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2008 | 113 | 1 | 251-254
Article title

Magnetic and Transport Properties of La_{0.67}Pb_{0.33}(Mn_{1-x}Co_x)O_3

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EN
Abstracts
EN
Detailed studies of temperature dependences of magnetization, AC susceptibility and electrical resistance were performed on La_{0.67}Pb_{0.33}(Mn_{1-x}Co_x)O_3 ceramics with x = 0.01 and 0.1. Typical features of both compounds are the hysteretic behavior between the zero-field-cooled magnetization regime and the field-cooled magnetization regime, a very weak field dependence of a maximum in zero-field-cooled magnetization and practically no frequency dependence of the peak in AC susceptibility χ"(T). Anomalies in the electrical resistance connected with the ferromagnetic transition at T_C, the insulator-metal transitions at T_p and the re-entrant metal-isolator transition at T* are field dependent pointing to magnetic origin of these transitions. Colossal magnetoresistance was observed in both compounds.
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Contributors
author
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic
author
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic
author
  • Institute of Experimental Physics, Slovak Academy of Sciences, Watsonova 47, 040 01 Košice, Slovak Republic
author
  • Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University, Altenbergerstrasse 69, 4040 Linz, Austria
author
  • Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University, Altenbergerstrasse 69, 4040 Linz, Austria
author
  • Institute for Chemical Technology of Inorganic Materials, Johannes Kepler University, Altenbergerstrasse 69, 4040 Linz, Austria
References
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  • 5. J. Przewoźnik, J. Przewoźnik, J.Żukrowski, J. Chmist, Z. Tarnawski, A. Kołodziejczyk, K. Krop, K. Kellner, G. Gritzner, Phys. Status Solidi C 3, 138 (2006)
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Document Type
Publication order reference
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YADDA identifier
bwmeta1.element.bwnjournal-article-appv113n1061kz
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