Switching magnetoresistance in vertically interfaced Pr 0.5Ca0.5MnO3 grown on ZnO nanowires

R. V.K. Mangalam; Z. Zhang; T. Wu; W. Prellier

doi:10.1063/1.3627182

Switching magnetoresistance in vertically interfaced Pr _0.5Ca_0.5MnO₃ grown on ZnO nanowires

R. V.K. Mangalam, Z. Zhang, T. Wu, W. Prellier^*

^*Corresponding author for this work

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

4 Scopus citations

Abstract

The synthesis, morphology, and magneto-transport properties of nanostructure-engineered charge-ordered Pr_0.5Ca_0.5MnO ₃ grown on ZnO nanowires are reported. The stability of the charge-ordering can be tuned, but more interestingly, the sign of the magnetoresistance is inverted at low temperatures. Coexistence of ferromagnetic clusters on the surface and antiferromagnetic phase in the core of the grains were considered in order to understand these features. This work suggests that such a process of growing on nanowires (NW) network can be readily extended to other transition metal oxides and open doors towards tailoring their functionalities.

Original language	English (US)
Article number	103102
Journal	Applied Physics Letters
Volume	99
Issue number	10
DOIs	https://doi.org/10.1063/1.3627182
State	Published - Sep 5 2011
Externally published	Yes

Bibliographical note

Funding Information:
The authors R.V.K.M. and W.P. acknowledge CEFIPRA/IFPACR for their financial support (#3908-1). Work is done in the frame of the Laboratoire Franco-Indien pour la Cooperation Scientifique (LAFICS) and the MERLION program.

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

Access to Document

10.1063/1.3627182

Cite this

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abstract = "The synthesis, morphology, and magneto-transport properties of nanostructure-engineered charge-ordered Pr0.5Ca0.5MnO 3 grown on ZnO nanowires are reported. The stability of the charge-ordering can be tuned, but more interestingly, the sign of the magnetoresistance is inverted at low temperatures. Coexistence of ferromagnetic clusters on the surface and antiferromagnetic phase in the core of the grains were considered in order to understand these features. This work suggests that such a process of growing on nanowires (NW) network can be readily extended to other transition metal oxides and open doors towards tailoring their functionalities.",

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