-0003-2493-6113
   Feenstra, Randall/0000-0001-7120-5685
   Li, Yulan/0000-0002-2431-5408}},
Unique-ID = {{ISI:000255543800030}},
}

Downloads: 0