PL EN


Preferences help
enabled [disable] Abstract
Number of results
2014 | 126 | 1 | 296-297
Article title

Magnetic Properties of La_{0.85}Ag_{0.15}MnO_{3} Nano-Powders Under Pressure

Content
Title variants
Languages of publication
EN
Abstracts
EN
In our paper we present effect of pressure on magnetic properties of La_{0.85}Ag_{0.15}MnO_{3} nanopowders prepared by glycine-nitrate method. The particle size and crystal structure were modified by heat treatment. The average size of particle varies from about 25 nm for as prepared sample to 60 nm for annealed sample. Crystal structure changes from orthorhombic to rhombohedral after annealing at 600 °C/2 hours. The Curie temperature increases with annealing and is more than doubled after annealing at 600 °C/2 hours. The exchange bias phenomenon was observed in samples with orthorhombic crystal structure with average particle size of about 25 nm. Pressure effect on the Curie temperature T_{C}, saturated magnetization μ_{s} and exchange bias field H_{E} is negligible in this case. In the case of the samples with rhombohedral structure, T_{C}, μ_{s} and remnant magnetization μ_{r} increase with pressure; the coercive field decreases with pressure.
Keywords
Contributors
author
  • Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
  • Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
  • Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
  • Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
  • Institute of Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova 11, 041 54 Košice, Slovakia
author
  • Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
  • Institute of Experimental Physics SAS, Watsonova 47, 040 01 Košice, Slovakia
author
  • Polish Academy of Sciences, Radzikowskiego 152, Kraków, Poland
author
  • Polish Academy of Sciences, Radzikowskiego 152, Kraków, Poland
References
  • [1] J.M.D. Coey, T. Venkatesan, A.J. Millis, J.R. Cooper, P.C. Riedi, P.B. Littlewood, Philos. Trans.: Math., Phys. Eng. Sci. 365, 1519 (1998)
  • [2] N.T. Hiena, N.P. Thuya, Physica B 319, 168 (2002), doi: 10.1016/S0921-4526(02)01118-3
  • [3] Y. Kalyana Lakshmi, P. Venugopa Reddy, J. Mag. Mag. Mater. 321, 1240 (2009), doi: 10.1016/j.jmmm.2008.11.012
  • [4] M. Mihalik, M. Antonak, K. Csach, M. Fitta, M. Mihalik jr., M. Vavra1, M. Zentková, EPJ Web Conf. 40, 15006 (2013), doi: 10.1051/epjconf/20134015006
  • [5] D. Markovic, V. Kusigerski, M. Tadic, J. Blanusa, M.V. Antisari, V. Spasojevic, Scr Mater 59, 35 (2008), doi: 10.1016/j.scriptamat.2008.02.020
  • [6] M.H. Rietveld, J. Appl. Cryst. 2, (1969)
  • [7] J. Kamarád, Z. Machátová, Z. Arnold, Rev. Sci. Instruments 75, 5022 (2004), doi: 10.1063/1.1808122
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv126n1143kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.