Strain-controlled electronic properties and magnetorelaxor behaviors in electron-doped CaMnO3 thin films

P. H. Xiang; H. Yamada; A. Sawa; H. Akoh

doi:10.1063/1.3082091

Strain-controlled electronic properties and magnetorelaxor behaviors in electron-doped CaMnO₃ thin films

P. H. Xiang, H. Yamada, A. Sawa, H. Akoh

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

14 Scopus citations

Abstract

We have fabricated epitaxial thin films of electron-doped manganite Ca _1-xCe_x MnO₃ (CCMO) with 0≤x≤0.08. The transport properties of CCMO films are very sensitive to substrate-controlled epitaxial strain. For the CCMO (x=0.05) film, the metallic transport characteristic is observed only on a nearly lattice-matched NdAlO₃ (NAO) substrate, while tensilely and compressively stressed films are insulating. The CCMO (x=0.06) film on the NAO substrate shows a large magnetoresistance characteristic of a magnetorelaxor. This behavior can be explained in terms of the phase separation and the irreversible growth of the metallic domain in antiferromagnetic insulating matrix.

Original language	English
Article number	062109
Journal	Applied Physics Letters
Volume	94
Issue number	6
DOIs	https://doi.org/10.1063/1.3082091
State	Published - 2009
Externally published	Yes

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title = "Strain-controlled electronic properties and magnetorelaxor behaviors in electron-doped CaMnO3 thin films",

abstract = "We have fabricated epitaxial thin films of electron-doped manganite Ca 1-xCex MnO3 (CCMO) with 0≤x≤0.08. The transport properties of CCMO films are very sensitive to substrate-controlled epitaxial strain. For the CCMO (x=0.05) film, the metallic transport characteristic is observed only on a nearly lattice-matched NdAlO3 (NAO) substrate, while tensilely and compressively stressed films are insulating. The CCMO (x=0.06) film on the NAO substrate shows a large magnetoresistance characteristic of a magnetorelaxor. This behavior can be explained in terms of the phase separation and the irreversible growth of the metallic domain in antiferromagnetic insulating matrix.",

author = "Xiang, \{P. H.\} and H. Yamada and A. Sawa and H. Akoh",

year = "2009",

doi = "10.1063/1.3082091",

language = "英语",

volume = "94",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics",

number = "6",

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TY - JOUR

T1 - Strain-controlled electronic properties and magnetorelaxor behaviors in electron-doped CaMnO3 thin films

AU - Xiang, P. H.

AU - Yamada, H.

AU - Sawa, A.

AU - Akoh, H.

PY - 2009

Y1 - 2009

N2 - We have fabricated epitaxial thin films of electron-doped manganite Ca 1-xCex MnO3 (CCMO) with 0≤x≤0.08. The transport properties of CCMO films are very sensitive to substrate-controlled epitaxial strain. For the CCMO (x=0.05) film, the metallic transport characteristic is observed only on a nearly lattice-matched NdAlO3 (NAO) substrate, while tensilely and compressively stressed films are insulating. The CCMO (x=0.06) film on the NAO substrate shows a large magnetoresistance characteristic of a magnetorelaxor. This behavior can be explained in terms of the phase separation and the irreversible growth of the metallic domain in antiferromagnetic insulating matrix.

AB - We have fabricated epitaxial thin films of electron-doped manganite Ca 1-xCex MnO3 (CCMO) with 0≤x≤0.08. The transport properties of CCMO films are very sensitive to substrate-controlled epitaxial strain. For the CCMO (x=0.05) film, the metallic transport characteristic is observed only on a nearly lattice-matched NdAlO3 (NAO) substrate, while tensilely and compressively stressed films are insulating. The CCMO (x=0.06) film on the NAO substrate shows a large magnetoresistance characteristic of a magnetorelaxor. This behavior can be explained in terms of the phase separation and the irreversible growth of the metallic domain in antiferromagnetic insulating matrix.

UR - https://www.scopus.com/pages/publications/60349108845

U2 - 10.1063/1.3082091

DO - 10.1063/1.3082091

M3 - 文章

AN - SCOPUS:60349108845

SN - 0003-6951

VL - 94

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 6

M1 - 062109

ER -

Strain-controlled electronic properties and magnetorelaxor behaviors in electron-doped CaMnO₃ thin films

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