Interfaces between solution-derived LiMn2O4 thin films and MgO and Au/MgO substrates

Yumi H. Ikuhara; Xiuliang Ma; Yuji Iwamoto; Yuichi Ikuhara; Koichi Kikuta; Shin Ichi Hirano

doi:10.1557/JMR.2002.0051

Interfaces between solution-derived LiMn₂O₄ thin films and MgO and Au/MgO substrates

Yumi H. Ikuhara, Xiuliang Ma, Yuji Iwamoto, Yuichi Ikuhara, Koichi Kikuta, Shin Ichi Hirano

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

4 Citations (Scopus)

Abstract

Spinel LiMn₂O₄ thin films have been prepared on MgO(110) and Au/MgO(110) substrates by a chemical solution deposition method. The interfaces between film and substrate were characterized by means of high-resolution transmission electron microscopy (HREM) as well as x-ray diffraction. Cross-sectional HREM observation revealed that LiMn₂O₄ films grew epitaxially on the MgO(110) and Au/MgO(110) substrates. In the LiMn₂O₄/MgO system, misfit dislocations formed to accommodate the lattice strain at the LiMn₂O₄/MgO interface. In the LiMn₂O₄/Au/MgO system, Au grew epitaxially on the MgO substrate with its surface facetted along (111) planes, probably because the surface energy of this plane is relatively low. The formation of these facets is considered to have a favorable effect on the growth of (111) planes of LiMn₂O₄ when deposited on the Au film.

Original language	English
Pages (from-to)	358-366
Number of pages	9
Journal	Journal of Materials Research
Volume	17
Issue number	2
DOIs	https://doi.org/10.1557/JMR.2002.0051
Publication status	Published - 2002 Feb
Externally published	Yes

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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title = "Interfaces between solution-derived LiMn2O4 thin films and MgO and Au/MgO substrates",

abstract = "Spinel LiMn2O4 thin films have been prepared on MgO(110) and Au/MgO(110) substrates by a chemical solution deposition method. The interfaces between film and substrate were characterized by means of high-resolution transmission electron microscopy (HREM) as well as x-ray diffraction. Cross-sectional HREM observation revealed that LiMn2O4 films grew epitaxially on the MgO(110) and Au/MgO(110) substrates. In the LiMn2O4/MgO system, misfit dislocations formed to accommodate the lattice strain at the LiMn2O4/MgO interface. In the LiMn2O4/Au/MgO system, Au grew epitaxially on the MgO substrate with its surface facetted along (111) planes, probably because the surface energy of this plane is relatively low. The formation of these facets is considered to have a favorable effect on the growth of (111) planes of LiMn2O4 when deposited on the Au film.",

author = "Ikuhara, {Yumi H.} and Xiuliang Ma and Yuji Iwamoto and Yuichi Ikuhara and Koichi Kikuta and Hirano, {Shin Ichi}",

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T1 - Interfaces between solution-derived LiMn2O4 thin films and MgO and Au/MgO substrates

AU - Ikuhara, Yumi H.

AU - Ma, Xiuliang

AU - Iwamoto, Yuji

AU - Ikuhara, Yuichi

AU - Kikuta, Koichi

AU - Hirano, Shin Ichi

PY - 2002/2

Y1 - 2002/2

N2 - Spinel LiMn2O4 thin films have been prepared on MgO(110) and Au/MgO(110) substrates by a chemical solution deposition method. The interfaces between film and substrate were characterized by means of high-resolution transmission electron microscopy (HREM) as well as x-ray diffraction. Cross-sectional HREM observation revealed that LiMn2O4 films grew epitaxially on the MgO(110) and Au/MgO(110) substrates. In the LiMn2O4/MgO system, misfit dislocations formed to accommodate the lattice strain at the LiMn2O4/MgO interface. In the LiMn2O4/Au/MgO system, Au grew epitaxially on the MgO substrate with its surface facetted along (111) planes, probably because the surface energy of this plane is relatively low. The formation of these facets is considered to have a favorable effect on the growth of (111) planes of LiMn2O4 when deposited on the Au film.

AB - Spinel LiMn2O4 thin films have been prepared on MgO(110) and Au/MgO(110) substrates by a chemical solution deposition method. The interfaces between film and substrate were characterized by means of high-resolution transmission electron microscopy (HREM) as well as x-ray diffraction. Cross-sectional HREM observation revealed that LiMn2O4 films grew epitaxially on the MgO(110) and Au/MgO(110) substrates. In the LiMn2O4/MgO system, misfit dislocations formed to accommodate the lattice strain at the LiMn2O4/MgO interface. In the LiMn2O4/Au/MgO system, Au grew epitaxially on the MgO substrate with its surface facetted along (111) planes, probably because the surface energy of this plane is relatively low. The formation of these facets is considered to have a favorable effect on the growth of (111) planes of LiMn2O4 when deposited on the Au film.

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