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Large positive magnetoresistance effect below Curie temperature in In1.90-xMn0.1SnxO3

Journal Article


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Abstract


  • (Received 29 October 2006; accepted 23 January 2007; published online 11 May 2007)

    We report on the magnetoresistance (MR) and magnetic properties of In1.90xMn0.1SnxO3 (0x0.06) oxide. All samples were found to be ferromagnetic below TC=46 K. Sn doping changed In1.90Mn0.1O3 from an insulator to a highly conducting phase at 300 K. A positive MR effect was observed over a wide temperature range just below TC. Calculated MR values reached a maximum of 20% at 5 K. A change in the MR effect, from positive to negative, occurred under magnetic field H>4 T at 5 K. The results of x-ray absorption near-edge spectroscopy indicated that Mn ions are present both as Mn2+ and Mn4+. é2007 American Institute of Physics

Publication Date


  • 2007

Citation


  • Wang, X., Peleckis, G., Dou, S. Xue., Liu, R. & Zhu, J. Guo. (2007). Large positive magnetoresistance effect below Curie temperature in In1.90-xMn0.1SnxO3. Journal of Applied Physics, 101 (9, Part 2), 09H121-1-09H121-3.

Scopus Eid


  • 2-s2.0-34248581713

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1478&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/463

Has Global Citation Frequency


Start Page


  • 09H121-1

End Page


  • 09H121-3

Volume


  • 101

Issue


  • 9, Part 2

Abstract


  • (Received 29 October 2006; accepted 23 January 2007; published online 11 May 2007)

    We report on the magnetoresistance (MR) and magnetic properties of In1.90xMn0.1SnxO3 (0x0.06) oxide. All samples were found to be ferromagnetic below TC=46 K. Sn doping changed In1.90Mn0.1O3 from an insulator to a highly conducting phase at 300 K. A positive MR effect was observed over a wide temperature range just below TC. Calculated MR values reached a maximum of 20% at 5 K. A change in the MR effect, from positive to negative, occurred under magnetic field H>4 T at 5 K. The results of x-ray absorption near-edge spectroscopy indicated that Mn ions are present both as Mn2+ and Mn4+. é2007 American Institute of Physics

Publication Date


  • 2007

Citation


  • Wang, X., Peleckis, G., Dou, S. Xue., Liu, R. & Zhu, J. Guo. (2007). Large positive magnetoresistance effect below Curie temperature in In1.90-xMn0.1SnxO3. Journal of Applied Physics, 101 (9, Part 2), 09H121-1-09H121-3.

Scopus Eid


  • 2-s2.0-34248581713

Ro Full-text Url


  • http://ro.uow.edu.au/cgi/viewcontent.cgi?article=1478&context=engpapers

Ro Metadata Url


  • http://ro.uow.edu.au/engpapers/463

Has Global Citation Frequency


Start Page


  • 09H121-1

End Page


  • 09H121-3

Volume


  • 101

Issue


  • 9, Part 2