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Title: Structural, Magnetic and Electronic Properties of (110)-OrientedEpitaxial Thin Films of Bilayer Manganite La1.2Sr1.8Mn2O7

Abstract

We have synthesized (110)-oriented epitaxial thin films of the bilayer (n=2) manganite, La{sub 1.2}Sr{sub 1.8}Mn{sub 2}O{sub 7}, with the metallic/ferromagnetic a-b planes lying perpendicular to the substrate surface and the c-axis aligned in the plane of the film. X-ray diffraction and transmission electron microscopy confirm the alignment of the a-b planes along the [1{bar 1}0] substrate direction. The films consist primarily of the n=2 phase with a minor component of the n=1 (La,Sr)2MnO{sub 4} and n={infinity} (La,Sr)MnO{sub 3} phases. A resistivity maximum coincides with a ferromagnet/paramagnet transition at a reduced {Tc}{approx}90 K (versus 120 K for bulk), indicative of the effects of epitaxial strain. The films display similar anisotropic properties to their bulk counterpart with the magnetically easy direction confined to the a-b planes and 20-200 times lower resistivity for current flowing along the a-b planes compared to the c-axis.

Authors:
; ; ; ; ; ;
Publication Date:
Research Org.:
Ernest Orlando Lawrence Berkeley NationalLaboratory, Berkeley, CA (US)
Sponsoring Org.:
USDOE Director. Office of Science. Office of Basic EnergySciences, Argonne National Laboratory
OSTI Identifier:
890675
Report Number(s):
LBNL-58859
Journal ID: ISSN 0003-6951; APPLAB; R&D Project: 513316; BnR: KC0201030; TRN: US200822%%86
DOE Contract Number:  
DE-AC02-05CH11231
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 87; Related Information: Journal Publication Date: 2005; Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
36; ALIGNMENT; SUBSTRATES; THIN FILMS; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Citation Formats

Takamura, Yayoi, Grepstad, Jostein K, Chopdekar, Rajesh V, Suzuki, Yuri, Marshall, Ann F, Zheng, Hong, and Mitchell, John F. Structural, Magnetic and Electronic Properties of (110)-OrientedEpitaxial Thin Films of Bilayer Manganite La1.2Sr1.8Mn2O7. United States: N. p., 2005. Web. doi:10.1063/1.2077850.
Takamura, Yayoi, Grepstad, Jostein K, Chopdekar, Rajesh V, Suzuki, Yuri, Marshall, Ann F, Zheng, Hong, & Mitchell, John F. Structural, Magnetic and Electronic Properties of (110)-OrientedEpitaxial Thin Films of Bilayer Manganite La1.2Sr1.8Mn2O7. United States. https://doi.org/10.1063/1.2077850
Takamura, Yayoi, Grepstad, Jostein K, Chopdekar, Rajesh V, Suzuki, Yuri, Marshall, Ann F, Zheng, Hong, and Mitchell, John F. Mon . "Structural, Magnetic and Electronic Properties of (110)-OrientedEpitaxial Thin Films of Bilayer Manganite La1.2Sr1.8Mn2O7". United States. https://doi.org/10.1063/1.2077850.
@article{osti_890675,
title = {Structural, Magnetic and Electronic Properties of (110)-OrientedEpitaxial Thin Films of Bilayer Manganite La1.2Sr1.8Mn2O7},
author = {Takamura, Yayoi and Grepstad, Jostein K and Chopdekar, Rajesh V and Suzuki, Yuri and Marshall, Ann F and Zheng, Hong and Mitchell, John F},
abstractNote = {We have synthesized (110)-oriented epitaxial thin films of the bilayer (n=2) manganite, La{sub 1.2}Sr{sub 1.8}Mn{sub 2}O{sub 7}, with the metallic/ferromagnetic a-b planes lying perpendicular to the substrate surface and the c-axis aligned in the plane of the film. X-ray diffraction and transmission electron microscopy confirm the alignment of the a-b planes along the [1{bar 1}0] substrate direction. The films consist primarily of the n=2 phase with a minor component of the n=1 (La,Sr)2MnO{sub 4} and n={infinity} (La,Sr)MnO{sub 3} phases. A resistivity maximum coincides with a ferromagnet/paramagnet transition at a reduced {Tc}{approx}90 K (versus 120 K for bulk), indicative of the effects of epitaxial strain. The films display similar anisotropic properties to their bulk counterpart with the magnetically easy direction confined to the a-b planes and 20-200 times lower resistivity for current flowing along the a-b planes compared to the c-axis.},
doi = {10.1063/1.2077850},
url = {https://www.osti.gov/biblio/890675}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = ,
volume = 87,
place = {United States},
year = {2005},
month = {5}
}