Labyrinth-type domain structure of heteroepitaxial SrMnO2.5 film

Shunsuke Kobayashi; Yuichi Ikuhara; Takahisa Yamamoto

doi:10.1063/1.4811152

Labyrinth-type domain structure of heteroepitaxial SrMnO_2.5 film

Shunsuke Kobayashi, Yuichi Ikuhara, Takahisa Yamamoto

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

11 Citations (Scopus)

Abstract

SrMnO_2.5 films grown on SrTiO₃ and LSAT substrates were prepared and oxygen vacancies in the films were directly confirmed by annular bright-field imaging in a scanning transmission electron microscope. The SrMnO_2.5 films show a unique maze like pattern of domains, i.e., a labyrinth-type domain structure, that arises from relaxation of strain induced by lattice mismatches. The behavior of the domain widths is explained by the geometrical relationship for estimating of the average distance of misfit dislocations. We present useful principles for controlling the domain structures with a view to potential practical applications.

Original language	English
Article number	231911
Journal	Applied Physics Letters
Volume	102
Issue number	23
DOIs	https://doi.org/10.1063/1.4811152
Publication status	Published - 2013 Jun 10
Externally published	Yes

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.4811152

Cite this

@article{fc50f9609d7d467cbce3a1ed3829daf0,

title = "Labyrinth-type domain structure of heteroepitaxial SrMnO2.5 film",

abstract = "SrMnO2.5 films grown on SrTiO3 and LSAT substrates were prepared and oxygen vacancies in the films were directly confirmed by annular bright-field imaging in a scanning transmission electron microscope. The SrMnO2.5 films show a unique maze like pattern of domains, i.e., a labyrinth-type domain structure, that arises from relaxation of strain induced by lattice mismatches. The behavior of the domain widths is explained by the geometrical relationship for estimating of the average distance of misfit dislocations. We present useful principles for controlling the domain structures with a view to potential practical applications.",

author = "Shunsuke Kobayashi and Yuichi Ikuhara and Takahisa Yamamoto",

note = "Funding Information: The authors would like to thank Dr. K. Mitsuishi, Y. Nakayama, and A. Matsuo of NIMS (Japan) for training for TEM sample preparation. This work was supported by a Grant-in-Aid for Scientific Research on Priority Areas “Nano Materials Science for Atomic Scale Modification 474” and Research Hub for Advanced Nano Characterization, The University of Tokyo, supported by the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. S.K. was supported as a Japan Society for the Promotion of Science (JSPS) research fellow.",

year = "2013",

month = jun,

day = "10",

doi = "10.1063/1.4811152",

language = "English",

volume = "102",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

number = "23",

}

TY - JOUR

T1 - Labyrinth-type domain structure of heteroepitaxial SrMnO2.5 film

AU - Kobayashi, Shunsuke

AU - Ikuhara, Yuichi

AU - Yamamoto, Takahisa

N1 - Funding Information: The authors would like to thank Dr. K. Mitsuishi, Y. Nakayama, and A. Matsuo of NIMS (Japan) for training for TEM sample preparation. This work was supported by a Grant-in-Aid for Scientific Research on Priority Areas “Nano Materials Science for Atomic Scale Modification 474” and Research Hub for Advanced Nano Characterization, The University of Tokyo, supported by the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan. S.K. was supported as a Japan Society for the Promotion of Science (JSPS) research fellow.

PY - 2013/6/10

Y1 - 2013/6/10

N2 - SrMnO2.5 films grown on SrTiO3 and LSAT substrates were prepared and oxygen vacancies in the films were directly confirmed by annular bright-field imaging in a scanning transmission electron microscope. The SrMnO2.5 films show a unique maze like pattern of domains, i.e., a labyrinth-type domain structure, that arises from relaxation of strain induced by lattice mismatches. The behavior of the domain widths is explained by the geometrical relationship for estimating of the average distance of misfit dislocations. We present useful principles for controlling the domain structures with a view to potential practical applications.

AB - SrMnO2.5 films grown on SrTiO3 and LSAT substrates were prepared and oxygen vacancies in the films were directly confirmed by annular bright-field imaging in a scanning transmission electron microscope. The SrMnO2.5 films show a unique maze like pattern of domains, i.e., a labyrinth-type domain structure, that arises from relaxation of strain induced by lattice mismatches. The behavior of the domain widths is explained by the geometrical relationship for estimating of the average distance of misfit dislocations. We present useful principles for controlling the domain structures with a view to potential practical applications.

UR - http://www.scopus.com/inward/record.url?scp=84879116634&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84879116634&partnerID=8YFLogxK

U2 - 10.1063/1.4811152

DO - 10.1063/1.4811152

M3 - Article

AN - SCOPUS:84879116634

SN - 0003-6951

VL - 102

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 23

M1 - 231911

ER -

Labyrinth-type domain structure of heteroepitaxial SrMnO_2.5 film

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this