Giant positive magnetoresistance in Fe doped In2O3 and InREO3 (RE=Eu,Nd) composites
This article was originally published as Peleckis, G, Wang, XL, Dou, SX, Munroe, P, Ding, J and Lee, B, Giant positive magnetoresistance in Fe doped In2O3 and InREO3 (RE=Eu,Nd) composites, Journal of Applied Physics, 103, 2008, 07D113-1-07D113-3. Copyright American Institute of Physics 2008. Original journal article available here
Synthesis and characterization of Fe and rare earth (RE) (RE=Eu,Nd) codoped bulk In2O3 oxide are reported. Composites consisting of Fe-doped In2O3 and InREO3 phases were formed, as determined by x-ray diffraction and transmission electron microscopy, with particle sizes of 50–120 nm. The composites exhibit superparamagnetic and semiconducting behavior. A giant positive magnetoresistance is observed at low temperatures, reaching 81% and 50% at 5 K in Eu–Fe and Nd–Fe codoped samples, respectively.
G. Peleckis, X. L. Wang, S. X. Dou, P. Munroe, J. Ding, and B. Lee. "Giant positive magnetoresistance in Fe doped In2O3 and InREO3 (RE=Eu,Nd) composites" Faculty of Engineering - Papers (2008).
Available at: http://works.bepress.com/xlwang/54