Please use this identifier to cite or link to this item: http://lib.jncasr.ac.in:8080/jspui/handle/10572/955
Title: Giant Magnetoresistance in Bulk Samples of La1-xAxMnO3 (A = Sr or Ca)
Authors: Mahesh, R
Mahendiran, R
Raychaudhuri, A K
Keywords: Experimental study
Magnetoresistance
Metal-insulator transformations
Temperature dependence
Lanthanum oxides
Manganese oxides
Strontium oxides
Calcium oxides
Quaternary compounds
Transition element compounds
Rare earth compounds
Issue Date: Jan-1995
Publisher: Academic Press Inc JNL-Comp Subscriptions
Citation: Journal of Solid State Chemistry 114(1), 297-299 (1995)
Abstract: Magnetoresistance measurements have been carried out on bulk samples of several members of the La1-xAxMnO3 family (A = Sr and Ca) with varying x or Mn4+ content. The magnitude of magnetoresistance (MR) is highest at the insulator-metal (I-M) transition when the transition temperature is relatively low (≤250 K). The relative MR (%MR) is essentially the same (40-50%) at 4.2 K for all the compositions showing the I-M transition, namely ∼15% at T ≥ 300 K. Insulating compositions (small or large x) show smaller %MR than the compositions that undergo the I-M transition.
Description: Letter. Restricted Access.
URI: http://hdl.handle.net/10572/955
Other Identifiers: 0022-4596
Appears in Collections:Research Papers (Prof. C.N.R. Rao)

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