Transport properties of LaTiO3 / SrTiO3 heterostructures

R. Ohtsuka; M. Matvejeff; K. Nishio; R. Takahashi; M. Lippmaa

doi:10.1063/1.3430006

Transport properties of LaTiO₃ / SrTiO₃ heterostructures

R. Ohtsuka, M. Matvejeff, K. Nishio, R. Takahashi, M. Lippmaa

Research output: Contribution to journal › Article › peer-review

39 Citations (Scopus)

Abstract

Resistivity measurements show that SrTiO₃ / LaTiO₃ / SrTiO₃ heterostructures remain metallic even for single unit cell LaTiO₃ layers. Hall resistances of all heterostructures are nonlinear functions of the applied field. The Hall data is analyzed in terms of a two-layer model, indicating that a low-mobility layer exists at the LaTiO ₃ / SrTi₃ interface, while carriers with mobilities approaching 10 000 cm² /V s are present deep in the SrTiO₃ substrate.

Original language	English
Article number	192111
Journal	Applied Physics Letters
Volume	96
Issue number	19
DOIs	https://doi.org/10.1063/1.3430006
Publication status	Published - 2010

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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title = "Transport properties of LaTiO3 / SrTiO3 heterostructures",

abstract = "Resistivity measurements show that SrTiO3 / LaTiO3 / SrTiO3 heterostructures remain metallic even for single unit cell LaTiO3 layers. Hall resistances of all heterostructures are nonlinear functions of the applied field. The Hall data is analyzed in terms of a two-layer model, indicating that a low-mobility layer exists at the LaTiO 3 / SrTi3 interface, while carriers with mobilities approaching 10 000 cm2 /V s are present deep in the SrTiO3 substrate.",

author = "R. Ohtsuka and M. Matvejeff and K. Nishio and R. Takahashi and M. Lippmaa",

note = "Funding Information: This work has been supported by a NEDO Project under Grant No. 07E51002a. M.M. thanks Marubun Research Promotion Foundation for the financial support.",

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language = "English",

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T1 - Transport properties of LaTiO3 / SrTiO3 heterostructures

AU - Ohtsuka, R.

AU - Matvejeff, M.

AU - Nishio, K.

AU - Takahashi, R.

AU - Lippmaa, M.

N1 - Funding Information: This work has been supported by a NEDO Project under Grant No. 07E51002a. M.M. thanks Marubun Research Promotion Foundation for the financial support.

PY - 2010

Y1 - 2010

N2 - Resistivity measurements show that SrTiO3 / LaTiO3 / SrTiO3 heterostructures remain metallic even for single unit cell LaTiO3 layers. Hall resistances of all heterostructures are nonlinear functions of the applied field. The Hall data is analyzed in terms of a two-layer model, indicating that a low-mobility layer exists at the LaTiO 3 / SrTi3 interface, while carriers with mobilities approaching 10 000 cm2 /V s are present deep in the SrTiO3 substrate.

AB - Resistivity measurements show that SrTiO3 / LaTiO3 / SrTiO3 heterostructures remain metallic even for single unit cell LaTiO3 layers. Hall resistances of all heterostructures are nonlinear functions of the applied field. The Hall data is analyzed in terms of a two-layer model, indicating that a low-mobility layer exists at the LaTiO 3 / SrTi3 interface, while carriers with mobilities approaching 10 000 cm2 /V s are present deep in the SrTiO3 substrate.

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Transport properties of LaTiO₃ / SrTiO₃ heterostructures

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