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

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

24 Scopus citations

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.

Original languageEnglish (US)
Article number222501
JournalApplied Physics Letters
Volume96
Issue number22
DOIs
StatePublished - May 31 2010

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)

Fingerprint

Dive into the research topics of 'Enhanced low field magnetoresistance in nanocrystalline La0.7 Sr0.3 MnO3 synthesized on MgO nanowires'. Together they form a unique fingerprint.

Cite this