Paper Title:
Properties of the Colossal Magnetoresistivity and its Field Sensitivity of the Mixed-Valence Manganites Nd0.52Sr0.48MnO3
  Abstract

In this paper, according to the model proposed by Wagner et al., the properties of the magnetically aligned clusters in rare earth manganite Nd0.52Sr0.48MnO3 film are investigated. As we all have known, even at the same temperature and in the same external magnetic field the colossal magnetoresistivity (CMR) effects of different manganites are different. Through imitating the variation of the magnetoresistance (MR) with respect to some physics parameters, the built-in factors that can influence the value of MR and the field sensitivity are analyzed. The investigations show that the CMR effects, to some extent, can be governed by the size of the magnetically aligned clusters. In addition, through analyzing the different magnetoresistance scaling in different magnetic phases it is found that with the paramagnetic-ferromagnetic transition a sudden change in the size of the magnetically aligned clusters occurs, the physical origin of which are explored.

  Info
Periodical
Materials Science Forum (Volumes 663-665)
Edited by
Yuan Ming Huang
Pages
890-893
DOI
10.4028/www.scientific.net/MSF.663-665.890
Citation
S. W. Ren, T. S. Liu, Z. H. Li, "Properties of the Colossal Magnetoresistivity and its Field Sensitivity of the Mixed-Valence Manganites Nd0.52Sr0.48MnO3", Materials Science Forum, Vols. 663-665, pp. 890-893, 2011
Online since
November 2010
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