Enhanced low field magnetoresistance in nanocrystalline La0.7 Sr0.3 MnO3 synthesized on MgO nanowires

Z. Zhang; R. Ranjith; B. T. Xie; L. You; L. M. Wong; S. J. Wang; J. L. Wang; W. Prellier; Y. G. Zhao; T. Wu

doi:10.1063/1.3432113

Enhanced low field magnetoresistance in nanocrystalline La_0.7 Sr_0.3 MnO₃ synthesized on MgO nanowires

Z. Zhang^*, R. Ranjith, B. T. Xie, L. You, L. M. Wong, S. J. Wang, J. L. Wang, W. Prellier, Y. G. Zhao, T. Wu

^*Corresponding author for this work

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

24 Scopus citations

Abstract

We report on the structure and transport properties of nanocrystalline manganite La_0.7 Sr_0.3 MnO₃ (LSMO) synthesized on nanowires-engineered MgO substrates by pulsed laser deposition, which is compared with reference samples deposited directly on flat MgO substrates. Such LSMO/MgO nanocomposites show enhanced low field magnetoresistance, especially at low temperature, due to the dominant spin-polarized intergrain tunneling. This work suggests that growing on nanoengineered substrates is a viable route to achieve nanostructured materials with desired crystalline structure and physical properties.

Original language	English (US)
Article number	222501
Journal	Applied Physics Letters
Volume	96
Issue number	22
DOIs	https://doi.org/10.1063/1.3432113
State	Published - May 31 2010
Externally published	Yes

Bibliographical note

Funding Information:
We acknowledge support from the Singapore National Research Foundation (Grant No. NRF-G-CRP 2007-05), the C’Nano Nord Ouest (Grant No. GDR 2975), the Merlion (2.04.07) programs, the National 973 Project (Grant No. 2009CB929202), and the National Science Foundation of China (Grant No. 50872065).

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.3432113

Cite this

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title = "Enhanced low field magnetoresistance in nanocrystalline La0.7 Sr0.3 MnO3 synthesized on MgO nanowires",

abstract = "We report on the structure and transport properties of nanocrystalline manganite La0.7 Sr0.3 MnO3 (LSMO) synthesized on nanowires-engineered MgO substrates by pulsed laser deposition, which is compared with reference samples deposited directly on flat MgO substrates. Such LSMO/MgO nanocomposites show enhanced low field magnetoresistance, especially at low temperature, due to the dominant spin-polarized intergrain tunneling. This work suggests that growing on nanoengineered substrates is a viable route to achieve nanostructured materials with desired crystalline structure and physical properties.",

author = "Z. Zhang and R. Ranjith and Xie, {B. T.} and L. You and Wong, {L. M.} and Wang, {S. J.} and Wang, {J. L.} and W. Prellier and Zhao, {Y. G.} and T. Wu",

note = "Funding Information: We acknowledge support from the Singapore National Research Foundation (Grant No. NRF-G-CRP 2007-05), the C{\textquoteright}Nano Nord Ouest (Grant No. GDR 2975), the Merlion (2.04.07) programs, the National 973 Project (Grant No. 2009CB929202), and the National Science Foundation of China (Grant No. 50872065).",

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doi = "10.1063/1.3432113",

language = "English (US)",

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T1 - Enhanced low field magnetoresistance in nanocrystalline La0.7 Sr0.3 MnO3 synthesized on MgO nanowires

AU - Zhang, Z.

AU - Ranjith, R.

AU - Xie, B. T.

AU - You, L.

AU - Wong, L. M.

AU - Wang, S. J.

AU - Wang, J. L.

AU - Prellier, W.

AU - Zhao, Y. G.

AU - Wu, T.

N1 - Funding Information: We acknowledge support from the Singapore National Research Foundation (Grant No. NRF-G-CRP 2007-05), the C’Nano Nord Ouest (Grant No. GDR 2975), the Merlion (2.04.07) programs, the National 973 Project (Grant No. 2009CB929202), and the National Science Foundation of China (Grant No. 50872065).

PY - 2010/5/31

Y1 - 2010/5/31

N2 - We report on the structure and transport properties of nanocrystalline manganite La0.7 Sr0.3 MnO3 (LSMO) synthesized on nanowires-engineered MgO substrates by pulsed laser deposition, which is compared with reference samples deposited directly on flat MgO substrates. Such LSMO/MgO nanocomposites show enhanced low field magnetoresistance, especially at low temperature, due to the dominant spin-polarized intergrain tunneling. This work suggests that growing on nanoengineered substrates is a viable route to achieve nanostructured materials with desired crystalline structure and physical properties.

AB - We report on the structure and transport properties of nanocrystalline manganite La0.7 Sr0.3 MnO3 (LSMO) synthesized on nanowires-engineered MgO substrates by pulsed laser deposition, which is compared with reference samples deposited directly on flat MgO substrates. Such LSMO/MgO nanocomposites show enhanced low field magnetoresistance, especially at low temperature, due to the dominant spin-polarized intergrain tunneling. This work suggests that growing on nanoengineered substrates is a viable route to achieve nanostructured materials with desired crystalline structure and physical properties.

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