Growth of Ruddlesden-Popper type faults in Sr-excess SrTiO3 homoepitaxial thin films by pulsed laser deposition

Y. Tokuda; S. Kobayashi; T. Ohnishi; T. Mizoguchi; N. Shibata; Y. Ikuhara; T. Yamamoto

doi:10.1063/1.3656340

Growth of Ruddlesden-Popper type faults in Sr-excess SrTiO₃ homoepitaxial thin films by pulsed laser deposition

Y. Tokuda, S. Kobayashi, T. Ohnishi, T. Mizoguchi, N. Shibata, Y. Ikuhara, T. Yamamoto

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

36 Citations (Scopus)

Abstract

Ruddlesden-Popper (R.P.) type faults have been investigated for Sr-excess SrTiO₃ (STO) homoepitaxial thin films by pulsed laser deposition (PLD) and tuning of the laser fluence. The R.P. type fault structures were found to depend on the amount of excess Sr. The growth direction of the planer faults changed from normal to normal and parallel to the substrate surface with an increase in excess Sr. Due to the directional change of the planer faults, the out-of-plane lattice shows lattice expansion. The results suggest that we can control the planer fault structures in STO thin films simply by changing the laser fluence in the PLD method.

Original language	English
Article number	173109
Journal	Applied Physics Letters
Volume	99
Issue number	17
DOIs	https://doi.org/10.1063/1.3656340
Publication status	Published - 2011 Oct 24
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.3656340

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title = "Growth of Ruddlesden-Popper type faults in Sr-excess SrTiO3 homoepitaxial thin films by pulsed laser deposition",

abstract = "Ruddlesden-Popper (R.P.) type faults have been investigated for Sr-excess SrTiO3 (STO) homoepitaxial thin films by pulsed laser deposition (PLD) and tuning of the laser fluence. The R.P. type fault structures were found to depend on the amount of excess Sr. The growth direction of the planer faults changed from normal to normal and parallel to the substrate surface with an increase in excess Sr. Due to the directional change of the planer faults, the out-of-plane lattice shows lattice expansion. The results suggest that we can control the planer fault structures in STO thin films simply by changing the laser fluence in the PLD method.",

author = "Y. Tokuda and S. Kobayashi and T. Ohnishi and T. Mizoguchi and N. Shibata and Y. Ikuhara and T. Yamamoto",

note = "Funding Information: The authors would like to thank N. Saito for assistance in preparation of TEM samples. This work was supported by a Grant-in-Aid for Scientific Research on Priority Areas “Nano Materials Science for Atomic Scale Modification 474” from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan.",

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T1 - Growth of Ruddlesden-Popper type faults in Sr-excess SrTiO3 homoepitaxial thin films by pulsed laser deposition

AU - Tokuda, Y.

AU - Kobayashi, S.

AU - Ohnishi, T.

AU - Mizoguchi, T.

AU - Shibata, N.

AU - Ikuhara, Y.

AU - Yamamoto, T.

N1 - Funding Information: The authors would like to thank N. Saito for assistance in preparation of TEM samples. This work was supported by a Grant-in-Aid for Scientific Research on Priority Areas “Nano Materials Science for Atomic Scale Modification 474” from the Ministry of Education, Culture, Sports, Science and Technology (MEXT) of Japan.

PY - 2011/10/24

Y1 - 2011/10/24

N2 - Ruddlesden-Popper (R.P.) type faults have been investigated for Sr-excess SrTiO3 (STO) homoepitaxial thin films by pulsed laser deposition (PLD) and tuning of the laser fluence. The R.P. type fault structures were found to depend on the amount of excess Sr. The growth direction of the planer faults changed from normal to normal and parallel to the substrate surface with an increase in excess Sr. Due to the directional change of the planer faults, the out-of-plane lattice shows lattice expansion. The results suggest that we can control the planer fault structures in STO thin films simply by changing the laser fluence in the PLD method.

AB - Ruddlesden-Popper (R.P.) type faults have been investigated for Sr-excess SrTiO3 (STO) homoepitaxial thin films by pulsed laser deposition (PLD) and tuning of the laser fluence. The R.P. type fault structures were found to depend on the amount of excess Sr. The growth direction of the planer faults changed from normal to normal and parallel to the substrate surface with an increase in excess Sr. Due to the directional change of the planer faults, the out-of-plane lattice shows lattice expansion. The results suggest that we can control the planer fault structures in STO thin films simply by changing the laser fluence in the PLD method.

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Growth of Ruddlesden-Popper type faults in Sr-excess SrTiO₃ homoepitaxial thin films by pulsed laser deposition

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